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POWPF combo box update source trigger
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  1. POWPF combo box update source trigger
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    copied!<p>I've added triggers for combobox, i.e. </p> <ul> <li><p>When combo box is 'Disabled' then 'Text' property should set to '1' and added updatesourcetrigger to property changed.</p></li> <li><p>When combo box is 'Enabled' then 'Text' property should be selected one and added update source trigger to property changed.</p></li> </ul> <p>But the problem is I'm unable to call the update source trigger when combo box is Disabled and 'Text' property is set to '1'.</p> <p>Below is the XAML code snippet:</p> <pre><code>&lt;ComboBox Name="cmbIntervals" Grid.Row="5" Grid.Column="1" Width="150" HorizontalAlignment="Left" VerticalAlignment="Top" IsEnabled="{Binding ElementName=chkRollingInterval, Path=IsChecked}" ItemsSource="{Binding Source={x:Static es:MasterParameters.Instance}, Path=NoOfIntervals}" Tag="{Binding Path=[NoOfIntervals], Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" &gt; &lt;ComboBox.Style&gt; &lt;Style TargetType="{x:Type ComboBox}"&gt; &lt;Style.Triggers&gt; &lt;Trigger Property="IsEnabled" Value="False"&gt; &lt;Setter Property="Text" Value="1"/&gt; &lt;Setter Property="Text" Value="{Binding RelativeSource={RelativeSource Self}, Path=Tag, Mode=TwoWay, UpdateSourceTrigger=Default}"/&gt; &lt;/Trigger&gt; &lt;Trigger Property="IsEnabled" Value="True"&gt; &lt;Setter Property="Text" Value="{Binding RelativeSource={RelativeSource Self}, Path=Tag, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"/&gt; &lt;/Trigger&gt; &lt;/Style.Triggers&gt; &lt;/Style&gt; &lt;/ComboBox.Style&gt; &lt;/ComboBox&gt; </code></pre> <p>From above XAML code when ever i updated 'Text' property to '1' for combo box 'Disabeld' mode i need to update this '1' value to the source property i.e. 'Tag' and from there to 'NoOfIntervals' but it doesn't happening.</p> <p>Thanks, Nag</p>
 

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