I have a need to add menu items to a context menu dynamically, depending on
the area clicked.  So for instance, when you right click, I pop up a context
menu.  The menu items in the context menu need to be added dynamically
depending on which control I clicked on.  So there could be 1 menu item, 2,
3, 4, etc.  My question is ... how do I add the menu item's dynamically and
assign their click events to a method?  I know how to add the menu items to
the context menu and I know that if I were to create a class level menu item
I could assign it's click event in the initialize of the form.  But in thi
instance, I do not know how many menu items will be needed so I want to
create them at the time the right-click of the mouse occurs.  So how do I
assign their click events?

I'm sure there is a very simple answer to this, but I have not been able to
find any examples yet.  Help would be appreciated.

Dave

Hello Dave,

You may create a ContextMenu and add the Event Handler to the click event.
There is a sample code demonstrates show a context menu on the nodes of a
Treeview control:

private void treeView1_MouseUp(object sender,
System.Windows.Forms.MouseEventArgs e)
{
        // logic to show context menu
        if(e.Button == MouseButtons.Right)
        {
                Point ClickPoint = new Point(e.X,e.Y);
                TreeNode CurrentNode = treeView1.GetNodeAt(ClickPoint);
                if(CurrentNode == null)
                        return;

                // Convert from Tree coordinates to Screen
                Point ScreenPoint = treeView1.PointToScreen(ClickPoint);
                // Convert from Screen to Form
                Point FormPoint = this.PointToClient(ScreenPoint);
                // showing the context menu
                // in Add use an overloaded that adds an eventhandler or anything else
                ContextMenu menu = new ContextMenu();
                menu.MenuItems.Clear();
                menu.MenuItems.Add("Option 1");
                menu.MenuItems[0].Click += new EventHandler(Option1_Click);
                menu.MenuItems.Add("Option 2");
                menu.MenuItems[1].Click += new EventHandler(Option2_Click);
                menu.Show(this,FormPoint);
        }

private void Option1_Click(object sender, EventArgs e)
{
        MessageBox.Show("Option1_Click");

private void Option2_Click(object sender, EventArgs e)
{
        MessageBox.Show("Option2_Click");

I hope this helps.

Best regards,

Lion Shi, MCSE, MCSD
Microsoft Support Engineer

This posting is provided "AS IS" with no warranties, and confers no rights.
You assume all risk for your use.  2001 Microsoft Corporation. All rights
reserved.
--------------------

    Subject: help working with context menus and adding menu items
dynamically
    Date: Mon, 8 Jul 2002 15:35:15 -0400
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    I have a need to add menu items to a context menu dynamically,
depending on
    the area clicked.  So for instance, when you right click, I pop up a
context
    menu.  The menu items in the context menu need to be added dynamically
    depending on which control I clicked on.  So there could be 1 menu
item, 2,
    3, 4, etc.  My question is ... how do I add the menu item's dynamically
and
    assign their click events to a method?  I know how to add the menu
items to
    the context menu and I know that if I were to create a class level menu
item
    I could assign it's click event in the initialize of the form.  But in
thi
    instance, I do not know how many menu items will be needed so I want to
    create them at the time the right-click of the mouse occurs.  So how do
I
    assign their click events?

    I'm sure there is a very simple answer to this, but I have not been
able to
    find any examples yet.  Help would be appreciated.

    Dave