Migrate to new DragDropManager

[Yonggu Kang]

Hi telerik,

I've used drag and drop from radwindow to radscheduler without problem utill 2012 Q3,
and now migrate to new drag and drop manager.

I changed DragQuery of RadGridView into new DragInitialize and event fires fine when start drag,
however can't drop in scheduleview nor drag cursor displayed. ScheduleViewDragDropBehavior
of scheduleview is not fired as well regardless of AllowDrop=ture setting in schedulerview.

My code is as follows;

/// GridView xaml for drag

                            <telerik:RadGridView.RowStyle>
                                <Style TargetType="telerik:GridViewRow">
                                    <Setter Property="telerik:RadDragAndDropManager.AllowDrag" Value="True" />
                                </Style>
                            </telerik:RadGridView.RowStyle>

/// GridView events

            DragDropManager.AddDragInitializeHandler(this.prodGridView, OnDragInitialize);
            DragDropManager.AddGiveFeedbackHandler(this.prodGridView, OnGiveFeedback);

        private void OnDragInitialize(object sender, DragInitializeEventArgs args)
        {
            args.AllowedEffects = DragDropEffects.All;
            var payload = DragDropPayloadManager.GeneratePayload(null);
            args.Data = ((FrameworkElement)args.OriginalSource).DataContext;
            args.DragVisual = new ContentControl { Content = args.Data, ContentTemplate = this.Resources  ["MachineTemplate"] as DataTemplate };
        }

/// schedule view xaml

 <telerik:RadScheduleView x:Name="workSkdView" AppointmentsSource="{Binding ProdWorkSkdCollection}"
                                     SpecialSlotStyleSelector="{StaticResource SpecialSlotStyleSelector}"
                                     SpecialSlotsSource="{Binding SpecialSlots}" AllowDrop="True"
                                     CurrentDate="{Binding Path=CurrentDate}">

                <telerik:RadScheduleView.ViewDefinitions>
                    <telerik:WeekViewDefinition DayStartTime="08:00:00" DayEndTime="23:59:59" CalendarWeekRule="FirstFourDayWeek"
                                                MajorTickLength="1h" MinorTickLength="30min" StretchGroupHeaders="True" WeekGroupHeaderStringFormat="{}{1:MM}월 {0}주차 " />

                </telerik:RadScheduleView.ViewDefinitions>

                <telerik:RadScheduleView.DragDropBehavior>
                    <my:WorkSkdDragDropBehavior />
                </telerik:RadScheduleView.DragDropBehavior>
.
.

Behavior is same with the one you provide in sample.
What am I missing ?  

Thank you in advance.

Kang 

[Nick]

Hello,

You have to set the DragDropManager.AllowDrag property to true on the elements you want to drag, otherwise, no drag action will be initiated whatsoever.

Hope this makes sense! 

Kind regards,
Nik
the Telerik team

[Yonggu Kang]

Hi, Nik,

Sorry to come back late.
As I stated on code snippet, I already set AllowDarg as true in GridView whcih is the source of drag & drop.

Kang

[Yonggu Kang]

[Nick]

Hello,

I honestly cannot say what goes wrong based on the information provided. Perhaps if you share your Drag handlers, or send a sample project we  can find the cause of this behavior. 

Hope this makes sense! 

Regards,
Nik
Telerik