Validation ASP.Net Tutorial

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  4. Using the ValidationGroup property (VB)
<%@ Page Language="VB" %>


    Validation Groups


    
    

        

St. Louis .NET User Group


        Username:
          Password:
                 TextMode="Password"> 
                 ValidationGroup="Login" />
            
                         ErrorMessage="* You must submit a username!"
             ControlToValidate="TextBox1" ValidationGroup="Login">
            
            
                         ErrorMessage="* You must submit a password!"
             ControlToValidate="TextBox2" ValidationGroup="Login">
            
        
        

Sign-up for the newsletter!


        Email:
         
                 ValidationGroup="Newsletter" /> 
            
                         Runat="server"
             ErrorMessage="* You must submit a correctly formatted email address!"
             ControlToValidate="TextBox3" ValidationGroup="Newsletter"
             ValidationExpression="\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*">
            
            
                         ErrorMessage="* You forgot your email address!"
             ControlToValidate="TextBox3" ValidationGroup="Newsletter">