Fills the specified shape with small tiles of an image. If you want to fill the shape with one large image, use the UserPicture method.
expression.UserTextured(TextureFile)
expression Required. An expression that returns a FillFormat object.
TextureFile Required String. The name of the picture file.
This example sets the fill format for chart two.
Charts(2).ChartArea.Fill.UserTextured "brick.gif"