Validation By Control ASP.Net

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  4. Validate by a Server Validate function (VB net)
<%@ Page Language=VB Debug=true %>

Sub Answer_ServerValidation(source As object, E As ServerValidateEventArgs)
    If E.Value = "VB" or E.Value = "VB.NET" or E.Value = "C#" _
        or E.Value = "C#.NET" or E.Value = "A bunch of others." Then
        E.IsValid = True
    Else
        E.IsValid = False
    End If
End Sub



Using a RegularExpressionValidator Control to Test a Zip Code





What languages can you use with ASP.NET?

    id="txtAnswer" 
    runat=server 
/>
    id="custom9"
    controltovalidate="txtAnswer"
    OnServerValidate="Answer_ServerValidation"
    display="Dynamic"
    font-name="Verdana"
    font-bold="True"
    font-size="10pt"
    runat="server">
    
Incorrect answer please try again!




    id="butOK"
    text="OK"
    type="Submit"
    runat="server"
/>