Parameters
- elementStyle
- A TableElementStyle object.
- isTop
- Specifies the top location for inner border merging
- isBottom
- Specifies the bottom location for inner border merging
- isLeft
- Specifies the left location for inner border merging
- isRight
- Specifies the right location for inner border merging
Return Value
True if style is merged, false if there is no style able to merge in (mean full style set for parent).