add things to menustrip c# and specify their code

Question

This is similar to: How to add things to a menustrip programatically?, but I need something slightly different.

I have a winform, and I'm creating new instances of the form. However, I'm also collecting all of the current instances of the form when I make a new one, and populating a "Window" menu with menuitems to allow me to close the windows. As such, I need to not only add things to a menustrip programmatically, I need to also specify what those menus do as well. Is that possible?

Code:

    private void newWindowToolStripMenuItem_Click(object sender, EventArgs e)
    {
        var newForm = new Form1();
        newForm.Show();
        foreach (Form form in Application.OpenForms)
        {

            // add menu items under "Window" with the name of the window and the
            // event handler to close that window, aka form.Close() I assume; 
        }
    }

I would like to do it this way, so that I update the "Window" menu every time I create a new window so that my list of windows to close is accurate without any weird extra stuff.

score 0 · Answer 1 · answered May 19 '14 at 03:57

0

You can create a class with required fields, and pass the required data.

public class MenuItemInfo
{
    public string Text { get; set; }
    public object Tag { get; set; }
    public EventHandler Handler { get; set; }
}

var menuItems = new List<MenuItemInfo>
{
    new MenuItemInfo
    {
        Text = "whatever",
        Tag = whatever,
        Handler = (o, s) =>
        {
            //Do whatever
        }
    }
};

ToolStripMenuItem toolStripMenuItem;
foreach (var mi in menuItems)
{
    ToolStripMenuItem foo = new ToolStripMenuItem(mi.Text);
    foo.Click += mi.Handler;
    foo.Tag = mi.Tag;

    toolStripMenuItem.DropDownItems.Add(foo);
}

answered May 19 '14 at 03:57

Sriram Sakthivel

72,067
7
111
189

That looks really good, but I'm wracking my brains trying to figure out how I'm going to implement it, as I'm trying to do it inside of an existing eventhandler: `code` private void newWindowToolStripMenuItem_Click(object sender, EventArgs e) { var newForm = new Form1(); newForm.Show(); foreach (Form form in Application.OpenForms) { // add menuitems with code to close one of the open windows, replacing existing menuitems. } }`code` – Mark Anthony May 19 '14 at 04:16
Am sorry, I don't get it. You solved your problem or you need more help? If you need more help edit your question with more info, your updated code etc. – Sriram Sakthivel May 19 '14 at 04:28

score 0 · Accepted Answer · answered May 19 '14 at 05:59

Add "ItemClicked"-event to your ContexMenuStrip menu. "ContextMenuStrip1" is the name of the menu used here. Edit part of your code as follows:

        var newForm = new Form1() { Name = "myForm" };
        newForm.Show();

        foreach (Form form in Application.OpenForms)
        {
            // Add new menuitem with the name of the form, and save the reference to "Tag"-property
            ToolStripMenuItem newItem = new ToolStripMenuItem() { Name = newForm.Name, Text = newForm.Name, Tag = newForm };

            // Add the new item to the menu
            contextMenuStrip1.Items.Add(newItem);
        }

Then make the "ItemClicked"-event:

    private void contextMenuStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
    {

        // Close the linked form, if it isn't disposed
        if (!((Form)((ToolStripItem)e.ClickedItem).Tag).IsDisposed)
        {
            ((Form)((ToolStripItem)e.ClickedItem).Tag).Close();
        }

        // Remove this menuitem from the menu
        contextMenuStrip1.Items.Remove((ToolStripItem)e.ClickedItem);
    }

add things to menustrip c# and specify their code

2 Answers2