I want to insert a value in the cell of excel, I did it, Now i have to merge the next cell too..

For example, i have inserted "Sample" in the the cell (2,B+C)
2 -> Row.
B+C -> Columns to be merged.

In this way i inserted the value,
Code:
WorkSheets.Cells(2,B).value="Sample"
Next how to merge it,????