访问ContextMenu内部的TextBox [英] Accessing TextBox inside a ContextMenu
本文介绍了访问ContextMenu内部的TextBox的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个TextBox,它是ContextMenu的MenuItem的一部分。但是,我似乎无法像访问ContextMenu之外的其他控件一样访问该TextBox。这是我的XAML:
I've got a TextBox that's part of a ContextMenu's MenuItem. However, I can't seem to access that TextBox the same way I can access other controls that are outside of the ContextMenu. Here's my XAML:
<ListBox Name="ItemList">
<ListBox.Resources>
<ContextMenu x:Key="listBoxItemContextMenu">
<MenuItem Header="Rename">
<TextBox Name="newFilename" KeyUp="renameFile" />
</MenuItem>
</ContextMenu>
</ListBox.Resources>
<ListBox.ItemContainerStyle>
<Style TargetType="ListBoxItem">
<Setter Property="ContextMenu" Value="{StaticResource listBoxItemContextMenu}"/>
</Style>
</ListBox.ItemContainerStyle>
</ListBox>
我要访问的文本框是'renameFile'。
The TextBox I'm trying to access is 'renameFile'.
推荐答案
尝试此代码
ContextMenu cm = ItemList.Resources["listBoxItemContextMenu"] as ContextMenu;
MenuItem mi = cm.Items[0] as MenuItem;
TextBox tb = mi.Items[0] as TextBox;
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