求助一个ListView的问题， 先谢了

Question

之所以new listview  是因为listview数目不确定的， 不能固定用一或N个

Answer 1

listview.SelectedItems[0] //获得当前选中的item,单击右键时会自动选中鼠标下方的item.

Answer 2

 ListViewItem item;//记录选中哪个itemprivate void listView_tec_MouseClick(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                if (listView_tec.SelectedItems.Count > 0)//选中item显示删除
                {
                    Point point = this.PointToClient(listView.PointToScreen(new Point(e.X, e.Y)));
                    item = listView.SelectedItems[0];
                    contextMenuStrip.Show(this,point);
                }
                else
                {
                    contextMenuStrip.Hide();
                }
            }
        }

Answer 3

 ListViewItem item;//记录选中哪个item
 
private void listView_MouseClick(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                if (listView.SelectedItems.Count > 0)//选中item显示删除
                {
                    Point point = this.PointToClient(listView.PointToScreen(new Point(e.X, e.Y)));
                    item = listView.SelectedItems[0];
                    contextMenuStrip.Show(this,point);
                }
                else
                {
                    contextMenuStrip.Hide();
                }
            }
        }

Answer 4

没注意你是new的，加个listView.MouseClick+=new MouseEventHandler(listView_MouseClick);