Web Forms :: Create A Validation With A Click

Jun 15, 2010

I have a problem with the validation of a multiline textbox, I want that only validate it when click a button but I don't know how do it.

<
asp:TextBox
AutoPostBack="false"
TextMode="MultiLine"
Rows="3"
Width="350px"
runat="server"
ID="SiteNote"></asp:TextBox>
<asp:RegularExpressionValidator
ID="SiteNote_validator"
runat="server"
ErrorMessage="ERROR"
ControlToValidate="SiteNote"></asp:RegularExpressionValidator>

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