Mega Code Archive

 
Categories / ASP.Net / Validation By Control
 

Validate control on lost focus (C#)

<%@ Page Language="C#" %> <html xmlns="http://www.w3.org/1999/xhtml" > <head id="Head1" runat="server">     <title>Show SetFocusOnError</title> </head> <body>     <form id="form1" runat="server">     <div>              <asp:Label         id="lblFirstName"         Text="First Name"         AssociatedControlID="txtFirstName"         Runat="server" />     <br />         <asp:TextBox         id="txtFirstName"         Runat="server" />     <asp:RequiredFieldValidator         id="reqFirstName"         ControlToValidate="txtFirstName"         Text="(Required)"         SetFocusOnError="true"          Runat="server" />              <br /><br />              <asp:Label         id="lblLastName"         Text="Last Name"         AssociatedControlID="txtLastName"         Runat="server" />     <br />         <asp:TextBox         id="txtLastname"         Runat="server" />     <asp:RequiredFieldValidator         id="reqLastName"         ControlToValidate="txtLastName"         Text="(Required)"          SetFocusOnError="true"         Runat="server" />               <br /><br />            <asp:Button         id="btnSubmit"         Text="Submit"         Runat="server" />        </div>     </form> </body> </html>