Xaml and custom property for style (WPF) how to?

Question

Xaml and custom property for style (WPF) how to?

Code Wanderer 396

I want create new property for style. For example I want control from property some visuals (width of the Thumb or rounded corner for example).
exmaple:

<Slider ThumbWidth="4" RoundedCorners="6"/>

where ThumbWidth is custom property.
How to do that?

DaisyTian-1203 11,646

How about updating the style of Slider to set the CornerRadius?

  <Border x:Name="TrackBackground" CornerRadius="5,5,5,5" BorderBrush="Red" BorderThickness="1" Background="Yellow" Height="15.0" Margin="5,0" Grid.Row="1" VerticalAlignment="center" >
                        <Canvas Margin="-6,-1">
                            <Rectangle x:Name="PART_SelectionRange" Fill="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" Height="10.0" Visibility="Hidden"/>
                        </Canvas>
                    </Border>

Code Wanderer 396 Reputation points

2020-09-25T14:16:20.733+00:00

Thanks to try help, but I know that I can edit style and add / change ConrerRadius. I am asking if it is possible add own property into style.
Peter Fleischer (former MVP) 19,341 Reputation points

2020-09-26T05:05:44.013+00:00

Hi,
use Binding in Style.
Andy ONeill 361 Reputation points

2020-09-26T13:16:25.797+00:00

You can use attached properties for this sort of thing.

Either subclassing slider and defining in the code for your new control or in a separate class.
As explained here:

https://codemag.com/Article/1405061/XAML-Magic--Attached-Properties

( I would recommend googling and reading up a bit more beyond that single article ).

Your answer

DaisyTian-1203 11,646 Reputation points

2020-09-25T05:58:16.47+00:00

How about updating the style of Slider to set the CornerRadius?

<Border x:Name="TrackBackground" CornerRadius="5,5,5,5" BorderBrush="Red" BorderThickness="1" Background="Yellow" Height="15.0" Margin="5,0" Grid.Row="1" VerticalAlignment="center" > <Canvas Margin="-6,-1"> <Rectangle x:Name="PART_SelectionRange" Fill="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" Height="10.0" Visibility="Hidden"/> </Canvas> </Border>
Code Wanderer 396 Reputation points

2020-09-25T14:16:20.733+00:00

Thanks to try help, but I know that I can edit style and add / change ConrerRadius. I am asking if it is possible add own property into style.
Peter Fleischer (former MVP) 19,341 Reputation points

2020-09-26T05:05:44.013+00:00

Hi,
use Binding in Style.
Andy ONeill 361 Reputation points

2020-09-26T13:16:25.797+00:00

You can use attached properties for this sort of thing.

Either subclassing slider and defining in the code for your new control or in a separate class.
As explained here:

https://codemag.com/Article/1405061/XAML-Magic--Attached-Properties

( I would recommend googling and reading up a bit more beyond that single article ).

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Xaml and custom property for style (WPF) how to?

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