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);
}
}
}
public override Point GetDragHintLocation(ISupportDrop dropTarget, Point mousePosition)
{
GridHeaderCellElement headerCellElement = dropTarget as GridHeaderCellElement;
Rectangle boundingRectangle1 = headerCellElement.ControlBoundingRectangle;
Rectangle boundingRectangle2 = headerCellElement.RowElement.TableElement.ViewElement.ControlBoundingRectangle;
if (boundingRectangle1.Right > boundingRectangle2.Right)
{
boundingRectangle1.Width -= boundingRectangle1.Right - boundingRectangle2.Right;
}
if (boundingRectangle1.X < boundingRectangle2.X)
{
boundingRectangle1.Width -= boundingRectangle2.X - boundingRectangle1.X;
boundingRectangle1.X = boundingRectangle2.X;
}
Rectangle screen = this.GridViewElement.ElementTree.Control.RectangleToScreen(boundingRectangle1);
Size size = Size.Empty;
if (this.DragHint.Image != null)
{
size = this.DragHint.Image.Size;
}
Padding margins = this.DragHint.Margins;
Point dropLocation = headerCellElement.PointFromScreen(mousePosition);
if (this.orientation == Orientation.Vertical)
{
return(new Point((RadGridViewDragDropService.IsDroppedAtLeft(dropLocation, headerCellElement.Size.Width) ? screen.X : screen.Right) - size.Width / 2, screen.Y - margins.Top));
}
return(new Point(screen.X - margins.Left, screen.Bottom - margins.Top - size.Height / 2));
}
protected override void ProcessDragDrop(Point dropLocation, ISupportDrag dragObject)
{
object dataContext = dragObject.GetDataContext();
RadPosition dropPosition = RadGridViewDragDropService.GetDropPosition(dropLocation, this.Size);
ColumnGroupsViewDefinition viewDefinition = this.ViewTemplate.ViewDefinition as ColumnGroupsViewDefinition;
if (viewDefinition != null)
{
if (dataContext is GridViewColumnGroup)
{
((GridViewColumnGroup)dataContext).IsVisible = true;
this.TableElement.UpdateLayout();
if (!this.ViewTemplate.AllowColumnReorder)
{
return;
}
this.DropColumnGroup(viewDefinition, (GridViewColumnGroup)dataContext, dropPosition);
return;
}
if (dataContext is GridViewDataColumn || dataContext is GridViewGroupColumn)
{
this.DropInColumnGroupsView(viewDefinition, dataContext as GridViewColumn, dropPosition);
return;
}
}
base.ProcessDragDrop(dropLocation, dragObject);
}
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);
}
public override Point GetDragHintLocation(ISupportDrop dropTarget, Point mousePosition)
{
GridRowElement gridRowElement = dropTarget as GridRowElement;
Rectangle screen = this.GridViewElement.ElementTree.Control.RectangleToScreen(gridRowElement.ControlBoundingRectangle);
Size size = this.DragHint.Image.Size;
Padding margins = this.DragHint.Margins;
int num = RadGridViewDragDropService.IsDroppedAtTop(gridRowElement.PointFromScreen(mousePosition), gridRowElement.Size.Height) ? screen.Y : screen.Bottom;
return(new Point(screen.X - margins.Left, num - size.Height / 2));
}
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);
}
internal static void MoveOnLeftOrRight <T>(
bool isDroppedAtLeft,
Collection <T> collection,
T targetItem,
T draggedItem)
{
int targetIndex = collection.IndexOf(targetItem);
int draggedItemIndex = collection.IndexOf(draggedItem);
int count = collection.Count;
RadGridViewDragDropService.CalculateTargetIndex(isDroppedAtLeft, count, ref targetIndex, ref draggedItemIndex);
RadGridViewDragDropService.Move <T>(collection, draggedItemIndex, targetIndex);
}
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);
}
public override void UpdateDropContext(
ISupportDrag draggedContext,
ISupportDrop dropTarget,
Point?location)
{
GridColumnGroupCellElement groupCellElement = dropTarget as GridColumnGroupCellElement;
GridHeaderCellElement headerCellElement = dropTarget as GridHeaderCellElement;
GridViewGroupColumn gridViewGroupColumn = groupCellElement != null ? groupCellElement.ColumnInfo as GridViewGroupColumn : (GridViewGroupColumn)null;
if (headerCellElement == null || !location.HasValue)
{
this.orientation = Orientation.Vertical;
}
else
{
if (headerCellElement.RowElement == null || headerCellElement.RowElement.TableElement == null)
{
return;
}
Rectangle boundingRectangle1 = headerCellElement.ControlBoundingRectangle;
Rectangle boundingRectangle2 = headerCellElement.RowElement.TableElement.ViewElement.ControlBoundingRectangle;
if (boundingRectangle1.Right > boundingRectangle2.Right)
{
boundingRectangle1.Width -= boundingRectangle1.Right - boundingRectangle2.Right;
}
if (boundingRectangle1.X < boundingRectangle2.X)
{
boundingRectangle1.Width -= boundingRectangle2.X - boundingRectangle1.X;
boundingRectangle1.X = boundingRectangle2.X;
}
if ((RadGridViewDragDropService.GetDropPosition(headerCellElement.PointFromScreen(location.Value), headerCellElement.Size) & RadPosition.Bottom) != RadPosition.None && (gridViewGroupColumn != null && gridViewGroupColumn.Group.Rows.Count == 0 && draggedContext.GetDataContext() is GridViewGroupColumn || gridViewGroupColumn != null && gridViewGroupColumn.Group.Groups.Count == 0 && draggedContext.GetDataContext() is GridViewDataColumn || gridViewGroupColumn == null))
{
this.orientation = Orientation.Horizontal;
}
else
{
this.orientation = Orientation.Vertical;
}
}
}
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 override void HandleMouseMove(Point mousePosition)
{
ISupportDrop dropTarget = this.DropTarget;
this.AutoScroll();
base.HandleMouseMove(mousePosition);
RadElement radElement = dropTarget as RadElement;
RadPosition radPosition = RadPosition.None;
if (radElement != null)
{
radPosition = RadGridViewDragDropService.GetDropPosition(radElement.PointFromScreen(mousePosition), radElement.ControlBoundingRectangle.Size);
}
if (dropTarget != this.DropTarget || dropTarget == null || radPosition != this.lastDropPosition)
{
this.SetDragDropBehavior();
}
this.lastDropPosition = radPosition;
if (this.dragHintWindow == null)
{
return;
}
this.UpdateDragHintLocation(mousePosition);
}
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 override Image GetDragHintCore()
{
return((Image)RadGridViewDragDropService.GetDragImageHint(this.TextAlignment, base.GetDragHintCore() as Bitmap, this.Layout.RightPart.Bounds, 100));
}