when poi merges the cells of a table in word, cross-row merging can be done correctly, while cross-column merging fails. The following is the code for merging columns
public void mergeCellsHorizontal(XWPFTable table, int row, int fromCell, int toCell) {
for (int cellIndex = fromCell; cellIndex <= toCell; cellIndexPP) {
XWPFTableCell cell = table.getRow(row).getCell(cellIndex);
if ( cellIndex == fromCell ) {
// The first merged cell is set with RESTART merge value
cell.getCTTc().addNewTcPr().addNewHMerge().setVal(STMerge.RESTART);
} else {
// Cells which join (merge) the first one, are set with CONTINUE
cell.getCTTc().addNewTcPr().addNewHMerge().setVal(STMerge.CONTINUE);
}
}
} do you know why?