<%@ Page Language="vb" %>
Validation Control Example
Sub Page_Load()
vsSummary.DisplayMode = ValidationSummaryDisplayMode.List
End Sub
Sub ServerValidation (source As object, args As ServerValidateEventArgs)
Dim RegExVal As New System.Text.RegularExpressions.Regex("^\d{4}$")
If RegExVal.IsMatch(args.Value) Then
args.IsValid = True
Else
args.IsValid = False
End If
End Sub
Validation Control Example
RegularExpressionValidator Control:
Enter a valid 5 or 9-digit zip code
validationexpression="^\d{5}$|^\d{5}-\d{4}$"
errormessage="Not a valid Zip code!"
display="static"
runat="server"/>
RequiredFieldValidator Control:
Enter a login name
display="static"
errormessage="Login cannot be blank!"
runat="server"/>
ValidationSummary Control:
headertext="Page has the following errors: "
showsummary="true"
showmessagebox="false"
runat="server"/>