'欄位斷行
DataGridView1.DefaultCellStyle.WrapMode = DataGridViewTriState.True
'自動設定高度
DataGridView1.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.DisplayedCells
'增加欄位
DataGridView1.Rows.Add()
DataGridView1.Item(0, 0).Value = "xxxx1" & vbNewLine & "xxxx3"

DataGridView1.Rows.Add()
DataGridView1.Item(0, 1).Value = "xxxx2" & vbNewLine