WinForms menu control changes in Core 5

Question

Is Microsoft (or anyone) going to provide documentation/tutorials on changes to WinForms controls under Core 5. I tried to add menu and sub menu items to a MenuStrip control and can't figure out how to add the submenu items. I've found similar changes in other user controls that I no longe know how to use under Core 5. This thing is a nightmare.

Answer 1

Hi BrandonStewart-4522,
Starting in .NET Core 3.1, some Windows Forms controls have changed.
More details you can refer to this document.
And the Desktop Guide documentation for .NET 5 (and .NET Core) and is under construction.
Please refer to this document.
Viorel-1 has provided a method that add submenu in Properties panel.
You can also add these with code:
First, you can add an item to MenuStrip control with following code:

menuStrip1.Items.Add("Item title");  

Then to add a sub-menu, you can take an existing item and using DropDownItems to add.

(menuStrip1.Items[0] as ToolStripMenuItem).DropDownItems.Add("sub menu");  

Best Regards,
Daniel Zhang

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Answer 2

In contrast with previous Window Forms, it seems that menus cannot be designed visually yet, but you can click “Items (Collection)…” and “DropDownItems (Collection)…” in Properties panel and dialogs to add items and subitems.