📄 regularexpressionvalidatorlength.aspx

📁 asp.net技术内幕的书配源码

💻 ASPX

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<Script Runat="Server">

Sub Button_Click( s As Object, e As EventArgs )
  If IsValid Then
    Response.Redirect( "ThankYou.aspx" )
  End If
End Sub

</Script>

<html>
<head><title>RegularExpressionValidatorLength.aspx</title></head>
<body>

<form Runat="Server">

Enter your last name:
<br>(no more than 10 characters)
<br>
<asp:TextBox
  id="txtLastname"
  Columns="50"
  Runat="Server"/>

<asp:RegularExpressionValidator
  ControlToValidate="txtLastname"
  Display="Dynamic"
  Text="Your last name can contain
        a maximum of 10 characters and no spaces!"
  ValidationExpression="\S{0,10}"
  Runat="Server" />
<p>

<asp:Button
  Text="Submit"
  OnClick="Button_Click"
  Runat="Server"/>

</form>

</body>
</html>

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