Question

Trying to perform a simple red blinking effect for a single row in a DevExpress grid.

I’ve applied the following style on the grid’s row:

<Style x:Key="AlertedRowStyle" TargetType="{x:Type dxg:GridRowContent}">
    <Style.Triggers>
        <DataTrigger Binding="{Binding Path=Row.IsAlerted}" Value="False">
            <DataTrigger.EnterActions>
                <BeginStoryboard>
                    <Storyboard>
                        <ColorAnimation
                                    Storyboard.TargetProperty="Background"
                                    To="Red"
                                    Duration="0:0:0.500"
                                    AutoReverse="True"
                                    RepeatBehavior="Forever">
                            <ColorAnimation.EasingFunction>
                                <CircleEase EasingMode="EaseOut" />
                            </ColorAnimation.EasingFunction>
                        </ColorAnimation>
                    </Storyboard>
                </BeginStoryboard>
            </DataTrigger.EnterActions>
            <DataTrigger.ExitActions>
                <BeginStoryboard>
                    <Storyboard>
                        <ColorAnimation
                                    Storyboard.TargetProperty="Background"
                                    To="White"
                                    Duration="0:0:0.500" />
                    </Storyboard>
                </BeginStoryboard>
            </DataTrigger.ExitActions>
        </DataTrigger>
    </Style.Triggers>
</Style>

It causes the following exception:

‘System.Windows.Media.Animation.ColorAnimation’ animation object cannot be used to animate property ‘Background’ because it is of incompatible type ‘System.Windows.Media.Brush’.

Also tried to change the Storyboard.TargetProperty to Background.Color and got:

Cannot resolve all property references in the property path ‘Background.Color’. Verify that applicable objects support the properties.

How can I solve this issue?

Answer 1

Storyboard.TargetProperty="Background.Color" is right. Try

<Style x:Key="AlertedRowStyle" TargetType="{x:Type dxg:GridRowContent}">
    <Setter Property="Background" Value="Transparent" />
    <Style.Triggers>
        ...

I guess Background is Null and so the Storyboard can not find something to animate.