Art Kedzierski
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Rank 2
Rank 2
Art Kedzierski
asked on 28 Jun 2013, 08:04 PM
Getting an odd error I can't run to ground when binding a RichTextBox to a database via MVVM. here's my simple code:
The RichTextBox binding of the XamlDataProvider throws the following error:
The local property "RichTextBox" can only be applied to types that are derived from "DataProviderBase".
What am I missing?
<Grid x:Name="LayoutRoot" Margin=" 10"> <Grid.ColumnDefinitions> <ColumnDefinition Width="300"/> <ColumnDefinition/> </Grid.ColumnDefinitions> <telerik:RadListBox x:Name="ToC" ItemsSource="{Binding HelpDocs}" SelectedItem="{Binding SelectedTopic, Mode=TwoWay}"/> <telerik:XamlDataProvider x:Name="CurrentDocument" RichTextBox="{Binding SelectedTopic.Body}" Xaml="{Binding SelectedTopic.Body, Mode=TwoWay}"/> <telerik:RadRichTextBox x:Name="HelpPane" Grid.Column="1" LayoutMode="Flow" IsReadOnly="False" IsSpellCheckingEnabled="False" ScrollViewer.VerticalScrollBarVisibility="Auto" Background="{x:Null}" BorderBrush="{x:Null}" BorderThickness="0" Grid.ColumnSpan="2"/></Grid>The RichTextBox binding of the XamlDataProvider throws the following error:
The local property "RichTextBox" can only be applied to types that are derived from "DataProviderBase".
What am I missing?
1 Answer, 1 is accepted
0
Accepted
Hi Art,
It seems that the problem is with the way you have set the RichTextBox property of XamlDataProvider:
Judging from the rest of the code, this SelectedTopic.Body must be the property that keeps the content of the document as a XAML string. The RichTextBox property, however, is the link between the provider and the RadRichTextBox, so it should be bound to the RadRichTextBox instance like this:
More information on data providers can be found here.
Regards,
Iva Toteva
Telerik
It seems that the problem is with the way you have set the RichTextBox property of XamlDataProvider:
RichTextBox="{Binding SelectedTopic.Body}"Judging from the rest of the code, this SelectedTopic.Body must be the property that keeps the content of the document as a XAML string. The RichTextBox property, however, is the link between the provider and the RadRichTextBox, so it should be bound to the RadRichTextBox instance like this:
RichTextBox="{Binding ElementName="HelpPane"}"More information on data providers can be found here.
Regards,
Iva Toteva
Telerik
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