EXT JS でこのような行セルをマージする方法を理解しようとしています。誰でも例を挙げてもらえますか?
Customer | Product | QTY | Model | Price
++++++++++++++++++++++++++++++++++++++++++++++++++++
| | 2 | 2 | 100
Acme | Mixer | 1 |17 | 200
| | 2 |33 | 50
====================================================
| | 1 | 2 | 10
Toro | Mower | 4 |14 | 20
| | 3 |31 | 5
====================================================