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<channel>
	<title>Pseudonerd &#187; programação</title>
	<atom:link href="http://pseudonerd.com/category/programacao/feed" rel="self" type="application/rss+xml" />
	<link>http://pseudonerd.com</link>
	<description>blog sobre tecnologia e nerdices em geral!</description>
	<lastBuildDate>Tue, 15 May 2012 18:54:13 +0000</lastBuildDate>
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		<item>
		<title>Yii &#8211; Como duplicar um registro no banco de dados</title>
		<link>http://pseudonerd.com/php/yii-como-duplicar-um-registro-no-banco-de-dados-501</link>
		<comments>http://pseudonerd.com/php/yii-como-duplicar-um-registro-no-banco-de-dados-501#comments</comments>
		<pubDate>Tue, 15 May 2012 18:47:43 +0000</pubDate>
		<dc:creator>adlersd</dc:creator>
				<category><![CDATA[php]]></category>
		<category><![CDATA[programação]]></category>
		<category><![CDATA[yii]]></category>
		<category><![CDATA[active record]]></category>
		<category><![CDATA[attribute]]></category>
		<category><![CDATA[property]]></category>
		<category><![CDATA[yii framework]]></category>

		<guid isPermaLink="false">http://pseudonerd.com/?p=501</guid>
		<description><![CDATA[Boa tarde, isso vai ser rápido e nós vamos utilizar a implementação de Active Record do Yii. No Yii, se você quiser duplicar um registro de banco de dados, tudo que você precisa fazer é utilizar o código abaixo. 1 2 3 4 $model = $this-&#62;loadModel&#40;$id&#41;; // $id do registro que será duplicado $model-&#62;codigo = [...]
Não existem posts relacionados.]]></description>
			<content:encoded><![CDATA[<p>Boa tarde, isso vai ser rápido e nós vamos utilizar a implementação de <a title="Active Record" href="http://pt.wikipedia.org/wiki/Active_record" target="_blank">Active Record</a> do Yii.</p>
<p>No Yii, se você quiser duplicar um registro de banco de dados, tudo que você precisa fazer é utilizar o código abaixo.</p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
2
3
4
</pre></td><td class="code"><pre class="php" style="font-family:monospace;"><span style="color: #000088;">$model</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$this</span><span style="color: #339933;">-&gt;</span><span style="color: #004000;">loadModel</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$id</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span> <span style="color: #666666; font-style: italic;">// $id do registro que será duplicado</span>
<span style="color: #000088;">$model</span><span style="color: #339933;">-&gt;</span><span style="color: #004000;">codigo</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">null</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$model</span><span style="color: #339933;">-&gt;</span><span style="color: #004000;">isNewRecord</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">true</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$model</span><span style="color: #339933;">-&gt;</span><span style="color: #004000;">save</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span></pre></td></tr></table></div>

<p>A implementação acima é bastante simples, apenas carregamos o registro do banco de dados em uma variável <strong>$model</strong>, e em seguida modificaremos os valores de um atributo, e de uma propriedade. O atributo alterado chama-se <strong>codigo</strong> &#8211; e é a nossa chave primária &#8211; vamos alterá-lo para null. A gora é a vez da nossa propriedade chamada <strong>isNewRecord</strong> &#8211; que é responsável por retornar se o registro atual é novo &#8211; como true. E por último, salvar o modelo. Uma vez que o modelo é salvo, você vai obter um registro novo duplicado onde o <strong>codigo</strong> é diferente da que você acabou de carregar.</p>
<p>abraço,<br />
até…</p>
<p>Não existem posts relacionados.</p>]]></content:encoded>
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		</item>
		<item>
		<title>Mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication.</title>
		<link>http://pseudonerd.com/php/mysqlnd-cannot-connect-to-mysql-4-1-using-the-old-insecure-authentication-490</link>
		<comments>http://pseudonerd.com/php/mysqlnd-cannot-connect-to-mysql-4-1-using-the-old-insecure-authentication-490#comments</comments>
		<pubDate>Mon, 26 Dec 2011 14:28:13 +0000</pubDate>
		<dc:creator>adlersd</dc:creator>
				<category><![CDATA[banco de dados]]></category>
		<category><![CDATA[mysql]]></category>
		<category><![CDATA[php]]></category>
		<category><![CDATA[programação]]></category>
		<category><![CDATA[password]]></category>

		<guid isPermaLink="false">http://pseudonerd.com/?p=490</guid>
		<description><![CDATA[mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication. Please use an administration tool to reset your password with the command SET PASSWORD = PASSWORD(‘your_existing_password’). This will store a new, and more secure, hash value in mysql.user. If this user is used in other scripts executed by PHP 5.2 or earlier you might [...]
Não existem posts relacionados.]]></description>
			<content:encoded><![CDATA[<blockquote><p>mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication. Please use an administration tool to reset your password with the command SET PASSWORD = PASSWORD(‘your_existing_password’). This will store a new, and more secure, hash value in mysql.user. If this user is used in other scripts executed by PHP 5.2 or earlier you might need to remove the old-passwords flag from your my.cnf file</p></blockquote>
<p>Você pode verificar se a senha do seu usuário foi criada no padrão antigo utilizando o comando a seguir (com uma conta que tenha acesso a essa tabela).</p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
</pre></td><td class="code"><pre class="mysql" style="font-family:monospace;"><span style="color: #990099; font-weight: bold;">SELECT</span> <span style="color: #008000;">`User`</span><span style="color: #000033;">,</span> <span style="color: #008000;">`Host`</span><span style="color: #000033;">,</span> <span style="color: #000099;">Length</span><span style="color: #FF00FF;">&#40;</span><span style="color: #008000;">`Password`</span><span style="color: #FF00FF;">&#41;</span> <span style="color: #990099; font-weight: bold;">FROM</span> mysql.<span style="color: #000099;">user</span></pre></td></tr></table></div>

<p>Esse comando vai te mostrar o comprimento das senhas e irá retornar 16 para contas com senhas no padrão antigo e 41 para as contas com senhas novas (e, 0 para contas com nenhuma senha).</p>
<p>Se você tiver permissão, para recriar a senha no padrão &#8220;novo&#8221;, você pode utilizar as <em>queries</em> a seguir:</p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
2
</pre></td><td class="code"><pre class="mysql" style="font-family:monospace;"><span style="color: #990099; font-weight: bold;">SET</span> <span style="color: #000099;">PASSWORD</span> FOR <span style="color: #008000;">'User'</span>@<span style="color: #008000;">'Host'</span><span style="color: #CC0099;">=</span><span style="color: #000099;">PASSWORD</span><span style="color: #FF00FF;">&#40;</span><span style="color: #008000;">'sua<span style="color: #008080; font-weight: bold;">_</span>senha'</span><span style="color: #FF00FF;">&#41;</span><span style="color: #000033;">;</span>
FLUSH <span style="color: #990099; font-weight: bold;">Privileges</span></pre></td></tr></table></div>

<p>Caso você não possa fazer isso, você pode tentar utilizar as <em>queries</em> abaixo e alterar o seu php para:</p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
2
</pre></td><td class="code"><pre class="mysql" style="font-family:monospace;"><span style="color: #990099; font-weight: bold;">SET</span> <span style="color: #990099; font-weight: bold;">SESSION</span> old_passwords<span style="color: #CC0099;">=</span><span style="color: #9900FF; font-weight: bold;">FALSE</span><span style="color: #000033;">;</span>
<span style="color: #990099; font-weight: bold;">SET</span> <span style="color: #000099;">PASSWORD</span> <span style="color: #CC0099;">=</span> <span style="color: #000099;">PASSWORD</span><span style="color: #FF00FF;">&#40;</span><span style="color: #008000;">'[your password]'</span><span style="color: #FF00FF;">&#41;</span><span style="color: #000033;">;</span></pre></td></tr></table></div>


<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
2
</pre></td><td class="code"><pre class="php" style="font-family:monospace;"><span style="color: #990000;">define</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">'CLIENT_LONG_PASSWORD'</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">1</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">mysql_connect</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">'[endereco_servidor]'</span><span style="color: #339933;">,</span> <span style="color: #0000ff;">'[nome_de_usuario]'</span><span style="color: #339933;">,</span> <span style="color: #0000ff;">'[sua_senha]'</span><span style="color: #339933;">,</span> <span style="color: #009900; font-weight: bold;">false</span><span style="color: #339933;">,</span> CLIENT_LONG_PASSWORD<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span></pre></td></tr></table></div>

<p>abraço,<br />
até…</p>
<p>Não existem posts relacionados.</p>]]></content:encoded>
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		</item>
		<item>
		<title>escreva um algoritmo que calcule a média ponderada e imprima o segundo maior número</title>
		<link>http://pseudonerd.com/programacao/escreva-um-algoritmo-que-calcule-a-media-ponderada-e-imprima-o-segundo-maior-numero-482</link>
		<comments>http://pseudonerd.com/programacao/escreva-um-algoritmo-que-calcule-a-media-ponderada-e-imprima-o-segundo-maior-numero-482#comments</comments>
		<pubDate>Fri, 15 Apr 2011 15:28:22 +0000</pubDate>
		<dc:creator>adlersd</dc:creator>
				<category><![CDATA[c]]></category>
		<category><![CDATA[programação]]></category>
		<category><![CDATA[python]]></category>
		<category><![CDATA[algoritmos]]></category>
		<category><![CDATA[C]]></category>
		<category><![CDATA[média ponderada]]></category>

		<guid isPermaLink="false">http://pseudonerd.com/?p=482</guid>
		<description><![CDATA[Esse algoritmo foi proposto pela Marlene. Escreva um programa que lê 4 notas reais (do tipo double), calcule e imprime (com 2 casas decimais) a média ponderada das notas. Os pesos são: 1 para a 1ª nota, 2 para 2ª, 3 para a 3ª e 4 para a 4ª. Imprima, também, a segunda a maior [...]
Não existem posts relacionados.]]></description>
			<content:encoded><![CDATA[<p>Esse algoritmo foi proposto pela <a href="http://pseudonerd.com/programacao/escreva-um-algoritmo-que-leia-dois-numeros-inteiros-e-imprima-a-soma-e-o-produto-390/comment-page-1#comment-2539">Marlene</a>.</p>
<blockquote><p><strong><br />
Escreva  um programa   que   lê   4  notas   reais   (do  tipo  double),   calcule   e   imprime   (com 2   casas<br />
decimais) a média ponderada das notas. Os pesos são: 1 para a 1ª nota, 2 para 2ª, 3 para a 3ª e 4 para a 4ª. Imprima, também, a segunda a maior nota (com 2 casas decimais).<br />
por exemplo: Notas: 10.0, 3.5, 6.8, 7.6<br />
</strong></p></blockquote>
<p><strong>Em C:</strong></p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
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</pre></td><td class="code"><pre class="c" style="font-family:monospace;"><span style="color: #339933;">#include &lt;stdio.h&gt;</span>
&nbsp;
<span style="color: #993333;">int</span> main<span style="color: #009900;">&#40;</span><span style="color: #993333;">int</span> argc<span style="color: #339933;">,</span> <span style="color: #993333;">char</span> <span style="color: #339933;">**</span>argv<span style="color: #009900;">&#91;</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
    <span style="color: #993333;">int</span> i<span style="color: #339933;">;</span>
	<span style="color: #993333;">float</span> notas<span style="color: #009900;">&#91;</span><span style="color: #0000dd;">4</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">,</span> primeiraNota <span style="color: #339933;">=</span> <span style="color:#800080;">0.0</span><span style="color: #339933;">,</span> segundaNota <span style="color: #339933;">=</span> <span style="color:#800080;">0.0</span><span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;Digite a primeira nota: &quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	scanf<span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;%f&quot;</span><span style="color: #339933;">,</span> <span style="color: #339933;">&amp;</span>notas<span style="color: #009900;">&#91;</span><span style="color: #0000dd;">0</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;Digite o segunda nota: &quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	scanf<span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;%f&quot;</span><span style="color: #339933;">,</span> <span style="color: #339933;">&amp;</span>notas<span style="color: #009900;">&#91;</span><span style="color: #0000dd;">1</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;Digite a primeira nota: &quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	scanf<span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;%f&quot;</span><span style="color: #339933;">,</span> <span style="color: #339933;">&amp;</span>notas<span style="color: #009900;">&#91;</span><span style="color: #0000dd;">2</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;Digite o segunda nota: &quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	scanf<span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;%f&quot;</span><span style="color: #339933;">,</span> <span style="color: #339933;">&amp;</span>notas<span style="color: #009900;">&#91;</span><span style="color: #0000dd;">3</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;A media ponderada e: %.2f<span style="color: #000099; font-weight: bold;">\n</span>&quot;</span><span style="color: #339933;">,</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#40;</span>notas<span style="color: #009900;">&#91;</span><span style="color: #0000dd;">0</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">+</span> <span style="color: #009900;">&#40;</span>notas<span style="color: #009900;">&#91;</span><span style="color: #0000dd;">1</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">*</span><span style="color: #0000dd;">2</span><span style="color: #009900;">&#41;</span> <span style="color: #339933;">+</span> <span style="color: #009900;">&#40;</span>notas<span style="color: #009900;">&#91;</span><span style="color: #0000dd;">2</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">*</span><span style="color: #0000dd;">3</span><span style="color: #009900;">&#41;</span> <span style="color: #339933;">+</span> <span style="color: #009900;">&#40;</span>notas<span style="color: #009900;">&#91;</span><span style="color: #0000dd;">3</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">*</span><span style="color: #0000dd;">4</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">/</span><span style="color: #0000dd;">10</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
    primeiraNota <span style="color: #339933;">=</span> notas<span style="color: #009900;">&#91;</span><span style="color: #0000dd;">0</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
    segundaNota <span style="color: #339933;">=</span> notas<span style="color: #009900;">&#91;</span><span style="color: #0000dd;">0</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
&nbsp;
    <span style="color: #b1b100;">for</span><span style="color: #009900;">&#40;</span> i<span style="color: #339933;">=</span><span style="color: #0000dd;">0</span><span style="color: #339933;">;</span> i <span style="color: #339933;">&lt;</span> <span style="color: #0000dd;">4</span> <span style="color: #339933;">;</span> i<span style="color: #339933;">++</span> <span style="color: #009900;">&#41;</span>
    <span style="color: #009900;">&#123;</span>
        <span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span> notas<span style="color: #009900;">&#91;</span>i<span style="color: #009900;">&#93;</span> <span style="color: #339933;">&gt;</span> primeiraNota <span style="color: #009900;">&#41;</span>
        <span style="color: #009900;">&#123;</span>
            segundaNota<span style="color: #339933;">=</span>primeiraNota<span style="color: #339933;">;</span>
            primeiraNota <span style="color: #339933;">=</span> notas<span style="color: #009900;">&#91;</span>i<span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
        <span style="color: #009900;">&#125;</span>
        <span style="color: #b1b100;">else</span> <span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span> <span style="color: #009900;">&#40;</span> <span style="color: #009900;">&#40;</span>notas<span style="color: #009900;">&#91;</span>i<span style="color: #009900;">&#93;</span><span style="color: #339933;">&lt;</span>primeiraNota<span style="color: #009900;">&#41;</span> <span style="color: #339933;">&amp;&amp;</span> <span style="color: #009900;">&#40;</span>notas<span style="color: #009900;">&#91;</span>i<span style="color: #009900;">&#93;</span><span style="color: #339933;">&gt;</span>segundaNota<span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#41;</span> <span style="color: #339933;">||</span> <span style="color: #009900;">&#40;</span>primeiraNota<span style="color: #339933;">==</span>segundaNota<span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#41;</span>
        <span style="color: #009900;">&#123;</span>
            segundaNota <span style="color: #339933;">=</span> notas<span style="color: #009900;">&#91;</span>i<span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
        <span style="color: #009900;">&#125;</span>
    <span style="color: #009900;">&#125;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;A segunda maior nota e: %.2f<span style="color: #000099; font-weight: bold;">\n</span>&quot;</span><span style="color: #339933;">,</span>segundaNota<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
	<span style="color: #b1b100;">return</span> <span style="color: #0000dd;">0</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span></pre></td></tr></table></div>

<p>assim que eu tiver um tempo, eu atualizo esse post e disponibilizo a solução em python.</p>
<p>abraço,<br />
até…</p>
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		</item>
		<item>
		<title>Escreva um algoritmo que calcule a área de um triângulo</title>
		<link>http://pseudonerd.com/programacao/escreva-um-algoritmo-calcule-area-triangulo-443</link>
		<comments>http://pseudonerd.com/programacao/escreva-um-algoritmo-calcule-area-triangulo-443#comments</comments>
		<pubDate>Sat, 18 Jul 2009 23:26:20 +0000</pubDate>
		<dc:creator>adlersd</dc:creator>
				<category><![CDATA[c]]></category>
		<category><![CDATA[programação]]></category>
		<category><![CDATA[python]]></category>
		<category><![CDATA[algoritmo]]></category>

		<guid isPermaLink="false">http://pseudonerd.com/?p=443</guid>
		<description><![CDATA[Escreva um algoritmo que calcule a área de um triângulo. * (estes valores serão fornecidos pelo usuário). Em C: 1 2 3 4 5 6 7 8 9 10 11 12 #include &#60;stdio.h&#62; &#160; int main&#40;int argc, char **argv&#91;&#93;&#41;&#123; int base, altura; printf&#40;&#34;digite a base&#34;&#41;; scanf&#40;&#34;%d&#34;,&#38;base&#41;; printf&#40;&#34;digite a altura&#34;&#41;; scanf&#40;&#34;%d&#34;,&#38;altura&#41;; printf&#40;&#34;a area do triangulo e: [...]
Não existem posts relacionados.]]></description>
			<content:encoded><![CDATA[<p>Escreva um algoritmo que calcule a área de um triângulo.<br />
 * (estes valores serão fornecidos pelo usuário).</p>
<p><strong>Em C:</strong></p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
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</pre></td><td class="code"><pre class="c" style="font-family:monospace;"><span style="color: #339933;">#include &lt;stdio.h&gt;</span>
&nbsp;
<span style="color: #993333;">int</span> main<span style="color: #009900;">&#40;</span><span style="color: #993333;">int</span> argc<span style="color: #339933;">,</span> <span style="color: #993333;">char</span> <span style="color: #339933;">**</span>argv<span style="color: #009900;">&#91;</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
	<span style="color: #993333;">int</span> base<span style="color: #339933;">,</span> altura<span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;digite a base&quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	scanf<span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;%d&quot;</span><span style="color: #339933;">,&amp;</span>base<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;digite a altura&quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	scanf<span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;%d&quot;</span><span style="color: #339933;">,&amp;</span>altura<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;a area do triangulo e: %d&quot;</span><span style="color: #339933;">,</span>base<span style="color: #339933;">*</span>altura<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
	<span style="color: #b1b100;">return</span> <span style="color: #0000dd;">0</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span></pre></td></tr></table></div>

<p><strong>Em Python:</strong></p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
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</pre></td><td class="code"><pre class="python" style="font-family:monospace;"><span style="color: #808080; font-style: italic;">#!/usr/bin/env python</span>
&nbsp;
<span style="color: #ff7700;font-weight:bold;">def</span> main<span style="color: black;">&#40;</span><span style="color: black;">&#41;</span>:
    base = <span style="color: #008000;">input</span><span style="color: black;">&#40;</span><span style="color: #483d8b;">&quot;digite o valor da base do triangulo: &quot;</span><span style="color: black;">&#41;</span>
    altura = <span style="color: #008000;">input</span><span style="color: black;">&#40;</span><span style="color: #483d8b;">&quot;digite o valor da altura do triangulo: &quot;</span><span style="color: black;">&#41;</span>
    <span style="color: #ff7700;font-weight:bold;">print</span> <span style="color: #483d8b;">&quot;a media aritmetica e: &quot;</span>, <span style="color: black;">&#40;</span>base<span style="color: #66cc66;">*</span>altura<span style="color: black;">&#41;</span>
&nbsp;
<span style="color: #ff7700;font-weight:bold;">if</span> __name__ == <span style="color: #483d8b;">&quot;__main__&quot;</span>:
    main<span style="color: black;">&#40;</span><span style="color: black;">&#41;</span></pre></td></tr></table></div>

<p>qualquer dúvida ou se você quiser propor um algoritmo é só deixar um comentário!</p>
<p>abraço,<br />
até&#8230;</p>
<p>Não existem posts relacionados.</p>]]></content:encoded>
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		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>escreva um algoritmo que leia três notas, calcule e imprima a média aritmética</title>
		<link>http://pseudonerd.com/programacao/escreva-um-algoritmo-que-leia-tres-notas-calcule-e-imprima-a-media-aritmetica-399</link>
		<comments>http://pseudonerd.com/programacao/escreva-um-algoritmo-que-leia-tres-notas-calcule-e-imprima-a-media-aritmetica-399#comments</comments>
		<pubDate>Sun, 03 May 2009 20:50:02 +0000</pubDate>
		<dc:creator>adlersd</dc:creator>
				<category><![CDATA[c]]></category>
		<category><![CDATA[programação]]></category>
		<category><![CDATA[python]]></category>
		<category><![CDATA[algoritmo]]></category>
		<category><![CDATA[C]]></category>

		<guid isPermaLink="false">http://pseudonerd.com/?p=399</guid>
		<description><![CDATA[escreva um algoritmo que leia três notas, calcule e imprima a média aritmética Continuando com a série de posts, onde vou postar alguns algoritimos resolvidos em linguagem C e também em python. escreva um algoritmo que leia três notas, calcule e imprima a média aritmética. Em C: 1 2 3 4 5 6 7 8 [...]
Não existem posts relacionados.]]></description>
			<content:encoded><![CDATA[<p>escreva um algoritmo que leia três notas, calcule e imprima a média aritmética</p>
<p>Continuando com a série de posts, onde vou postar alguns algoritimos resolvidos em linguagem C e também em python.</p>
<blockquote><p><strong>escreva um algoritmo que leia três notas, calcule e imprima a média aritmética.</strong></p></blockquote>
<p><strong>Em C:</strong></p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
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</pre></td><td class="code"><pre class="c" style="font-family:monospace;"><span style="color: #339933;">#include &lt;stdio.h&gt;</span>
&nbsp;
<span style="color: #993333;">int</span> main<span style="color: #009900;">&#40;</span><span style="color: #993333;">int</span> argc<span style="color: #339933;">,</span> <span style="color: #993333;">char</span> <span style="color: #339933;">**</span>argv<span style="color: #009900;">&#91;</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
	<span style="color: #993333;">float</span> nota1<span style="color: #339933;">,</span>nota2<span style="color: #339933;">,</span>nota3<span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;digite a primeira nota: &quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	scanf<span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;%f&quot;</span><span style="color: #339933;">,&amp;</span>nota1<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;digite a segunda nota: &quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	scanf<span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;%f&quot;</span><span style="color: #339933;">,&amp;</span>nota2<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;digite a terceira nota: &quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	scanf<span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;%f&quot;</span><span style="color: #339933;">,&amp;</span>nota3<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;a media aritmetica e: %f&quot;</span><span style="color: #339933;">,</span><span style="color: #009900;">&#40;</span>nota1<span style="color: #339933;">+</span>nota2<span style="color: #339933;">+</span>nota3<span style="color: #009900;">&#41;</span><span style="color: #339933;">/</span><span style="color: #0000dd;">3</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #b1b100;">return</span> <span style="color: #0000dd;">0</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span></pre></td></tr></table></div>

<p><strong>Em Python:</strong></p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
2
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10
</pre></td><td class="code"><pre class="python" style="font-family:monospace;"><span style="color: #808080; font-style: italic;">#!/usr/bin/env python</span>
&nbsp;
<span style="color: #ff7700;font-weight:bold;">def</span> main<span style="color: black;">&#40;</span><span style="color: black;">&#41;</span>:
    nota1 = <span style="color: #008000;">input</span><span style="color: black;">&#40;</span><span style="color: #483d8b;">&quot;digite a primeira nota: &quot;</span><span style="color: black;">&#41;</span>
    nota2 = <span style="color: #008000;">input</span><span style="color: black;">&#40;</span><span style="color: #483d8b;">&quot;digite a segunda nota: &quot;</span><span style="color: black;">&#41;</span>
    nota3 = <span style="color: #008000;">input</span><span style="color: black;">&#40;</span><span style="color: #483d8b;">&quot;digite a terceira nota: &quot;</span><span style="color: black;">&#41;</span>
    <span style="color: #ff7700;font-weight:bold;">print</span> <span style="color: #483d8b;">&quot;a media aritmetica e: &quot;</span>, <span style="color: black;">&#40;</span>nota1+nota2+nota3<span style="color: black;">&#41;</span>/<span style="color: #ff4500;">3</span>
&nbsp;
<span style="color: #ff7700;font-weight:bold;">if</span> __name__ == <span style="color: #483d8b;">&quot;__main__&quot;</span>:
    main<span style="color: black;">&#40;</span><span style="color: black;">&#41;</span></pre></td></tr></table></div>

<p>qualquer dúvida ou se você quiser propor um algoritmo é só deixar um comentário!</p>
<p>abraço,<br />
até&#8230;</p>
<p>Não existem posts relacionados.</p>]]></content:encoded>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>escreva um algoritmo que leia dois números inteiros e imprima a soma e o produto</title>
		<link>http://pseudonerd.com/programacao/escreva-um-algoritmo-que-leia-dois-numeros-inteiros-e-imprima-a-soma-e-o-produto-390</link>
		<comments>http://pseudonerd.com/programacao/escreva-um-algoritmo-que-leia-dois-numeros-inteiros-e-imprima-a-soma-e-o-produto-390#comments</comments>
		<pubDate>Thu, 30 Apr 2009 15:09:34 +0000</pubDate>
		<dc:creator>adlersd</dc:creator>
				<category><![CDATA[c]]></category>
		<category><![CDATA[programação]]></category>
		<category><![CDATA[python]]></category>
		<category><![CDATA[algoritmo]]></category>
		<category><![CDATA[C]]></category>

		<guid isPermaLink="false">http://pseudonerd.com/?p=390</guid>
		<description><![CDATA[Esse é o primeiro post de uma série, onde vou postar alguns algoritimos resolvidos em linguagem C e também em python. escreva um algoritmo que leia dois números inteiros e imprima a soma e o produto. Em C: 1 2 3 4 5 6 7 8 9 10 11 12 13 #include &#60;stdio.h&#62; &#160; int [...]
Não existem posts relacionados.]]></description>
			<content:encoded><![CDATA[<p>Esse é o primeiro post de uma série, onde vou postar alguns algoritimos resolvidos em linguagem C e também em python.</p>
<blockquote><p><strong>escreva um algoritmo que leia dois números inteiros e imprima a soma e o produto.</strong></p></blockquote>
<p><strong>Em C:</strong></p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
2
3
4
5
6
7
8
9
10
11
12
13
</pre></td><td class="code"><pre class="c" style="font-family:monospace;"><span style="color: #339933;">#include &lt;stdio.h&gt;</span>
&nbsp;
<span style="color: #993333;">int</span> main<span style="color: #009900;">&#40;</span><span style="color: #993333;">int</span> argc<span style="color: #339933;">,</span> <span style="color: #993333;">char</span> <span style="color: #339933;">**</span>argv<span style="color: #009900;">&#91;</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
	<span style="color: #993333;">int</span> numero1<span style="color: #339933;">,</span>numero2<span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;Digite o primeiro numero: &quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	scanf<span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;%d&quot;</span><span style="color: #339933;">,</span> <span style="color: #339933;">&amp;</span>numero1<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;Digite o segundo numero: &quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	scanf<span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;%d&quot;</span><span style="color: #339933;">,</span> <span style="color: #339933;">&amp;</span>numero2<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;O resultado da soma e: %d<span style="color: #000099; font-weight: bold;">\n</span>&quot;</span><span style="color: #339933;">,</span>numero1<span style="color: #339933;">+</span>numero2<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000066;">printf</span><span style="color: #009900;">&#40;</span><span style="color: #ff0000;">&quot;O resultado do produto e: %d<span style="color: #000099; font-weight: bold;">\n</span>&quot;</span><span style="color: #339933;">,</span>numero1<span style="color: #339933;">*</span>numero2<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
	<span style="color: #b1b100;">return</span> <span style="color: #0000dd;">0</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span></pre></td></tr></table></div>

<p><strong>Em Python:</strong></p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
2
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</pre></td><td class="code"><pre class="python" style="font-family:monospace;"><span style="color: #808080; font-style: italic;">#!/usr/bin/env python</span>
&nbsp;
<span style="color: #ff7700;font-weight:bold;">def</span> main<span style="color: black;">&#40;</span><span style="color: black;">&#41;</span>:
    numero1 = <span style="color: #008000;">input</span><span style="color: black;">&#40;</span><span style="color: #483d8b;">&quot;Digite o primeiro numero: &quot;</span><span style="color: black;">&#41;</span>
    numero2 = <span style="color: #008000;">input</span><span style="color: black;">&#40;</span><span style="color: #483d8b;">&quot;Digite o segundo numero: &quot;</span><span style="color: black;">&#41;</span>
    <span style="color: #ff7700;font-weight:bold;">print</span> <span style="color: #483d8b;">&quot;O resultado da soma e:&quot;</span> , numero1+numero2
    <span style="color: #ff7700;font-weight:bold;">print</span> <span style="color: #483d8b;">&quot;O resultado do produto e:&quot;</span> , numero1<span style="color: #66cc66;">*</span>numero2
&nbsp;
<span style="color: #ff7700;font-weight:bold;">if</span> __name__ == <span style="color: #483d8b;">&quot;__main__&quot;</span>:
    main<span style="color: black;">&#40;</span><span style="color: black;">&#41;</span></pre></td></tr></table></div>

<p>qualquer dúvida ou se você quiser propor um algoritmo é só deixar um comentário!</p>
<p>abraço,<br />
até&#8230;</p>
<p>Não existem posts relacionados.</p>]]></content:encoded>
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		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Depurando erros com php e mysql</title>
		<link>http://pseudonerd.com/php/depurando-erros-com-php-e-mysql-313</link>
		<comments>http://pseudonerd.com/php/depurando-erros-com-php-e-mysql-313#comments</comments>
		<pubDate>Mon, 05 Jan 2009 17:25:25 +0000</pubDate>
		<dc:creator>adlersd</dc:creator>
				<category><![CDATA[mysql]]></category>
		<category><![CDATA[php]]></category>
		<category><![CDATA[programação]]></category>
		<category><![CDATA[mysql_errno()]]></category>
		<category><![CDATA[mysql_error()]]></category>

		<guid isPermaLink="false">http://pseudonerd.com/?p=313</guid>
		<description><![CDATA[Quando você está trabalhando com banco de dados, nesse caso Php e MySQL é muito útil para o desenvolvedor obter informações nais detalhadas sobre o problema, de forma que o problema fique mais explícito, ficando mais fácil arrumá-lo. Você pode utilizar o mysql_error() e o mysql_errno() para obter a mensagem de erro do mysql e [...]
Não existem posts relacionados.]]></description>
			<content:encoded><![CDATA[<p>Quando você está trabalhando com banco de dados, nesse caso Php e MySQL é muito útil para o desenvolvedor obter informações nais detalhadas sobre o problema, de forma que o problema fique mais explícito, ficando mais fácil arrumá-lo.</p>
<p>Você pode utilizar o <a href="http://br.php.net/mysql_error">mysql_error()</a> e o <a href="http://br.php.net/mysql_errno">mysql_errno()</a> para obter a mensagem de erro do mysql e colocá-la na tela para você.</p>
<p>mysql_error() -&gt; Retorna o texto da mensagem de erro da operação MySQL anterior.</p>
<p>mysql_errno() -&gt; Retorna o valor numérico da mensagem de erro da operação MySQL anterior.</p>
<p>Um exemplo de como utilizar o mysql_error():</p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
</pre></td><td class="code"><pre class="php" style="font-family:monospace;"><span style="color: #990000;">mysql_connect</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">&quot;localhost&quot;</span><span style="color: #339933;">,</span> <span style="color: #0000ff;">&quot;username&quot;</span><span style="color: #339933;">,</span> <span style="color: #0000ff;">&quot;password&quot;</span><span style="color: #009900;">&#41;</span> or <span style="color: #990000;">die</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">mysql_error</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span></pre></td></tr></table></div>

<p>O exemplo abaixo retornará um erro se houver um problema de conexão com seu banco de dados MySQL:</p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
</pre></td><td class="code"><pre class="bash" style="font-family:monospace;"><span style="color: #007800;">$valor</span> = mysql_query<span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #007800;">$query</span><span style="color: #7a0874; font-weight: bold;">&#41;</span> or die<span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #ff0000;">&quot;Ocorreu um erro no MySQL.&amp;lt;br /&amp;gt;Query utilizada: &quot;</span> . <span style="color: #007800;">$your_query</span> . <span style="color: #ff0000;">&quot;&amp;lt;br /&amp;gt; Erro: (&quot;</span> . mysql_errno<span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #7a0874; font-weight: bold;">&#41;</span> . <span style="color: #ff0000;">&quot;) &quot;</span> . mysql_error<span style="color: #7a0874; font-weight: bold;">&#40;</span><span style="color: #7a0874; font-weight: bold;">&#41;</span><span style="color: #7a0874; font-weight: bold;">&#41;</span></pre></td></tr></table></div>

<p>abraço,<br />
até&#8230;</p>
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		<title>formatando data em uma maskedtextbox</title>
		<link>http://pseudonerd.com/programacao/formatando-data-em-uma-maskedtextbox-156</link>
		<comments>http://pseudonerd.com/programacao/formatando-data-em-uma-maskedtextbox-156#comments</comments>
		<pubDate>Fri, 18 Jul 2008 17:04:40 +0000</pubDate>
		<dc:creator>adlersd</dc:creator>
				<category><![CDATA[dotnet]]></category>
		<category><![CDATA[programação]]></category>
		<category><![CDATA[vb]]></category>
		<category><![CDATA[DataBindings.Add]]></category>
		<category><![CDATA[MaskedtextBox]]></category>

		<guid isPermaLink="false">http://limitado.wordpress.com/?p=82</guid>
		<description><![CDATA[Por algumas razões não poderia utilizar o DateTimePicker, optando assim por uma MaskedTextBox, conforme o código abaixo, ao inserir a data no banco de dados, nenhum problema é encontrado como esperado. 1 2 3 4 5 6 7 8 ' 'dtpDataNascimento ' Me.dtpDataNascimento.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle Me.dtpDataNascimento.Location = New System.Drawing.Point&#40;687, 128 &#41; Me.dtpDataNascimento.Mask = &#34;00/00/0000&#34; Me.dtpDataNascimento.Name [...]
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			<content:encoded><![CDATA[<p>Por algumas razões não poderia utilizar o DateTimePicker, optando assim por uma MaskedTextBox, conforme o código abaixo, ao inserir a data no banco de dados, nenhum problema é encontrado como esperado.</p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
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</pre></td><td class="code"><pre class="vbnet" style="font-family:monospace;"><span style="color: #008080; font-style: italic;">'</span>
<span style="color: #008080; font-style: italic;">'dtpDataNascimento</span>
<span style="color: #008080; font-style: italic;">'</span>
<span style="color: #FF8000;">Me</span>.<span style="color: #0000FF;">dtpDataNascimento</span>.<span style="color: #0000FF;">BorderStyle</span> <span style="color: #008000;">=</span> System.<span style="color: #0000FF;">Windows</span>.<span style="color: #0000FF;">Forms</span>.<span style="color: #0000FF;">BorderStyle</span>.<span style="color: #0000FF;">FixedSingle</span>
<span style="color: #FF8000;">Me</span>.<span style="color: #0000FF;">dtpDataNascimento</span>.<span style="color: #0000FF;">Location</span> <span style="color: #008000;">=</span> <span style="color: #FF8000;">New</span> System.<span style="color: #0000FF;">Drawing</span>.<span style="color: #0000FF;">Point</span><span style="color: #000000;">&#40;</span><span style="color: #FF0000;">687</span>, <span style="color: #FF0000;">128</span> <span style="color: #000000;">&#41;</span>
<span style="color: #FF8000;">Me</span>.<span style="color: #0000FF;">dtpDataNascimento</span>.<span style="color: #0000FF;">Mask</span> <span style="color: #008000;">=</span> <span style="color: #808080;">&quot;00/00/0000&quot;</span>
<span style="color: #FF8000;">Me</span>.<span style="color: #0000FF;">dtpDataNascimento</span>.<span style="color: #0000FF;">Name</span> <span style="color: #008000;">=</span> <span style="color: #808080;">&quot;dtpDataNascimento&quot;</span>
<span style="color: #FF8000;">Me</span>.<span style="color: #0000FF;">dtpDataNascimento</span>.<span style="color: #0000FF;">Size</span> <span style="color: #008000;">=</span> <span style="color: #FF8000;">New</span> System.<span style="color: #0000FF;">Drawing</span>.<span style="color: #0000FF;">Size</span><span style="color: #000000;">&#40;</span><span style="color: #FF0000;">105</span>, <span style="color: #FF0000;">20</span><span style="color: #000000;">&#41;</span></pre></td></tr></table></div>

<p>Mas, ao resgatar a data de volta ao campo, para manutenção, os zeros desaparecem. Ex.: data no banco de dados  <strong>1944-08-27</strong>, mas no MaskeTextBox ela é exibida como <strong>27/81/994</strong>_.</p>
<p>o problema é a formatação da data, formatarmos como o código abaixo:</p>

<div class="wp_syntax"><table><tr><td class="line_numbers"><pre>1
</pre></td><td class="code"><pre class="vbnet" style="font-family:monospace;"><span style="color: #FF8000;">Me</span>.<span style="color: #0000FF;">dtpDataNascimento</span>.<span style="color: #0000FF;">DataBindings</span>.<span style="color: #0000FF;">Add</span><span style="color: #000000;">&#40;</span><span style="color: #808080;">&quot;Text&quot;</span>, dataset, <span style="color: #808080;">&quot;nome_do_campo&quot;</span>, <span style="color: #0600FF;">True</span>, DataSourceUpdateMode.<span style="color: #0000FF;">OnValidation</span>, <span style="color: #808080;">&quot;&quot;</span>, <span style="color: #808080;">&quot;dd/MM/yyyy&quot;</span><span style="color: #000000;">&#41;</span></pre></td></tr></table></div>

<p>abraço,<br />
até&#8230;</p>
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