protected override void ProcessColumnDrop(Point dropLocation, GridViewColumn column)
{
if (TemplateGroupsElement.RaiseGroupByChanging(this.TemplateElement.ViewTemplate, this.Description, NotifyCollectionChangedAction.ItemChanged))
{
return;
}
RadGridViewDragDropService.InsertOnLeftOrRight <SortDescriptor>(RadGridViewDragDropService.IsDroppedAtLeft(dropLocation, this.Size.Width), (Collection <SortDescriptor>) this.Description.GroupNames, this.sortDescription, new SortDescriptor(column.Name, ListSortDirection.Ascending));
TemplateGroupsElement.RaiseGroupByChanged(this.TemplateElement.ViewTemplate, this.Description, NotifyCollectionChangedAction.ItemChanged);
}
protected virtual void ProcessColumnDrop(Point dropLocation, GridViewColumn column)
{
GroupDescriptor groupDescriptor = new GroupDescriptor();
groupDescriptor.GroupNames.Add(new SortDescriptor(column.Name, ListSortDirection.Ascending));
if (TemplateGroupsElement.RaiseGroupByChanging(this.templateElement.ViewTemplate, groupDescriptor, NotifyCollectionChangedAction.Add))
{
return;
}
RadGridViewDragDropService.InsertOnLeftOrRight <GroupDescriptor>(RadGridViewDragDropService.IsDroppedAtLeft(dropLocation, this.Size.Width), (Collection <GroupDescriptor>) this.description.Owner, this.description, groupDescriptor);
TemplateGroupsElement.RaiseGroupByChanged(this.templateElement.ViewTemplate, groupDescriptor, NotifyCollectionChangedAction.Add);
}
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)
{
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);
}