CODEWITHSUNDEEP
silverlightdata-bindingsilverlight-4.0storyboard
user278618
user278618

Reputation: 20222

Can't assign RoutedEvent to Binding.TargetUpdated

I have a textblock which should react for changing its text (it must display text for few seconds, and then dissapear).

 <TextBlock Text="{Binding Path=OperationMessage, NotifyOnValidationError=True}" x:Name="label_OperationMessage" Visibility="Collapsed" HorizontalAlignment="Right" Margin="3,3,3,3" >
                 <TextBlock.Triggers>
<EventTrigger RoutedEvent="Binding.TargetUpdated">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="Opacity" Duration="0:0:0" To="1.0" />
<DoubleAnimation Storyboard.TargetProperty="Opacity" Duration="0:0:2" From="1.0" To="0.0" BeginTime="0:0:5" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</TextBlock.Triggers>
            </TextBlock>

When I launch my app I get error :

Failed to assign to property 'System.Windows.EventTrigger.RoutedEvent'.

on the line

<EventTrigger RoutedEvent="Binding.TargetUpdated">

What is wrong with this code?

Upvotes: 0

Views: 505

Answers (1)

AnthonyWJones
AnthonyWJones

Reputation: 189437

The only event supported by Silverlight for use in the Triggers property is the Loaded event. Anything else will result in this exception.

To acheive this sort of Xaml event logic you can download the Blend SDK which contains all manner of useful features like this. In your case you are looking for the PropertyChangedTrigger.

Upvotes: 1

Related Questions