📄 textboxautopostback.aspx

📁 asp.net技术内幕的书配源码

💻 ASPX

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<Script Runat="Server">

Sub ChangeBox1( s As Object, e As EventArgs )
  txtBox1.Text = strReverse( txtBox1.Text )
  CheckWin
End Sub

Sub changeBox3( s As Object, e As EventArgs )
  txtBox3.Text = strReverse( txtBox3.Text )
  CheckWin
End Sub

Sub CheckWin
  If txtBox1.Text = "Apple" _
    And txtBox2.Text="Apple" _
      And txtBox3.Text="Apple" Then
        lblMessage.Text = "You Win!"
  End If
End Sub

</Script>

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

<form Runat="Server">

Enter the word Apple into all three TextBoxes:

<p>
<asp:TextBox
  ID="txtBox1"
  AutoPostBack="True"
  onTextChanged="ChangeBox3"
  Runat="Server"/>

<p>
<asp:TextBox
  ID="txtBox2"
  AutoPostBack="True"
  OnTextChanged="ChangeBox1"
  Runat="Server"/>

<p>
<asp:TextBox
  ID="txtBox3"
  AutoPostBack="True"
  OnTextChanged="ChangeBox3"
  Runat="Server"/>

<p>
<asp:Label
  ID="lblMessage"
  Runat="Server" />


</form>

</body>
</html>

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