validating data in gridview using c#.net

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how to validate keypress in gridview

for ex i have column named no.of days in gridView there i have to give only numbers upto certain limit..how can i validate this by using keypress event

Posted 10-Jul-12 1:19am

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Vani Kulkarni · Answer 1 · 2012-07-10T01:33:00

Have you tried adding regex validators or custom validators in the gridview. Even Javascript can help you achieve your requirement. See below:

JavaScript

<script type="text/javascript" language=javascript>
function keyDownNumber()
{
    var key;
    if(navigator.appName == 'Microsoft Internet Explorer')
        key = event.keyCode;
    else
        key = event.which

    if ( !(key >= 48 && key <= 57) && key != 8 && key != 46 && key != 36 && key != 37)
    {
        event.returnValue = false;
    }
}
</script>

ASP.NET

<Columns>
<asp:templatefield headertext="Days">
        <itemtemplate>
          <asp:TextBox id="Days" text='<% # eval("Days") %>' runat="server"
            onkeypress="keyDownNumber()" >
           </asp:TextBox>
       </itemtemplate>
 </asp:templatefield>
</Columns>

For DataGridView you can refer following links:

datagridview-data-entry-validation/[^]
Data Entry Validation in DataGridView[^]
datagridview-cell-validation[^]