Cross-page posting Example code TextBox: <asp:textbox id="TextBox1" runat="server" /> <asp:RequiredFieldValidator ControlToValidate="TextBox1" EnableClientScript="True"        text="TextBox content is empty" runat="server" /> ... <osb:SuperButton PostBackUrl="ex_target.aspx" isSubmit="true" CausesValidation="true" Text="Submit" ... /> Download this working example.

This textbox should not be empty when submit to the target page: TextBox:   Submit to target page

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"The flyout does work great. You have some pretty nifty components I cannot live without. Thank you again very much for your support and timely responses." Jennifer