Hello Pri,

I am just checking if you require any further assistance on the matter.

Hi Pri,

I believe that this issue occurs because your underlying collection is not of type array of objects.

Let me know, if you need any further assistance on this matter.

Hi,

I have checked but still I am getting null value. Is there any way to select multiple Items.

  <ig:XamDataTree x:Name="ScreenTree" ItemsSource="{Binding Path=ScreenMenu}" SelectedDataItems="{Binding Path=SelectedScrrenItems}" Grid.Column="4" Grid.RowSpan="6" Grid.Row="1" NodeLineVisibility="Visible"
                            IsExpandedMemberPath="IsExpanded">
                    <!-- Enable Check Boxes-->
                    <ig:XamDataTree.CheckBoxSettings>
                        <ig:CheckBoxSettings CheckBoxVisibility="Visible"                     
                    />
                    </ig:XamDataTree.CheckBoxSettings>
                    <ig:XamDataTree.SelectionSettings>
                        <ig:TreeSelectionSettings NodeSelection="Multiple"/>
                    </ig:XamDataTree.SelectionSettings>
                    <ig:XamDataTree.GlobalNodeLayouts>
                        <ig:NodeLayout Key="Children" TargetTypeName="GroupMenuModel"
                     DisplayMemberPath="Menu_Name"/>
                    </ig:XamDataTree.GlobalNodeLayouts>
                </ig:XamDataTree>

Is there any mistake than please suggest us.

Thanks

Hi,

Yes I have checked, exactly as in your sample, SelectedDataItems property not giving selectedItems value, Its giving Null value.

 <ig:XamDataTree x:Name="ScreenTree" ItemsSource="{Binding Path=ScreenMenu}" SelectedDataItems="{Binding Path=SelectedScrrenItems}" Grid.Column="4" Grid.RowSpan="6" Grid.Row="1" NodeLineVisibility="Visible"
                            IsExpandedMemberPath="IsExpanded">
                    <!-- Enable Check Boxes-->
                    <ig:XamDataTree.CheckBoxSettings>
                        <ig:CheckBoxSettings CheckBoxVisibility="Visible"                     
                    />
                    </ig:XamDataTree.CheckBoxSettings>
                    <ig:XamDataTree.SelectionSettings>
                        <ig:TreeSelectionSettings NodeSelection="Multiple"/>
                    </ig:XamDataTree.SelectionSettings>
                    <ig:XamDataTree.GlobalNodeLayouts>
                        <ig:NodeLayout Key="Children" TargetTypeName="GroupMenuModel"
                     DisplayMemberPath="Menu_Name"/>                     
                    </ig:XamDataTree.GlobalNodeLayouts>
                </ig:XamDataTree>

And I have set SelectedDataItems property in view Model I have added Property.

 private ObservableCollection<GroupMenuModel> _SelectedScrrenItems;
        public ObservableCollection<GroupMenuModel> SelectedScrrenItems
        {
            get { return _SelectedScrrenItems; }
            set
            {
                if (_SelectedScrrenItems != value)
                {
                    _SelectedScrrenItems = value;
                    OnPropertyChanged("SelectedScrrenItems");
                }
            }
        }

But when I call SelectedScrrenItems its giving null value.Event in your sample I am not getting to fetch Selected Items.

Please suggest if i am wrong anywhere, your suggestion would be a appreciate for us.

Thanks

Hello Pri,

You can see how exactly I have implement the same in my sample application because everything works correctly there.

I believe that you are missing something.