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LegendLabel Binding
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This is a migrated thread and some comments may be shown as answers.
Raj
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Raj asked on 05 Feb 2010, 09:27 PM
I would like to bind the LegendLabel to a property in my ViewModel, something like...

<telerikCharting:SeriesMapping LegendLabel="{Binding ViewModelField}" >

This does not seem to work. I've also tried binding to another element on the page which itself binds to the view model...

<telerikCharting:SeriesMapping LegendLabel="{Binding Text, ElementName=SeriesALengendLabelText}" >
...
...
<TextBlock x:Name="SeriesALengendLabelText" Text="{Binding ViewModelField}" Opacity="0"/>

Any ideas on how I can accomplish this?

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Giuseppe
Telerik team
answered on 10 Feb 2010, 07:57 AM
Hello Raj,

The SeriesMapping.LegendLabel property is not a dependency property so you cannot use a binding expression to assign its value. Note that this cannot be improved at the moment as in Silverlight the binding target can be a DependencyProperty of a FrameworkElement only and SeriesMapping is not a FrameworkElement (it has no visual presentation).


Regards,
Manuel
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Raj
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answered on 10 Feb 2010, 02:09 PM
Thanks for the info. The reason I wanted this functionality was to support a variety of chart data within the same control. Depending on what data set I'm binding to the legend needed to change appropriately. I have found a bit of a workaround - I have defined different sets of series definitions for each chart and set the relevant legend as needed. Since the unused series has no data, the legend does not show up.
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