如何删除列表框中的多个选定项? [英] How to remove multiple selected items in ListBox?

问题描述

我的窗体包含两个列表框.Listbox1 中包含一些项目，而 listbox2 为空.当我按下表单上的按钮时，应将 listbox1 中的多个选定项目从 Listbox1 中删除并复制到 Listbox2.

My windows form contains two listboxes. Listbox1 contains some items in it and listbox2 is empty. When I press a button on the form, then multiple selected items from listbox1 should be removed from Listbox1 and copied to Listbox2.

我在 listbox1.SelectedItems 上尝试了 foreach 循环，但它只从列表中删除了一项.

I tried with foreach loop on listbox1.SelectedItems but it removes only 1 item from list.

有人有解决方案或代码吗?

Anyone has solution or code for this?

推荐答案

您可以在一个循环中完成所有操作.您应该在 SelectedIndices 上使用简单的 for 并向后循环:

You could do all in a single loop. You should use a simple for and loop backwards on SelectedIndices:

private void button1_Click(object sender, EventArgs e) 
{ 
    for(int x = listBox1.SelectedIndices.Count - 1; x>= 0; x--)
    { 
        int idx = listBox1.SelectedIndices[x];
        listBox2.Items.Add(listBox1.Items[idx]); 
        listBox1.Items.RemoveAt(idx);
    } 
} 

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