Gets or sets the size of a grid’s cell. This is a dependency property.
NuGet Package: DevExpress.Wpf.Diagram
The size of a grid’s cell.
The grid is visible if the DiagramControl.ShowGrid property is set to true.
If the GridSize property is set to null, the grid size is automatically calculated based on the current zoom level (the value of the DiagramControl.ZoomFactor property).