RadTextBox EmptyMessage unexpected behaviour

[Craig Wallace]

Hi,

I have a simple RadTextBox and button as follows:

<telerik:RadTextBox ID="txtForename" runat="server" EmptyMessage="<first name>"></telerik:RadTextBox>  <asp:button ID="btnGo" runat="server" text="Go" />

The problem is that .Net framework request validation is invoked on the value of EmptyMessage, as when I click the button I get:

Server Error in '/' Application.
--------------------------------------------------------------------------------

A potentially dangerous Request.Form value was detected from the client (Energy1_txtForename_text="<first name>").

This is happening because of the <> in the EmptyMessage, but I thought no actual value would be stored or passed with the input?  How can I work around this without turning off request validation, but still retain my nice EmptyMessage?

Thanks.

Craig

[hari]

Hi Craig,

You can write client-side javascript validation for checking special characters on onclick of btnGo.

[Craig Wallace]

Hi hari,

I think you misunderstand.  I want the special characters to exist in the EmtpyMessage, but surely they should not be validated in any way?

Craig

[hari]

Hi Craig,

Then u have to use validateRequest=false in @page directive. This is one way to work around. But is not recommended. See the link http://www.asp.net/learn/whitepapers/request-validation.

[Craig Wallace]

That is what I mean.  The EmptyMessage should not be validated.  Surely there is way to avoid this without having to disable request validation?

Craig