InvalidOperationException when group/sort one of the two grids binded on one ListCollectionView

[Cedric]

Hi,
I've got an error when i try to group my data by using the drag an drop of one of the columnheader. The only thing noticeable is there is two grids binded over one ListCollectionView because the same data are displayed in several place in my application.
I've made a little sample to reproduce the problem, just drag the Name colum header to the group panel or click on it to sort the datas.

I don't understand what's happen :(

- Ced -

public class MainViewModel : ViewModelBase
{
    public MainViewModel()
    {
        this.Items = new ObservableCollection<Toto>();
        this.Items.Add(new Toto { Name = "AAAA", Num = 0 });
        this.Items.Add(new Toto { Name = "BBBB", Num = 1 });
        this.Items.Add(new Toto { Name = "CCCC", Num = 1 });
        this.Items.Add(new Toto { Name = "DDDD", Num = 0 });
        this.Items.Add(new Toto { Name = "EEEE", Num = 1 });
        this.Items.Add(new Toto { Name = "FFFF", Num = 0 });

        this.ItemsList = new ListCollectionView(this.Items);
    }

    private ObservableCollection<Toto> Items { get; set; }
    public ListCollectionView ItemsList { get; private set; }
}

public class Toto : ViewModelBase
{
    private string name;
    public string Name
    {
        get { return name; }
        set { name = value; this.RaisePropertyChanged("Name"); }
    }

    private bool isSelected;
    public bool IsSelected
    {
        get { return isSelected; }
        set { isSelected = value; this.RaisePropertyChanged("IsSelected"); }
    }

    private int num;

    public int Num
    {
        get { return num; }
        set { num = value; }
    }

}

 

<Window x:Class="MvvmLight1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
        Title="MainWindow"
        Height="300"
        Width="400">
    <Window.Resources>
        <ResourceDictionary>
            <Style TargetType="{x:Type telerik:GridViewRow}"
                   x:Uid="Style_6">
                <Setter x:Uid="Setter_19"
                        Property="IsSelected"
                        Value="{Binding IsSelected, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
                <Style.Triggers>
                    <Trigger x:Uid="Trigger_3"
                             Property="IsSelected"
                             Value="True">
                        <Setter x:Uid="Setter_20"
                                Property="Background"
                                Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
                    </Trigger>
                </Style.Triggers>
            </Style>
        </ResourceDictionary>
    </Window.Resources>

    <StackPanel>
        <Grid x:Name="LayoutRoot"
              HorizontalAlignment="Stretch"
              VerticalAlignment="Stretch">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
            </Grid.ColumnDefinitions>
            <telerik:RadGridView AutoGenerateColumns="true"
                                 HorizontalContentAlignment="Stretch"
                                 VerticalContentAlignment="Stretch"
                                 Name="Grid1"
                                 SelectionMode="Extended"
                                 ScrollViewer.IsDeferredScrollingEnabled="True"
                                 EnableRowVirtualization="True"
                                 RowDetailsVisibilityMode="Collapsed"
                                 ItemsSource="{Binding ItemsList}"/>

            <telerik:RadGridView Grid.Column="1"
                                 AutoGenerateColumns="true"
                                 HorizontalContentAlignment="Stretch"
                                 VerticalContentAlignment="Stretch"
                                 Name="Grid2"
                                 SelectionMode="Extended"
                                 ScrollViewer.IsDeferredScrollingEnabled="True"
                                 EnableRowVirtualization="True"
                                 RowDetailsVisibilityMode="Collapsed"
                                 ItemsSource="{Binding ItemsList}"/>
        </Grid>
    </StackPanel>
</Window>

[Dimitrina]

Hello Cedric,

I have created a sample project in order to reproduce the behavior that you describe (I am using the code that you have pasted). Unfortunately I was not able to.

May you please review the project that I have used for testing, and correct me where I am doing wrong trying to reproduce this InvalidOperationException?

Greetings,
Didie
the Telerik team

[Cedric]

-- snip --

[Cedric]

Hi Didie,

i can reproduce the problem with your project by referencing the telerik version on my computer : Dll version are 2010.2.924.40.
If i use you Dll i see no problem.

- Mins -

[Cedric]

I've updated to the last version of RadControl, and it solves my problem.

Thx

- Cedric -