single validator function to multiple control in multiple form in asp.net

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I want's to make a function/subroutine which check for required field and allow control to enter only number or alphabet in asp.net web application.

Using function i Want to pass all controls of .aspx page one by one to function on submit button which is used for multiple form.

If u have any suggestion about validation controls of asp.net/ ajax/ aspx control which solve above problem ,
please tell me.

Posted 31-Jan-10 18:11pm

Rupal Sathvara

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Christian Graus · Answer 1 · 2010-01-31T18:35:00

Solution 1

Use custom validators and have them all call a function that's in a common JS file.

Posted 31-Jan-10 18:35pm

Christian Graus

evergreen501 · Answer 2 · 2010-01-31T19:45:00

The CustomValidator control provides user-defined validation function for an input control. There are two types of validation
1. Server side
2. Client side
Here is the solution for your problem
Insert a custom validator control in the web page and assign the following properties
<asp:CustomValidator runat=server
controltovalidate="txtName"
errormessage="ID is not valid"
OnServerValidate="CheckID" />

Write the following code in code-behind of the web page for validation
public void CheckID(Object source, ServerValidateEventArgs args)
{
args.IsValid = true;
foreach (char chr in args.Value.ToString())
{
if (char.IsDigit(chr) == false && char.IsLetter(chr) == false)
{
args.IsValid = false;
return;
}
}
}

regards
Kumaran