Hi,

I am having this problem with RegularExpressionValidator placed inside tableCell:

<asp:RegularExpressionValidator runat="server" ControlToValidate="txtboxEmail"
                     ErrorMessage="error" ValidationExpression="^[0-9a-zA-Z]$"  />

 When i try to remove it form the code my page goes blank. There are no errors during built and runtime.

I also can't comment the RegularExpressionValidator block.

Apart from this problem RegularExpressionValidator works fine.

I am trying to remove it to check another problem which i think RegularExpressionValidator might be causing.

Does anyone know why i can't remove it ?