public static void Detach()
{
if (ExprEditorDragDropManager.DragDropManagerInstance == null)
{
return;
}
ExprEditorDragDropManager.DragDropManagerInstance.Dispose();
ExprEditorDragDropManager.DragDropManagerInstance = (ExprEditorDragDropManager)null;
}
private void listControl_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left || !this.listItemClicked)
{
return;
}
if (!this.dragging && ExprEditorDragDropManager.IsRealDragging(e.Location, this.downPt))
{
RadElement elementAtPoint = this.treeControl.ElementTree.GetElementAtPoint(e.Location);
TreeNodeElement treeNodeElement = elementAtPoint as TreeNodeElement;
if (treeNodeElement == null && elementAtPoint != null)
{
treeNodeElement = elementAtPoint.FindDescendant <TreeNodeElement>();
}
if (treeNodeElement == null)
{
return;
}
this.treeControl.SelectedNode = treeNodeElement.Data;
this.dragging = true;
this.treeControl.Capture = true;
this.treeControl.FindForm().Cursor = Cursors.No;
this.outlineForm = TelerikHelper.CreateOutlineForm();
this.outlineForm.ShowInTaskbar = false;
this.outlineForm.ShowIcon = false;
this.outlineForm.BackgroundImage = (Image)treeNodeElement.GetAsBitmap(Brushes.Transparent, 0.0f, new SizeF(1f, 1f));
this.outlineForm.FormBorderStyle = FormBorderStyle.None;
this.outlineForm.Size = this.outlineForm.BackgroundImage.Size;
this.outlineForm.MinimumSize = this.outlineForm.BackgroundImage.Size;
this.outlineForm.Location = new Point(Cursor.Position.X + 2, Cursor.Position.Y + 2);
this.outlineForm.TopMost = true;
this.outlineForm.Show();
}
else
{
if (!this.dragging)
{
return;
}
Point mousePosition = Control.MousePosition;
Point client = this.treeControl.FindForm().PointToClient(mousePosition);
this.outlineForm.Location = new Point(mousePosition.X + 5, mousePosition.Y + 5);
if (this.textBox.Bounds.Contains(client))
{
this.treeControl.FindForm().Cursor = Cursors.Arrow;
}
else
{
this.treeControl.FindForm().Cursor = Cursors.No;
}
}
}
public static void Attach(RadTreeView listControl, RadTextBox textBox)
{
ExprEditorDragDropManager.Detach();
ExprEditorDragDropManager.DragDropManagerInstance = new ExprEditorDragDropManager(listControl, textBox);
}
