CODEWITHSUNDEEP
c#wpf
user007
user007

Reputation: 1192

WPF Buttons ContentTemplate getting overridden when set through the style

If I set ContentTemplate on Content Presenter directly it works fine, if I use Style it gets overridden:

Inside Buttons ControlTemplate:

<ContentPresenter ContentTemplate="{StaticResource Default}"/>

vs

<ContentPresenter Style="{StaticResource MyContentStyle}"/>

Works fine:

<DataTemplate x:Key="Default">
    <StackPanel>
        <TextBlock>this is the</TextBlock>
        <TextBlock>default view</TextBlock>
        <TextBlock Text="{Binding}"></TextBlock>
    </StackPanel>
</DataTemplate>

<ControlTemplate x:Key="ButtonTemplate" TargetType="Button">
    <Grid Margin="20">
        <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"
                                      ContentTemplate="{StaticResource Default}"
                                      />
        </Border>
    </Grid>
</ControlTemplate>
</Grid.Resources>
<Button Template="{StaticResource ButtonTemplate}">Click Me</Button>

Default DataTemplate is not applied, it says overridden in visual tree. this is the default view 

<Style x:Key="MyContentStyle" TargetType="ContentPresenter">
    <Setter Property="ContentTemplate" Value="{StaticResource Default}"/>
</Style>

<ControlTemplate x:Key="ButtonTemplate" TargetType="Button">
    <Grid Margin="20">
        <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" 
                                      Style="{StaticResource MyContentStyle}"
                                      />
        </Border>
    </Grid>
</ControlTemplate>
</Grid.Resources>
<Button Template="{StaticResource ButtonTemplate}">Click Me</Button>

If I use ContentPresenter independently from button it works fine:

<Grid>
    <ContentPresenter Style="{StaticResource MyContentStyle}" Content="Work fine even with Style" />
</Grid>

Upvotes: 0

Views: 656

Answers (2)

user007
user007

Reputation: 1192

If content is set on the ContentPresenter, the Style will be applied. So the solution for style to work is:

<ContentPresenter Content="{Binding Content, RelativeSource={RelativeSource TemplatedParent}}"  Style="{StaticResource MyContentStyle}" />

Upvotes: 0

mm8
mm8

Reputation: 169400

The Button has its own ContentTemplate property. Set this one directly:

<Button Template="{StaticResource ButtonTemplate}" ContentTemplate="{StaticResource Default}">Click Me</Button>

Or in a Style that you apply to the Button:

<Style x:Key="ButtonStyle" TargetType="Button" >
    <Setter Property="ContentTemplate" Value="{StaticResource Default}"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="Button">
                <Grid Margin="20">
                    <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"  />
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
...
<Button Style="{StaticResource ButtonStyle}">Click Me</Button>

Upvotes: 1

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