MVVM binding with Caliburn Micro

2 posts, 0 answers
  1. Stefan Buys
    Stefan Buys avatar
    22 posts
    Member since:
    Dec 2009

    Posted 13 Apr 2011 Link to this post

    Hi,

    I am developing an application using Caliburn Micro as an MVVM framework and WCF RIA Services with Entities for the Models.

    I have a scenario where I have a report with input criteria, one of the criteria input controls is a RadComboBox. It is bound to a collection of GroupEntity with two fields, GroupId and Description - both of which is marked as [Required] and contains a meta description. In the RadComboBox I set the SelectedValuePath to GroupEntity.GroupId and then bind SelectedValue to another GroupId containing the rest of the criteria. Lastly, I bind the text property to the GroupEntity.Description.

    Here's a short extract of my RadComboBox in XAML:
    <telerik:RadComboBox IsEditable="True" IsFilteringEnabled="True" TextSearchMode="Contains"
    DisplayMemberPath="Description"
    SelectedValuePath="GroupId"
    SelectedValue="{Binding Path=CriteriaEntity.GroupId, Mode=TwoWay}"                                    
    Text="{Binding Path=Description, NotifyOnValidationError=True, Mode=TwoWay}" EmptyText="Please Select">

    The ComboBox is bound via the Caliburn Micro convention manager that binds a EntitySet<T> to RadComboBox's ItemsSource property.

    All of the desired functionality works fine, except for the the fact that I have a Label and DescriptionViewer control with a Target bound to the RadComboBox and neither of them seem to "bind" properly. The Label doesn't turn bold and the DescriptionViewer is not visible. For all other RadControls bound in a similar way to RIA Entities, the meta information is pulled through correctly. 

    Any ideas?
    Stefan
  2. Valeri Hristov
    Admin
    Valeri Hristov avatar
    2252 posts

    Posted 14 Apr 2011 Link to this post

    Hello Stefan,

    I am not sure that I will be able to exactly recreate your scenario, so could you please open a new support ticket and send me a simple project to observe and debug the problem? We will do our best to reply with a solution as soon as possible.

    Kind regards,
    Valeri Hristov
    the Telerik team
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