一个简单的.net 给ListBox 添加双击事件的例子,希望能帮助需要的人
 
.aspx 页面代码:

    <form id="form1" runat="server">
 <asp:ListBox ID="ListBox1" SelectionMode="Multiple" runat="server" Width="83px">
                        <asp:ListItem>a</asp:ListItem>
                        <asp:ListItem>b</asp:ListItem>
                    </asp:ListBox>
                   
                    <asp:ListBox ID="ListBox2" runat="server" Width="83px">
                    </asp:ListBox>
                    <input id="Dbclickflag" type="hidden" value="false" name="Dbclickflag" runat="server">
                    <script language="vbscript">
                    option explicit
                    sub ListBox1_ondblclick()
                    Form1.Dbclickflag.value="true"
                    Form1.submit()
                    end sub
                    </script>
 </form1>
 
 
.aspx.cs 页面
        if (IsPostBack)
        {
            if (Dbclickflag.Value == "true")
             {
                       Dbclickflag.Value =""; //清空设定的值
                        。
                        。
                        。  //此处写 双击后要实现的操作就可以
 
              }
        }