The value of specifying to automatically change the case of value entered from data cell editor.
It is used as textInputCase property of DataColumn or textCase property of CellEditor.
| NORMAL | "normal" | Do not change. |
| UPPER | "upper" | Change to uppercase. |
| LOWER | "lower" | Change to lowercase. |
| DEFAULT | "default" | If CellEditor.textCase value is this one, it will follow DataColumn.textInputCase value. |