WireGridVisual3DIsClosed Property

Gets or sets a Boolean that specifies if a rectangle is drawn around wire grid to close the grid. When this WireGridVisual3D also shows major lines (MajorLinesFrequency > 0), then the line thickness and color of the closing rectangle is specified with MajorLineColor and MajorLineThickness properties instead of LineColor and LineThickness properties. Default value is false.

public bool IsClosed { get; set; }