在C#中listbox怎么用鼠标右键选中里边的项后，再弹出右键菜单。

Question

ListView的鼠标单击事件里处理,如果是单击的是右键,则将提前创建好的菜单显示出来即可！

Answer 1

        private void listView1_MouseUp(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                contextMenuStrip1.Show(Cursor.Position.X,Cursor.Position.Y);
            }
        }

Answer 2

private void listBox1_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                contextMenuStrip1.Show();
            }
        }

Answer 3

listBox1的contextMenuStrip属性指定的话右键直接就出来菜单了吧

Answer 4

if (e.Button == MouseButtons.Right)
            {
                int currentIndex = e.Y / 12;
                if (listBox1.SelectedItem != null && currentIndex != listBox1.SelectedIndex)
                {
                    this.listBox1.SetSelected(listBox1.SelectedIndex, false);
                }
                this.listBox1.SetSelected(currentIndex, true);
            }
这段代码是右键选中楼上的说的对，在listBox1的contextMenuStrip属性设置，就可以出来了

Answer 5

没写事件名private void listBox1_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                int currentIndex = e.Y / 12;
                if (listBox1.SelectedItem != null && currentIndex != listBox1.SelectedIndex)
                {
                    this.listBox1.SetSelected(listBox1.SelectedIndex, false);
                }
                this.listBox1.SetSelected(currentIndex, true);
            }
        }