Hi,

Thanks for such a great help. Now one thing more which i want to discuss about multiple selection of parent and child node. I am using checkbox in parent and child node. Now how I collect selected Parent and child node using MVVM.

Any help would be a very appreciate.

Thanks

Hi,

Thank you for your reply. In order to bind the selected items from the XamDataTree to your view model, you need to define a new property in your view model, which type is array of obejcts.

I am attaching a modified version of my sample application(DataTree_VM_2.zip) in order to demonstrate it.

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

Hi,

Thanks for that. But SelectedDataItems property giving null data, We have set this property in view Model, but not getting selected data items its giving null value.

Is there any missing, Please let us aware about that.

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.

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