AcDbTable::createContent

int createContent(
    int nRow, 
    int nCol, 
    int nIndex
);

This function is called to create additional contents for a cell; one is created by default from the constructor.

Returns the index of the created content.

Parameters	Description
nRow	Input row index. It should be more than or equal to 0 and less than the number of rows.
nCol	Input column index. It should be more than or equal to 0 and less than the number of columns.
nIndex	Input index at which to create the new content. It can be -1 to append the new content.