由于 PointToScreen，ContextMenuStrip 位置不好

Question

我在 panel2 的 SplitContainer 中有一个 Button。我动态创建了一个 ContextMenuStrip 并附加到此按钮。我想将上下文菜单定位在按钮下方，如图所示

但是我得到的不是那样的

这是我试过的：

private void SelectContentGroup_Click(object sender, EventArgs e) {
    ContextMenuStrip x = selectContentGroup.ContextMenuStrip;
    if (x is null) return;
        // this will show contextmenu near the mouse arrow
        //x.Show(Control.MousePosition);

        // I have tried to get MousePosition and to compare to my button location and Y is a lot of difference, about 200 pixels
        //Console.WriteLine("MousePosition: {0}, ButtonLocation: {1}", Control.MousePosition, PointToScreen(selectContentGroup.Location));
        x.Show(PointToScreen(selectContentGroup.Location));

        // I tried with e.Location also, but none of those points will give the button Left-Bottom position for contextmenu
    }

Answer 1

使用包含控件的方法，调整该控件的高度，使菜单显示在其下方：

x.Show(SelectContentGroup, new Point(0, SelectContentGroup.Height));

我假设 SelectContentGroup 是按钮的名称。

由于 PointToScreen，ContextMenuStrip 位置不好

ContextMenuStrip location is not good because of PointToScreen

c#

contextmenustrip

winforms