MenuItem click only works when child item is clicked - wpf

Question

I have a larger PowerShell Script that is importing XAML code into it. Here's part of the code:
XAML
<Menu x:Name="menu" DockPanel.Dock="Top">
<MenuItem x:Name="menuFile" Header="File">
<MenuItem x:Name="menuFile_History" Header="_History"/>
<MenuItem x:Name="menuFile_Recent" Header="_Recent">
<MenuItem x:Name="menuFile_Recent1"/>
<MenuItem x:Name="menuFile_Recent2"/>
<MenuItem x:Name="menuFile_Recent3"/>
<MenuItem x:Name="menuFile_Recent4"/>
<MenuItem x:Name="menuFile_Recent5"/>
</MenuItem>
<MenuItem x:Name="menuFile_ShowMore" Header="_Show More"/>
<MenuItem x:Name="menuFile_FlushDNS" Header="_Flush DNS"/>
<MenuItem x:Name="menuFile_KillProcess" Header="Kill Process"/>
<Separator/>
<MenuItem x:Name="menuFile_Close" Header="_Close"/>
</MenuItem>
<MenuItem x:Name="menuEdit" Header="Edit">
<MenuItem x:Name="menuEdit_ConvertIP" Header="Convert IP" IsCheckable="True" IsChecked="True"/>
</MenuItem>
<MenuItem x:Name="menuHelp" Header="Help">
<MenuItem x:Name="menuHelp_About" Header="About"/>
</MenuItem>
</Menu>
PowerShell
$menuFile.Add_Click({
$txtInput.Text = "It worked!"
})
The problem is that the above PowerShell code is only ran when one of the child items is clicked, not when $menuFile is clicked. I have looked and looked and I cannot figure out why this is happening and how to fix it.
Thank you very much.

Answer 1

You're looking for a different event handler than Click. You want GotFocus or something like that.Try this instead
$menuFile.Add_GotFocus({$txtInput.Text = "It worked!"})
You can check out all of the events you can add event handlers to by piping to Get-Member as such:
$menuFile | Get-Member -MemberType Methods -force |?{$_.Name -like 'add*'}
Then just look for the methodsJust for kicks I tried this, and it worked as expected:
$menuFile.Add_GotFocus({$menuFile.FontSize = 16})
$menuFile.Add_LostFocus({$menuFile.FontSize = 12})
Then when I clicked on the File menu the font size for it and its children got larger, but when I moved to a different menu or clicked away the font size shrank back to font size 12.