Expands a specified row in TreeGrid component.
|row (optional)||Object||The row to be expanded|
This method does not return a value.
A call to this method will trigger beforeExpand and afterExpand events. By handling beforeExpand event you can prevent expanding of specified row using your own custom conditions.
An row can also become expanded by setting the expanded variable of row object to true. However, in this case only afterExpand event will be fired.
If there is no specified row, all rows in TreeGrid will become expanded.
Supported in: v1.0.