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I'm try to using validation InputFormRegularExpressionValidator. Code behind

<SharePoint:InputFormTextBox runat="server" id="TitleTB"__designer:bind="ddwrt:DataBind('i',concat('ff1',$Pos),'Value','ValueChanged','ID',ddwrt:EscapeDelims(string(@ID)),'@Title')}"/>
<SharePoint:InputFormRegularExpressionValidator ID="Validator" runat="server"
                         Display="Dynamic" SetFocusOnError="true"
                         ControlToValidate="TitleTB"
                         ValidationExpression="^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]$"
                         ErrorMessage="Enter a valid email address." />

Validation is always fired regardless of the input.

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  • Where is the solve: social.msdn.microsoft.com/Forums/en-US/sharepoint2010general/…
    – IAfanasov
    Commented Jul 2, 2011 at 10:00
  • Since you found the answer, do you mind if we delete this question?
    – Kit Menke
    Commented Jul 28, 2011 at 13:58
  • i think it question be helpfull to other developers
    – IAfanasov
    Commented Aug 4, 2011 at 11:39
  • Oh, I agree it is helpful. I was just asking because you have it duplicated in two places (here and msdn forums). Would you want to post the answer here as well?
    – Kit Menke
    Commented Aug 4, 2011 at 14:05

1 Answer 1

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it was problem with regex. The right is ^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+.[A-Za-z]$ thank to Wayne Fan

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