protected override void ProcessDragDrop(Point dropLocation, ISupportDrag dragObject)
{
GroupFieldDragDropContext dataContext1 = dragObject.GetDataContext() as GroupFieldDragDropContext;
if (dataContext1 != null)
{
dataContext1.ViewTemplate.GroupDescriptors.Remove(dataContext1.GroupDescription);
}
else
{
GridViewRowInfo dataContext2 = dragObject.GetDataContext() as GridViewRowInfo;
if (dataContext2 != null)
{
if (this.RowInfo.ViewTemplate.SortDescriptors.Count > 0 || this.RowInfo.ViewTemplate.GroupDescriptors.Count > 0)
{
return;
}
bool isDroppedAtLeft = RadGridViewDragDropService.IsDroppedAtTop(dropLocation, this.Size.Height);
GridViewTemplate viewTemplate = this.Data.ViewTemplate;
int targetIndex = viewTemplate.Rows.IndexOf(this.Data);
int draggedItemIndex = viewTemplate.Rows.IndexOf(dataContext2);
RadGridViewDragDropService.CalculateTargetIndex(isDroppedAtLeft, viewTemplate.RowCount, ref targetIndex, ref draggedItemIndex);
viewTemplate.Rows.Move(draggedItemIndex, targetIndex);
}
else
{
base.ProcessDragDrop(dropLocation, dragObject);
}
}
}
protected override void ProcessDragDrop(Point dropLocation, ISupportDrag dragObject)
{
GroupFieldDragDropContext dataContext = dragObject.GetDataContext() as GroupFieldDragDropContext;
if (dataContext != null)
{
dataContext.ViewTemplate.GroupDescriptors.Remove(dataContext.GroupDescription);
}
else
{
base.ProcessDragDrop(dropLocation, dragObject);
}
}
protected override void ProcessDragDrop(Point dropLocation, ISupportDrag dragObject)
{
object dataContext = dragObject.GetDataContext();
if (dataContext is GridViewDataColumn)
{
GridViewColumn gridViewColumn = dataContext as GridViewColumn;
GroupDescriptor groupDescription = new GroupDescriptor();
groupDescription.GroupNames.Add(new SortDescriptor(gridViewColumn.Name, ListSortDirection.Ascending));
if (TemplateGroupsElement.RaiseGroupByChanging(gridViewColumn.OwnerTemplate, groupDescription, NotifyCollectionChangedAction.Add))
{
return;
}
gridViewColumn.OwnerTemplate.DataView.GroupDescriptors.Add(groupDescription);
TemplateGroupsElement.RaiseGroupByChanged(gridViewColumn.OwnerTemplate, groupDescription, NotifyCollectionChangedAction.Add);
}
else
{
if (!(dataContext is GroupFieldDragDropContext))
{
return;
}
GroupFieldDragDropContext fieldDragDropContext = dataContext as GroupFieldDragDropContext;
SortDescriptor sortDescription = fieldDragDropContext.SortDescription;
GridViewTemplate viewTemplate = fieldDragDropContext.ViewTemplate;
GroupDescriptor groupDescription1 = fieldDragDropContext.GroupDescription;
if (TemplateGroupsElement.RaiseGroupByChanging(viewTemplate, groupDescription1, NotifyCollectionChangedAction.Batch))
{
return;
}
groupDescription1.GroupNames.Remove(sortDescription);
GroupDescriptor groupDescription2 = new GroupDescriptor();
groupDescription2.GroupNames.Add(sortDescription);
viewTemplate.GroupDescriptors.Add(groupDescription2);
if (groupDescription1.GroupNames.Count == 0)
{
viewTemplate.DataView.GroupDescriptors.Remove(groupDescription1);
}
TemplateGroupsElement.RaiseGroupByChanged(viewTemplate, groupDescription2, NotifyCollectionChangedAction.Batch);
}
}
private void ProcessGroupFieldDrop(Point dropLocation, GroupFieldDragDropContext context)
{
SortDescriptor sortDescription = context.SortDescription;
GridViewTemplate viewTemplate = context.ViewTemplate;
GroupDescriptor groupDescription = context.GroupDescription;
if (TemplateGroupsElement.RaiseGroupByChanging(viewTemplate, groupDescription, NotifyCollectionChangedAction.Batch) || this.ProcessGroupFieldDropOverride(dropLocation, context))
{
return;
}
groupDescription.GroupNames.Remove(sortDescription);
GroupDescriptor groupDescriptor = new GroupDescriptor();
groupDescriptor.GroupNames.Add(sortDescription);
RadGridViewDragDropService.InsertOnLeftOrRight <GroupDescriptor>(RadGridViewDragDropService.IsDroppedAtLeft(dropLocation, this.Size.Width), (Collection <GroupDescriptor>) this.description.Owner, this.description, groupDescriptor);
if (groupDescription.GroupNames.Count == 0)
{
viewTemplate.DataView.GroupDescriptors.Remove(groupDescription);
}
TemplateGroupsElement.RaiseGroupByChanged(viewTemplate, groupDescriptor, NotifyCollectionChangedAction.Batch);
}
protected override bool ProcessGroupFieldDropOverride(
Point dropLocation,
GroupFieldDragDropContext context)
{
SortDescriptor sortDescription = context.SortDescription;
GridViewTemplate viewTemplate = context.ViewTemplate;
GroupDescriptor groupDescription = context.GroupDescription;
groupDescription.GroupNames.Remove(sortDescription);
if (RadGridViewDragDropService.IsDroppedAtLeft(dropLocation, this.Size.Width))
{
this.Description.GroupNames.Insert(0, sortDescription);
}
else
{
this.Description.GroupNames.Add(sortDescription);
}
if (groupDescription.GroupNames.Count == 0)
{
viewTemplate.DataView.GroupDescriptors.Remove(groupDescription);
}
TemplateGroupsElement.RaiseGroupByChanged(context.ViewTemplate, context.GroupDescription, NotifyCollectionChangedAction.Batch);
return(true);
}
protected virtual void ProcessDragDropFieldContext(object dataContext)
{
GroupFieldDragDropContext fieldDragDropContext = dataContext as GroupFieldDragDropContext;
GroupDescriptor groupDescription = fieldDragDropContext.GroupDescription;
SortDescriptor sortDescription = fieldDragDropContext.SortDescription;
GridViewTemplate viewTemplate = fieldDragDropContext.ViewTemplate;
if (TemplateGroupsElement.RaiseGroupByChanging(this.template, groupDescription, NotifyCollectionChangedAction.Batch))
{
return;
}
if (groupDescription.GroupNames.Count == 1)
{
this.ViewTemplate.DataView.GroupDescriptors.Move(this.ViewTemplate.DataView.GroupDescriptors.IndexOf(groupDescription), this.ViewTemplate.DataView.GroupDescriptors.Count - 1);
}
else
{
groupDescription.GroupNames.Remove(sortDescription);
GroupDescriptor groupDescriptor = new GroupDescriptor();
groupDescriptor.GroupNames.Add(sortDescription);
this.ViewTemplate.DataView.GroupDescriptors.Add(groupDescriptor);
}
TemplateGroupsElement.RaiseGroupByChanged(this.template, groupDescription, NotifyCollectionChangedAction.Batch);
}
protected override bool ProcessGroupFieldDropOverride(
Point dropLocation,
GroupFieldDragDropContext context)
{
bool isDroppedAtLeft = RadGridViewDragDropService.IsDroppedAtLeft(dropLocation, this.Size.Width);
if (this.Description != context.GroupDescription)
{
SortDescriptor sortDescription = context.SortDescription;
GridViewTemplate viewTemplate = context.ViewTemplate;
context.GroupDescription.GroupNames.Remove(sortDescription);
if (context.GroupDescription.GroupNames.Count == 0)
{
viewTemplate.DataView.GroupDescriptors.Remove(context.GroupDescription);
}
RadGridViewDragDropService.InsertOnLeftOrRight <SortDescriptor>(isDroppedAtLeft, (Collection <SortDescriptor>) this.Description.GroupNames, this.sortDescription, sortDescription);
}
else
{
RadGridViewDragDropService.MoveOnLeftOrRight <SortDescriptor>(isDroppedAtLeft, (Collection <SortDescriptor>) this.Description.GroupNames, this.sortDescription, context.SortDescription);
}
TemplateGroupsElement.RaiseGroupByChanged(context.ViewTemplate, context.GroupDescription, NotifyCollectionChangedAction.Batch);
return(true);
}
protected virtual bool ProcessGroupFieldDropOverride(
Point dropLocation,
GroupFieldDragDropContext context)
{
return(false);
}