'WPF DataGrid RowStyle for selected row not changing the background and foreground color

I am using Visual Studio 2012 on windows 7. I need to know why the following style for Grid's selected row does not work for background and foreground colors but works perfectly fine for other properties like BorderBrush and BorderThickness etc? Though I can see them changing while mouse over grid rows.

<Style x:Key="gridRowStyle" TargetType="{x:Type DataGridRow}">
    <Style.Triggers>
        <Trigger Property="IsMouseOver" Value="True">
            <Setter Property="Background" Value="PeachPuff"/>
            <Setter Property="Foreground" Value="BlueViolet"/>
        </Trigger>
        <Trigger Property="IsSelected" Value="True">
            <Setter Property="Background" Value="PeachPuff"/>
            <Setter Property="Foreground" Value="BlueViolet"/>
            <Setter Property="BorderBrush" Value="BlueViolet" />
            <Setter Property="BorderThickness" Value="2" />

        </Trigger>
    </Style.Triggers>
</Style>

Here is how I am using on grid.

<DataGrid RowStyle="{StaticResource gridRowStyle}">

I am stressing on to know "why" rather than solution to the problem as I already have solution to problem if I use grid cell style instead of rowstyle like following:

<Style x:Key="gridCellStyle" TargetType="{x:Type DataGridCell}">
    <Style.Triggers>
        <Trigger Property="IsSelected" Value="True">
            <Setter Property="Background" Value="PeachPuff"/>
            <Setter Property="Foreground" Value="BlueViolet"/>
        </Trigger>
    </Style.Triggers>
</Style>
wpfdatagridbackground-color


Solution 1:[1]

In the Default style of the DataGridCell having the following default style trigger.

<Trigger Property="IsSelected" Value="True">
    <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
    <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}"/>
    <Setter Property="BorderBrush" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
</Trigger>

So if you written trigger for DataGridRow, then it will only apply to the element that was placed before the DataGridCell in visual tree.

So to change the Background & Foreground while selection, you must write the trigger in DataGridCell style or remove the default trigger from the style.

Solution 2:[2]

Simply remove this attributs at row level in the datagrid, they have priority over the trigged properties.

nezac

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Ponraja
Solution 2 nezac

Related Questions