Disable WPF label accelerator key (text underscore is missing)
WpfUser InterfaceWpf Problem Overview
I am setting the .Content
value of a Label to a string that contains underscores; the first underscore is being interpreted as an accelerator key.
Without changing the underlying string (by replacing all _
with __
), is there a way to disable the accelerator for Labels?
Wpf Solutions
Solution 1 - Wpf
If you use a TextBlock as the Content of the Label, its Text will not absorb underscores.
Solution 2 - Wpf
You could override the RecognizesAccessKey property of the ContentPresenter that is in the default template for the label. For example:
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Grid>
<Grid.Resources>
<Style x:Key="{x:Type Label}" BasedOn="{StaticResource {x:Type Label}}" TargetType="Label">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Label">
<Border>
<ContentPresenter
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
RecognizesAccessKey="False" />
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Grid.Resources>
<Label>_This is a test</Label>
</Grid>
</Page>
Solution 3 - Wpf
Use a <TextBlock> ... </TextBlock>
instead of <Label> ... </Label>
to print the exact text, which is having underscores.
Solution 4 - Wpf
Why not like this?
public partial class LabelEx : Label
{
public bool PreventAccessKey { get; set; } = true;
public LabelEx()
{
InitializeComponent();
}
public new object Content
{
get
{
var content = base.Content;
if (content == null || !(content is string))
return content;
return PreventAccessKey ?
(content as string).Replace("__", "_") : content;
}
set
{
if (value == null || !(value is string))
{
base.Content = value;
return;
}
base.Content = PreventAccessKey ?
(value as string).Replace("_", "__") : value;
}
}
}