📄 checkboxlistautopostback.aspx

📁 asp.net技术内幕的书配源码

💻 ASPX

字号:

<Script Runat="Server">

Sub chklFavoriteFoods_SelectedIndexChanged( s As Object, e As EventArgs )
  Dim itmFood As ListItem
  Dim strList As String

  For each itmFood in chklFavoriteFoods.Items
    If itmFood.Selected Then
      strList &= "<li>" & itmFood.Text
    End If
  Next
  lblFoodList.Text = strList
End Sub

</Script>

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

<form Runat="Server">

<asp:CheckBoxList
  ID="chklFavoriteFoods"
  AutoPostBack="True"
  OnSelectedIndexChanged="chklFavoriteFoods_SelectedIndexChanged"
  Runat="Server">
  <asp:ListItem Text="Pizza" />
  <asp:ListItem Text="Hamburgers" Selected="True"/>
  <asp:ListItem Text="Pasta"/>
</asp:CheckBoxList>

<hr>

You like to eat:
<asp:Label
  ID="lblFoodList"
  Runat="Server" />

</form>

</body>
</html>

⌨️ 快捷键说明

复制代码 Ctrl + C

搜索代码 Ctrl + F

全屏模式 F11

切换主题 Ctrl + Shift + D

显示快捷键 ?

增大字号 Ctrl + =

减小字号 Ctrl + -