How to add nested MenuItem dynamically

最新推荐文章于 2024-08-22 08:46:57 发布

原创最新推荐文章于 2024-08-22 08:46:57 发布 · 593 阅读

0 ·

CC 4.0 BY-SA版权

C#/.Net 同时被 2 个专栏收录

32 篇文章

订阅专栏

WPF

15 篇文章

订阅专栏

本文介绍如何在WPF应用程序中动态地为名为'SecondItem'的ContextMenu添加子项。通过在ContextMenu打开事件中遍历菜单项并检查标题来实现。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

How to add sub items to "Second Item" dynamically

In xaml file

<Grid.ContextMenu>
<ContextMenu Opened="OnContextMenuOpened"> // Initialize context menu event
<MenuItem Header="First Item" Click="OnClickFirstItem"/>
<MenuItem Header="Second Item" />
</ContextMenu>

</Grid.ContextMenu>

In xaml.cs file

private void OnContextMenuOpened(object sender, RoutedEventArgs e)
{
try
{
ContextMenu menu = sender as ContextMenu;
if (menu != null)
{
foreach (MenuItem item in menu.Items)
{
if (item.Header == null)
continue;

if (item.Header.ToString() == "Second Item")
{
item.Items.Clear();

foreach (string strHeader in stringArray)
{
MenuItem item= new MenuItem();
item.Header = strHeader;
item.Click += new RoutedEventHandler(OnClickItem);
item.Items.Add(item);
}
}
}
}
}
catch (System.Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.ToString());
}
}