列表框多个选定项 [英] Listbox multiple selected items

问题描述

我正在使用选择模式为多个的列表框.

I am using Listbox with selection mode as multiple.

<asp:ListBox ID="ListBox1" SelectionMode="Multiple"  runat="server">
        <asp:ListItem>one</asp:ListItem>
        <asp:ListItem>two</asp:ListItem>
        <asp:ListItem>thr</asp:ListItem>
        </asp:ListBox>

下面的代码在列表框中显示选定的项目.但是，如何在列表框中显示多个选定的项目.

The following code displays the selected item in Listbox. But how do i display multiple selected items in the listbox.

protected void Button1_Click(object sender, EventArgs e)
    {
// let the array srr be the selected items
        string[] srr = { "one", "thr" };
        foreach (string item in srr)
        {
            ListBox1.SelectedValue = item;
        }
    }

谢谢.

推荐答案

protected void Button1_Click(object sender, EventArgs e)
{
 string[] srr = { "one", "thr" };
 foreach (string item in srr)
 {
 for (int intItem = 0; intItem <= ListBox1.Items.Count - 1; intItem++) {
      if(ListBox1.Items(intItem).Text == item){
            ListBox1.Items(intItem).Selected = true;
      }
    }
}

检查每个项目的选定属性.看一下此链接上的示例:
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.listcontrol.items.aspx [

Check the selected property of each item. Have a look at the example at this link:
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.listcontrol.items.aspx[^]

Good luck!

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