如何在C＃中使用单选按钮显示不同的上下文菜单条项目？

Question

I have a simple windows form app consisting a button(with contextmenustrip) and two radiobuttons and there are 3 menu items namely process1 , process2 , process3 in the contextmenustrip.

When the button is clicked while radioButton1 is enabled only process1 , process2 should show and when radioButton1 is enabled only process3 should show. How do I do this?

I tried to use the Available method like below but it doesn't work

Button btnSender = (Button)sender;
Point ptLowerLeft = new Point(0, btnSender.Height);
ptLowerLeft = btnSender.PointToScreen(ptLowerLeft);
contextMenuStrip1.Show(ptLowerLeft);
    if (radioButton1.Checked) {
        process1ToolStripMenuItem.Available=true;
        process2ToolStripMenuItem.Available=true;
        }
    if (radioButton2.Checked) {
        process2ToolStripMenuItem.Available=true;
        }

Answer 1

You have to make sure to also make the other(s) unavailable depending on the situation:

if (radioButton1.Checked)
{
    toolStripMenuItem1.Available = toolStripMenuItem2.Available = true;
    toolStripMenuItem3.Available = false;
}
else if (radioButton2.Checked)
{
    toolStripMenuItem1.Available = toolStripMenuItem2.Available = false;
    toolStripMenuItem3.Available = true;
}