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	<title>code for asp.net &#187; Textbox numbers only</title>
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	<description>More about asp.net ajax silverlight MVC</description>
	<lastBuildDate>Tue, 02 Mar 2010 10:17:59 +0000</lastBuildDate>
	
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			<item>
		<title>How to make Asp.net textbox allow numbers only</title>
		<link>http://www.codeforasp.net/how-to-make-asp-net-textbox-allow-numbers-only.html</link>
		<comments>http://www.codeforasp.net/how-to-make-asp-net-textbox-allow-numbers-only.html#comments</comments>
		<pubDate>Thu, 04 Feb 2010 12:31:51 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Asp.net]]></category>
		<category><![CDATA[Javascript]]></category>
		<category><![CDATA[Regular Expression for numbers]]></category>
		<category><![CDATA[Textbox numbers only]]></category>

		<guid isPermaLink="false">http://www.codeforasp.net/?p=620</guid>
		<description><![CDATA[Using RegularExpressionValidator
&#60;asp:TextBox ID=&#8221;TextBox1&#8243; runat=&#8221;server&#8221;&#62;&#60;/asp:TextBox&#62;
&#60;asp:RegularExpressionValidator runat=&#8221;server&#8221; ControlToValidate=&#8221;TextBox1&#8243;
ErrorMessage=&#8221;Enter a valid number&#8221; ValidationExpression=&#8220;^\d$&#8220;&#62;
&#60;/asp:RegularExpressionValidator&#62;
using Javascript
With Alert Message
&#60;script type=&#8221;text/javascript&#8221;&#62;
function isNumberKey(evt)
{
var charCode = (evt.which) ? evt.which : event.keyCode
if (charCode &#62; 31 &#38;&#38; (charCode &#60; 48 &#124;&#124; charCode &#62; 57) )
{
alert(&#8221;Accept Digits&#8221;);
return false;
}
else
{
return true;
}
}
&#60;/script&#62;
FirstMethod:&#60;asp:TextBox ID=&#8221;txtAdvance&#8221; runat=&#8221;server&#8221; onkeypress=&#8221;return isNumberKey(event)&#8221; &#62;&#60;/asp:TextBox&#62;
Second Method: protected void Page_Load(object sender, EventArgs e)
{
txtAdvance.Attributes.Add(&#8221;onkeypress&#8220;, &#8220;return isNumberKey(event)&#8221;);
}
Without Alert Message:
&#60;script type=&#8221;text/javascript&#8221;&#62;
function isNumberKey(evt)
{
var [...]]]></description>
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