CODEWITHSUNDEEP
c#winformstoolstripdropdowntoolstripitem
Christian
Christian

Reputation: 28125

"Pin" control over items in ToolstripMenu

First, a little overview of how my current UI looks like:

Current UI

Note that other than the stuff in the ToolStripControlHost, everything else is standard WinForms.

In short, I want to have something similar to the ToolStripControlHost but I need it "pinned" to the bottom of the menu, mostly so that when there is a lot of items, it is not scrolled like the rest of the menu items.

After some searching around I came to the conclusion that maybe customizing painting might be the solution, don't know if this is the case though.

Here's some sample code, but I'm not sure how useful it is:

public ToolStripDropDownButtonContainer(ToolStripDropDownButton button)
{
    this.UIControl = button.GetCurrentParent();
    this.Button = button;

    if (this.Button.Tag == null)
    {
        this.Button.Tag = true;

        this.Button.DropDownDirection = ToolStripDropDownDirection.AboveLeft;
        ToolStripDropDownMenu menu = (ToolStripDropDownMenu)this.Button.DropDown;

        menu.SuspendLayout();
        try
        {
            menu.BackColor = Color.White;
            menu.ShowImageMargin = false;
            menu.ShowCheckMargin = false;
            menu.AutoSize = true;
            menu.Margin = Padding.Empty;
            menu.Padding = Padding.Empty;
            menu.GripMargin = Padding.Empty;
            menu.GripStyle = ToolStripGripStyle.Hidden;
            menu.MinimumSize = new Size(310, 0);
            menu.MaximumSize = menu.MinimumSize;
            // TODO pin panel (or some control) to the bottom-side of the menu
        }
        finally
        {
            menu.ResumeLayout();
        }
    }
}

Upvotes: 3

Views: 426

Answers (1)

Christian
Christian

Reputation: 28125

My solution to this problem is to completely avoid using the normal menu control containment system and instead have the menu show one FlowLayoutPanel which instead contains my menu items.

This involved having to add some various trickeries to get the panel to behave nicely with the UI. The added advantage of this approach is more flexibility and control over the system.

On the downside, I noticed a degrade in performance when I have a tonne of sub-items, but I'll investigate this separately.

Upvotes: 3

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