如何在 C# 中向 MenuStrip 的 ToolStripMenuItem 添加子项

Question

I have added a menustrip1 into my windows form and I statically added one toolstripmenuitem (WindowstoolStripmenuItem) to that menustrip1 . And I have created a toolstripmenuitem dynamically. I want to add this dynamic toolstripmenuitem to the static menustripitem(WindowstoolStripmenuItem) which is created statically on design time.

ToolStripMenuItem itm = new ToolStripMenuItem();
itm.Name = "fm1";
itm.Text = "Form1";

How can I add this subitem to the static menustrip's Windows item.

Answer 1

You can add a ToolStripMenuItem to another ToolStripMenuItem.DropDownItems collection.

If you don't have a reference to your ToolStripMenuItem, you can get one by key (Name Property) or Index

var itm = menustrip1.Items["Text"];
var itm = menustrip1.Items[0];

Here is the code

var menustrip1 = new System.Windows.Forms.MenuStrip();
var item = new System.Windows.Forms.ToolStripMenuItem()
{
    Name = "Test",
    Text = "Test" 
};
var item2 = new System.Windows.Forms.ToolStripMenuItem()
{
    Name = "Test",
    Text = "Test"
};
item.DropDownItems.Add(item2);
menustrip1.Items.Add(item);