Allow numericals in text box for an application in ASP.net and C#

[sajitk20]

Dear All, I am making an application using ASP.Net and C#. I have a text box where i require only numerics to be entered.... I have used the RegularExpressionValidator. I there any other way, where we can trap the Ascii key of the key pressed and validate this. Thanks in advance Sajit :)

[Christian Graus]

You can do this using javascript, but you should still use a validator on the server side, just in case. All JS can be defeated.

Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

[sashidhar]

Try this Link It May Help http://rizwanshah.blogspot.com/2008/07/numeric-textbox-aspnet-html-input.html[^]

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[sajitk20]

Dear Sasidhar, Thanks for the fast response. But the msdn link is for a window application. I am sorry, but i am making a web application. Can you throw some light on it. Sajit

[sashidhar]

Again Try Now I modified It

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[sajitk20]

Dear sashidhar, where is the link...?? do i follow the same rizwan blog link... sajit

[sashidhar]

<
script language="javascript">
function KeyCheck(e)
{
var KeyID = (window.event) ? event.keyCode : e.which;
if((KeyID >= 65 && KeyID <= 90) || (KeyID >= 97 && KeyID <= 122) || (KeyID >= 33 && KeyID <= 47) ||
(KeyID >= 58 && KeyID <= 64) || (KeyID >= 91 && KeyID <= 96) || (KeyID >= 123 && KeyID <= 126))
{
return false;
}
return true;
}
</
script>
HTML Text Box
<
input type="text" ID="txt_TextBox" onkeypress="return KeyCheck(event);" runat="server" style="width: 28px" />
ASP.Net TextBox
<asp:TextBox ID="txt_ASPTextBox" runat="server" ></asp:TextBox>
Code Behind for Asp.Net TextBox
txt_ASPTextBox.Attributes.Add("onkeypress","return KeyCheck(event);");

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