set Top Left Corner
@CanIgnoreReturnValue
Sets the corner treatment for the top left corner.
Parameters
corner Family
the family to use to create the corner treatment
corner Size
the size to use for the corner
@CanIgnoreReturnValue
Sets the corner treatment for the top left corner.
Parameters
corner Family
the family to use to create the corner treatment
corner Size
the CornerSize to use for the corner
@CanIgnoreReturnValue
Sets the corner treatment for the top left corner.
Parameters
top Left Corner
the desired treatment.