RequiredFieldValidator is used to verify for empty values in check box. If entered value id empty you can not proceed and will prompt to enter a value.
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" >
<html>
<body>
<form id="Form1" runat="server">
<h4>
Check for Require Field</h4>
<br />
Enter a value:
<asp:TextBox ID="txtRequiredField" runat="server"></asp:TextBox>
<br />
<br />
<asp:Button ID="Button1" Text="Check" runat="server" />
<br />
<br />
<asp:RequiredFieldValidator ID="MyRequiredFieldValidator" ControlToValidate="txtRequiredField"
ErrorMessage="Please enter a value to proceed." runat="server" />
</form>
</body>
</html>
0 comments:
Post a Comment