Determines the final size and placement of the panel.
Assembly: PresentationFramework (in PresentationFramework.dll)
The DataGridCellsPanel class uses the method to lay out the cells that are visible. Cells that are not visible are virtualized.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2