Q: only number in a textbox

[Guest]

Hello,
I am trying to allow only number in a textbox. I need to put it into
database as double. So Convert.ToDouble should not fail. How should I do this?
Thanks,
Jim.

 

[Cliff Harris]

I would add a Regular Expression validator control and then write (or find)
some regex that would validate a double)

-Cliff

 

[Kevin Spencer]

Use validation, and make sure that the value in the field is numeric. Any
numeric value can be converted to a double.

--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
What You Seek Is What You Get.

 

[Guest]

Just create a CompareValidation control set the type to Double and the
Operator to DataTypeCheck

<asp:CompareValidator id="CompareValidator1" runat="server"
ErrorMessage="CompareValidator" Type="Double"
Operator="DataTypeCheck"></asp:CompareValidator>

 

[Steve C. Orr [MVP, MCSD]]

This article shows how to use javascript to limit numeric entry only in a
textbox:
http://SteveOrr.net/articles/InheritAndExtend.aspx