https://learn.microsoft.com/en-us/dotnet/api/system.windows.controls.grid.showgridlinesproperty?view=netframework-4.8.1&viewFallbackFrom=windowsdesktop-10.0
Grid.ShowGridLinesProperty Field (System.Windows.Controls) | Microsoft Learn
Identifies the ShowGridLines dependency property.
field systemgridwindowscontrolsmicrosoft