DataStateBehavior

DataStateBehavior performs an action when the data the behavior is bound to is equal to some value.

This behavior checks whenever the associated Binding is updated to see if the result of the binding is equal to some Value. If the two values are equal, it transitions to the TrueState. Otherwise, it transitions to the FalseState.

Sample Code

Xaml

<Button x:Name="sampleStateButton">
  <Button.Resources>
    <Style TargetType="Button" >
      <Setter Property="Template">
        <Setter.Value>
           <ControlTemplate TargetType="Button">
           <Grid x:Name="BaseGrid" Background="DeepPink">
             <VisualStateManager.VisualStateGroups>
               <VisualStateGroup>
                 <VisualState x:Name="Normal">
                   <Storyboard>
                     <ColorAnimation Storyboard.TargetName="BaseGrid" Storyboard.TargetProperty="(Background).(SolidColorBrush.Color)" To="DeepPink" From="DeepPink" />
                   </Storyboard>
                  </VisualState>
                  <VisualState x:Name="Blue">
                    <Storyboard>
                      <ColorAnimation Storyboard.TargetName="BaseGrid" Storyboard.TargetProperty="(Background).(SolidColorBrush.Color)" To="DarkBlue" From="DarkBlue" Duration="Forever" />
                    </Storyboard>
                  </VisualState>
                </VisualStateGroup>
              </VisualStateManager.VisualStateGroups>
              <Behaviors:Interaction.Behaviors>
                <Behaviors:DataStateBehavior Binding="{Binding Text, ElementName=MyText}" Value="" TrueState="Normal" FalseState="Blue" />
              </Behaviors:Interaction.Behaviors>
            </Grid>
          </ControlTemplate>
        </Setter.Value>
      </Setter>
    </Style>
  </Button.Resources>
</Button>