📄 dropdownlistselected.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 )
  lblSelectedIndex.Text = dropCategory.SelectedIndex
  lblSelectedItem.Text = dropCategory.SelectedItem.Text
End Sub

</Script>

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

<form Runat="Server">

<asp:DropDownList
  ID="dropCategory"
  Runat="Server">
  <asp:ListItem Text="Country Music" />
  <asp:ListItem Text="Rock Music" Selected="True"/>
  <asp:ListItem Text="Classical Music"/>
</asp:DropDownList>

<asp:Button
  Text="Pick A Category!"
  OnClick="Button_Click"
  Runat="Server" />

<hr>

Selected Index:
<asp:Label
  ID="lblSelectedIndex"
  Runat="Server" />

<p>

Selected Item:
<asp:Label
  ID="lblSelectedItem"
  Runat="Server" />

</form>
</body>
</html>

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