public void AcceptDrag(IDragableObject dragObject, Point position)
{
DragObject obj = dragObject as DragObject;
if (obj == null)
{
return;
}
AgDataGridRow targetRow = GetRowAtPos(position);
if (targetRow == null)
{
return;
}
CorrectRowsOrder();
int targetSortOrder = ((DataItem)targetRow.DataContext).SortOrder;
int targetRowVisibleIndex = dataGrid.GetRowVisibleIndex(targetRow.Handle);
int draggedRowVisibleIndex = dataGrid.GetRowVisibleIndex(obj.Row.Handle);
((DataItem)obj.DataRow).SortOrder = targetSortOrder;
//change rows order
ChangeRowsOrder(targetRowVisibleIndex, draggedRowVisibleIndex);
//resort grid data
ResortGridData();
}
void OnNewDataRow(object sender, DataRowCreatedEventArgs e)
{
foreach (AgDataGridRow dataRow in dataRows)
{
dataRow.MouseLeftButtonDown -= new MouseButtonEventHandler(OnMouseLeftButtonDown);
}
dataRows.Clear();
AgDataGridRow row = e.Row as AgDataGridRow;
if (row != null)
{
row.MouseLeftButtonDown += new MouseButtonEventHandler(OnMouseLeftButtonDown);
}
}
public FrameworkElement CreateDragShape()
{
AgDataGridRow drag = new AgDataGridRow(this.row.Handle, this.source);
drag.Opacity = .85;
drag.Width = this.row.ActualWidth;
drag.Height = this.row.ActualHeight;
if (this.source.DataRowTemplate != null)
{
drag.Template = this.source.DataRowTemplate;
}
drag.ApplyTemplate();
VisualStateManager.GoToState(drag, "Focused", true);
return(drag);
}
protected virtual void StartDragging(AgDataGridRow row, Point point)
{
if (this.DataGrid == null)
{
return;
}
if (this.DragSurface == null)
{
return;
}
this.dragController = new DragControllerEx(
DropContainer,
new DragObject(row, DataGrid.GetDataRow(row.Handle), this.DataGrid),
this.DragSurface,
point,
new Point(this.DataGrid.Margin.Left, this.DataGrid.Margin.Top));
DragController.StartDragShift = AgDataGrid.DefaultStartDragShift;
DragController.ScrollOnDragging = null;
this.DataGrid.CaptureMouse();
}
public DragObject(AgDataGridRow row, object dataRow, AgDataGrid source)
{
this.source = source;
this.row = row;
this.dataRow = dataRow;
}
