RangeValidator for integer type value
<%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>Untitled Page</title> </head> <body> <form id="form1" runat="server"> <div> <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label> <asp:TextBox ID="txtValue" runat="server"></asp:TextBox> <asp:Button ID="Button1" runat="server" Text="Submit" /> <asp:RangeValidator ControlToValidate="txtValue" ErrorMessage="RangeValidator" ID="RangeValidator1" MaximumValue="20" MinimumValue="10" runat="server" Type="Integer">Between 10 and 20 please</asp:RangeValidator> </div> </form> </body> </html>