Hey, i have a RadTreeListView that i used to display my data, when i change the value of RowDetailsTemplate property in runtime, the event that called SelectionChanged fired more than 15 times, here is my code:

XAML Code:

<telerik:RadTreeListView ItemsSource="{Binding ItemSearchingResults}"
                                                 RowDetailsVisibilityMode="VisibleWhenSelected"
                                                 ScrollViewer.VerticalScrollBarVisibility="Auto"
                                                 RowDetailsTemplate="{Binding RowDetailsTemplate}"
                                                 ScrollViewer.HorizontalScrollBarVisibility="Auto"
                                                 SelectedItem="{Binding SelectedItem, Mode=TwoWay}"
                                                 CanUserFreezeColumns="False" SelectionMode="Single"
                                                 VerticalAlignment="Stretch" SelectionUnit="FullRow"
                                                 CanUserDeleteRows="False" GridLinesVisibility="Both"
                                                 CanUserInsertRows="False" AutoGenerateColumns="False"
                                                 AutoLoadHierarchy="True" HierarchyColumnIndex="1" HierarchyIndent="25"
                                                 RowIndicatorVisibility="Collapsed" ShowColumnFooters="False" HorizontalAlignment="Stretch">

                            <telerik:RadTreeListView.Columns>
                                <telerik:GridViewDataColumn DataMemberBinding="{Binding ItemNumber}" IsReadOnly="True"
                                                            Header="{x:Static tterpResources:UcItemSearching.Number}" Width="*" />
                                <telerik:GridViewDataColumn DataMemberBinding="{Binding ItemArabicName}" IsReadOnly="True"
                                                            Header="{x:Static tterpResources:UcItemSearching.ArabicName}" Width="*" />
                                <telerik:GridViewDataColumn DataMemberBinding="{Binding ItemEnglishName}" IsReadOnly="True"
                                                            Header="{x:Static tterpResources:UcItemSearching.EnglishName}" Width="*" />
                                <telerik:GridViewDataColumn DataMemberBinding="{Binding ItemGroupArabicName}" IsReadOnly="True"
                                                            Header="{x:Static tterpResources:UcItemSearching.Group}" Width="*" />
                                <telerik:GridViewDataColumn DataMemberBinding="{Binding ItemTypeArabicName}" IsReadOnly="True"
                                                            Header="{x:Static tterpResources:UcItemSearching.Type}" Width="*" />
                            </telerik:RadTreeListView.Columns>

                            <interactivity:Interaction.Triggers>
                                <interactivity:EventTrigger EventName="SelectionChanged">
                                    <interactions:CallMethodAction MethodName="OnSelectItemChanged" TargetObject="{Binding}" />
                                </interactivity:EventTrigger>
                            </interactivity:Interaction.Triggers>

                            <telerik:RadTreeListView.ChildTableDefinitions>
                                <telerik:TreeListViewTableDefinition ItemsSource="{Binding ChildItems, 
                                                                     RelativeSource={RelativeSource AncestorType=models:ItemSearchingModel}}" />
                            </telerik:RadTreeListView.ChildTableDefinitions>

                        </telerik:RadTreeListView>

C# Code:

public void OnSelectItemChanged()
        {
            if (SelectedItem == null || !SelectedItem.IsDataChanged) return;

            //Get child items of selected item.
            if (!SelectedItem.IsChildLoadedOnce)
            {
                SelectedItem.IsChildLoadedOnce = true;
                SelectedItem.ChildItems = GetChildItemsOfParentItem(SelectedItem.ItemTreeId);
            }

            //Get alternative items of selected item.
            if (!SelectedItem.IsAlternativeLoadedOnce)
            {
                SelectedItem.IsAlternativeLoadedOnce = true;
                SelectedItem.AlternativeItems = GetAlternativeItemsOfSelectedItem(SelectedItem.ItemTreeId);
            }

            RowDetailsTemplate = SelectedItem.AlternativeItems.Count > 0 ? Application.Current.FindResource("AlternativeItemsDataTemplate") as DataTemplate : null;
        }

        private ObservableCollection<ItemSearchingModel> GetChildItemsOfParentItem(long parentItemId)
        {
            var childItems = _erpEntities.ItemTrees.Where(itemTree => itemTree.ParentId == parentItemId);
            if (!childItems.Any()) return new ObservableCollection<ItemSearchingModel>();

            var childItemSearchingModelList = new ObservableCollection<ItemSearchingModel>();
            foreach (var childItemTree in childItems)
            {
                childItemSearchingModelList.Add(new ItemSearchingModel
                {
                    ItemTreeId = childItemTree.Id,
                    ItemNumber = childItemTree.Number,
                    ItemArabicName = childItemTree.NameArabic,
                    ItemEnglishName = childItemTree.NameEnglish,
                    ChildItems = new ObservableCollection<ItemSearchingModel>(),
                    AlternativeItems = new ObservableCollection<ItemSearchingModel>(),
                    ItemTypeArabicName = childItemTree.ItemsType != null ? childItemTree.ItemsType.NameArabic : string.Empty,
                    ItemTypeEnglishName = childItemTree.ItemsType != null ? childItemTree.ItemsType.NameEnglish : string.Empty,
                    ItemGroupArabicName = childItemTree.ItemsGroup != null ? childItemTree.ItemsGroup.NameArabic : string.Empty,
                    ItemGroupEnglishName = childItemTree.ItemsGroup != null ? childItemTree.ItemsGroup.NameEnglish : string.Empty
                });
            }
            return childItemSearchingModelList;
        }

        private ObservableCollection<ItemSearchingModel> GetAlternativeItemsOfSelectedItem(long selectedItemId)
        {
            //Get the child items.
            var alternativeItems = _erpEntities.AlternativeItems.Where(itemTree => itemTree.BasicItemTreeId == selectedItemId);
            if (!alternativeItems.Any()) return new ObservableCollection<ItemSearchingModel>();

            var alternativeItemsSearchingModelList = new ObservableCollection<ItemSearchingModel>();
            foreach (var childItemTree in alternativeItems)
            {
                alternativeItemsSearchingModelList.Add(new ItemSearchingModel
                {
                    ItemTreeId = childItemTree.Id,
                    IsAlternativeLoadedOnce = true,
                    ItemNumber = childItemTree.ItemTree.Number,
                    ItemArabicName = childItemTree.ItemTree.NameArabic,
                    ItemEnglishName = childItemTree.ItemTree.NameEnglish,
                    ChildItems = new ObservableCollection<ItemSearchingModel>(),
                    AlternativeItems = new ObservableCollection<ItemSearchingModel>(),
                    ItemTypeArabicName = childItemTree.ItemTree.ItemsType != null ? childItemTree.ItemTree.ItemsType.NameArabic : string.Empty,
                    ItemTypeEnglishName = childItemTree.ItemTree.ItemsType != null ? childItemTree.ItemTree.ItemsType.NameEnglish : string.Empty,
                    ItemGroupArabicName = childItemTree.ItemTree.ItemsGroup != null ? childItemTree.ItemTree.ItemsGroup.NameArabic : string.Empty,
                    ItemGroupEnglishName = childItemTree.ItemTree.ItemsGroup != null ? childItemTree.ItemTree.ItemsGroup.NameEnglish : string.Empty
                });
            }
            return alternativeItemsSearchingModelList;
        }

Hey,

I have RadTreeListView named ItemsTree and i have another RadTreeListView named ChildItemsTree, the ChildItemsTree is inside the RowDetailsTemplate of ItemsTree, when the user selects an item from the ChildItemsTree i noticed that the selected item of ItemsTree does not clear. what i want to do is to clear the selected items of ItemsTree when the user selects an item from the ChildItemsTree​ and vice versa.

Thanks in advance.

 Hello,

I was wondering if there was any new option in the control to modify at once several cells of a GridViewComboBoxColumn, as I am using the same ItemsSourceBinding for all rows of that column (in my GridView, the selection ​is: SelectionMode="Multiple" SelectionUnit="FullRow").

I found that as a string point, but is there some other builtin/custom option than that kind:

http://www.telerik.com/forums/editing-multiple-cells-at-once

Thanks,

Christophe

Hi, 

 I try to customize the appointment of a scheduleview. I use the following code to change the backgroud color. But I also need to change the background color when the appointment is selected. How can we change it ?

        <scheduleview:OrientedAppointmentItemStyleSelector x:Key="AppointmentItemStyleSelector">
            <scheduleview:OrientedAppointmentItemStyleSelector.VerticalStyle>
                <Style TargetType="scheduleview:AppointmentItem" BasedOn="{StaticResource AppointmentItemBaseStyle}">
                    <Setter Property="Background" Value="#C1D72E" />
                </Style>
            </scheduleview:OrientedAppointmentItemStyleSelector.VerticalStyle>
        </scheduleview:OrientedAppointmentItemStyleSelector>

Thanks

Marc

Hello,

When plotting a StepLineSeries onto a CategoricalAxis chart with only one single category we don't get the 'step' rendered for that value.

Is there a way to get this single value to show? Or is there another way to plot a straight line across the full width of a category at a specific value?

Thanks in advance for any help you can provide.

Team,

I want to disable the Floating Option for RadPane,but i shoud be able to drag a Pane from a Group and Dock to Left/Top/Right/Bottom/Center.I dont want to make it float.

PLease provide me solution to disable Floating and enable Docking.

 (Telerik Version-2012)

Thanks,

R.Suresh