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ASP.NET Validator – validate one of the two values

September 17, 2012 - Posted in .NET 4.0, Applications, ASP.NET, Controls, Validation Controls, VS2010 - Permalink

Validate one of the two textbox values Markup page Please enter on of at least one contact point: <asp:CustomValidator ID=”ContactInfoAlert” runat=”server” ErrorMessage=”CustomValidator” OnServerValidate=”CustomValidator_ServerValidate”> </asp:CustomValidator> User email: <asp:TextBox ID=”EmailTbx” runat=”server” ToolTip=”Enter email.” > </asp:TextBox> User phone: <asp:TextBox ID=”PhoneTbx” runat=”server” ToolTip=”Enter phone number.” > </asp:TextBox> <asp:Button ID=”Btn1″ runat=”server” Text=”Next” CausesValidation=”true”/> Click to read more… Code-behind page Protected […]