toOptionsJSON method
Implementation
@override
void toOptionsJSON(StringBuffer buffer) {
super.toOptionsJSON(buffer);
if (add != null) {
buffer.writeAll(['"add":', jsonEncode(add), ','], '');
}
if (afterUpdate != null) {
buffer.writeAll(['"afterUpdate":', jsonEncode(afterUpdate), ','], '');
}
if (click != null) {
buffer.writeAll(['"click":', jsonEncode(click), ','], '');
}
if (drag != null) {
buffer.writeAll(['"drag":', jsonEncode(drag), ','], '');
}
if (remove != null) {
buffer.writeAll(['"remove":', jsonEncode(remove), ','], '');
}
}