[]
Gets or sets the width (in pixels) of the object.
Use this method to retrieve the pixel-based width of a floating object such as a shape, chart, or picture.
double WidthInPixel { get; set; }
Property WidthInPixel As Double
IContainer container = worksheet.Shapes.AddShape(AutoShapeType.Rectangle, 20, 30, 120, 60);
double width = container.WidthInPixel;