public void SetContent(int Column, int Row, SaveItemInfo children) { ToolboxItem toolBoxItem; UIElement txt = (from model in this.Children.OfType <UIElement>() where Grid.GetColumn(model) == Column && Grid.GetRow(model) == Row select model).FirstOrDefault(); if (txt != null) { Children.Remove(txt); } if (IsEdit == true) { toolBoxItem = ToolboxItem.GetToolBoxItem(children); } else { toolBoxItem = ToolboxItem.GetGridChildrenPreview(children); } Grid.SetRow(toolBoxItem, Row); Grid.SetColumn(toolBoxItem, Column); Children.Add(toolBoxItem); }