ASP.NET列表框 [英] ASP.NET List Box

问题描述

我建立一个网站，其中一个页面具有其中设置的名称将是displayed.There是另一个旁边的框这个box.User应该能够从第一清单中选择几个名字列表框，打一个箭头按钮，做的所有第一框选定的名称会出现在第二个盒子。
任何人都可以请帮我对如何做到这一点？

I am creating a web site in which one page has a list box in which set of names will be displayed.There s another box next to this box.User should be able to select few names from the first list,hit a arrow button,doing which all the selected names of first box will appear on the second box. Can anyone please help me out as to how to do this??

推荐答案

假设的ID的>>按钮btnLoad其Click事件处理程序是btnLoad_Click

Suppose that id of the ">>" button is btnLoad and its click event handler is btnLoad_Click

LST1是第一个列表框和LST2是第二个列表框：

lst1 is First List box and lst2 is Second list box:

    protected void btnLoad_Click(object sender, EventArgs e)
    {
        lst1.GetSelectedIndices();
        foreach (int item in lst1.GetSelectedIndices())
        {
            lst2.Items.Add(lst1.Items[item]);    
        }
    }

请确保两个列表框应该有

be sure that both list boxes should have

SelectionMode="Multiple"

或

         protected void btnLoad_Click(object sender, EventArgs e)
     {
        lst1.GetSelectedIndices();
        foreach (int item in lst1.GetSelectedIndices())
        {
            var tempItem = lst1.Items[item];
            tempItem.Selected = false;
            lst2.Items.Add(tempItem);    
        }
     }

与

SelectionMode="Single"

希望它能帮助

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