C＃：是否有可能獲得菜單項中的DropDownItem的索引？

Question

是否可以在下拉菜單中獲取項目的索引？

Answer 1

private void item_Click(object sender, EventArgs e) 
{ 
    ToolStripMenuItem item = sender as ToolStripMenuItem; 
    if (item != null) 
    { 
     int index = (item.OwnerItem as ToolStripMenuItem).DropDownItems.IndexOf(item); 
    } 
} 

Answer 2

上面的解決方案可能在投射到ToolStripMenuItem時會拋出null，並且會有一些絨毛。這一個更清潔：

private void item_Click(object sender, EventArgs e) 
{ 
    ToolStripMenuItem item = sender as ToolStripMenuItem; 
    if (item != null) 
    { 
     int index = ContextMenuStrip.Items.IndexOf(commentMenuItem); 
    } 
}