Reshaper and DataPager

2 posts, 0 answers
  1. Inger Marie
    Inger Marie avatar
    86 posts
    Member since:
    Nov 2010

    Posted 13 Aug 2015 Link to this post

    I have thisRadDataPager

     <telerik:RadDataPager x:Name="radDataPager" Grid.Row="1" Source="{Binding ItemCollection}" DockPanel.Dock="Bottom" PageSize="400" DisplayMode="First, Last, Next, Previous, Text" />

     I bind to it in the ItemsSource of a RadGridView:

      <Controls:RadGridView x:Name="_rgvAdSales"
                                  SelectedItem="{Binding Selected​Item, Mode=TwoWay}"
                                  ItemsSource="{Binding PagedSource, ElementName=radDataPager}"


    My columns look like this:

           <Controls:GridViewDataColumn Header="Name" DataMemberBinding="{Binding ​Name}" IsReadOnly="True" />


    Resharper draws a lin​e under Name (the path of the binding in the column) and says this:

        Cannot resolve property 'Name' in data context of type 'Telerik.Windows.Data.IPagedCollectionView'


    I have tried to add d:DataContext, but I cannot get that to work.



    If I bind the ItemsSource of RadGridView directly to the ItemCollection on the ViewModel, then resharper does not give any warnings.

    Do you know of any good way (ie. not causing performance loss) to tell resharper the datatype of the ItemSource or datacontext of the column?




  2. Ivan Ivanov
    Ivan Ivanov avatar
    1210 posts

    Posted 18 Aug 2015 Link to this post

    Hi Inger Marie,

    Can you please confirm whether it is a design-time only error? Do you have any similar binding errors at runtime? Generally, GridViewColumns are not visual elements and having DataContext is an inheritance consequence for deriving from FrameworkContentElement.
    Actually, the binding that is assigned as DataMemeberBinding should not be practically evaluated as it is not directly used. In the majority of scenarios, RadGridView uses member access expressions to emulate the assigned binding definition, since the .net expression engine is faster than the default WPF binding logic. 

    Ivan Ivanov
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