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wpfgridcolumndefinition

Grid leaving extra space between column definitions

I have a custom button with a custom defined template. In the template i'm using grid definitions to sort the content of a Rectangle, Canvas and Label.

Here's the template:

<ControlTemplate
    TargetType="{x:Type l:UXButton}">
    <Border
        Name="TEMP_Container"
        Padding="{TemplateBinding Padding}"
        Background="{TemplateBinding Background}"
        BorderBrush="{TemplateBinding BorderBrush}"
        BorderThickness="{TemplateBinding BorderThickness}"
        CornerRadius="{TemplateBinding CornerRadius}"
        FlowDirection="{Binding Converter={StaticResource LocalizedFlowConverter}}">
        <Grid
            Name="TEMP_ContentContainer"
            Background="Blue">
            <Grid.ColumnDefinitions>
                <ColumnDefinition
                    Name="ColumnIcon"
                    Width="{Binding ActualHeight, RelativeSource={RelativeSource AncestorType={x:Type Border}}}" />
                <ColumnDefinition
                    Name="ColumnSpace"
                    Width="auto" />
                <ColumnDefinition
                    Name="ColumnContent"
                    Width="auto" />
            </Grid.ColumnDefinitions>
            <Rectangle
                Name="TEMP_Icon"
                Grid.Column="0"
                Margin="0"
                Fill="{TemplateBinding Foreground}">
                <Rectangle.OpacityMask>
                    <VisualBrush
                        Stretch="{Binding RelativeSource={RelativeSource AncestorType=l:UXButton}, Path=Stretch}"
                        Visual="{Binding RelativeSource={RelativeSource AncestorType=l:UXButton}, Path=IconSource}" />
                </Rectangle.OpacityMask>
            </Rectangle>
            <Canvas
                Name="TEMP_Space"
                Grid.Column="1"
                Margin="0"
                Width="{TemplateBinding Spacing}" />
            <Label
                Name="TEMP_Content"
                Grid.Column="2"
                Margin="0"
                Padding="0"
                HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
                Foreground="{TemplateBinding Foreground}">
                <TextBlock
                    Margin="0"
                    Padding="0"
                    Text="{TemplateBinding Content}"
                    TextDecorations="{TemplateBinding TextDecorations}" />
            </Label>
        </Grid>
    </Border>
</ControlTemplate>

And here's the result:

enter image description here

As you can see the grid is leaving an extra space (blue) between the Canvas (red) and Rectangle (green) which i can't seem to figure why! I even tried using static values for the column width but it didn't help. I also used the XAML debugging tools and it seems to be part of the Grid.

Where is this space coming from?

Solution

  • It turned out to be a bug. Cleaning up bin and obj folders and simply doing a Rebuild fixed it. It must have been a Resource that got stuck somewhere in the middle.