RWControlGroupBy (Web API 2021)

```
public interface RWControlGroupBy
```
Represents a control group by node in the report writing document hierarchy. This node is used by selector controls targetting grids or panel stacks to do the filtering/selection of attributes and metrics

Since:

MicroStrategy Web 9.0.0

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`getDataFilterMode()`	Returns the filter mode for this Control Group By
`RWGroupByElements`	`getElements()`
`java.lang.String`	`getKey()`	Returns the node key of this object
`WebObjectInfo`	`getSource()`	Returns the `WebObjectInfo` that serves as the source for the selector control
`void`	`setDataFilterMode(int mode)`	Sets the filter mode for this Control Group By.

- Method Detail
  - getKey
```
java.lang.String getKey()
```
    Returns the node key of this object
  - getSource
```
WebObjectInfo getSource()
```
    Returns the WebObjectInfo that serves as the source for the selector control
  - setDataFilterMode
```
void setDataFilterMode(int mode)
```
    Sets the filter mode for this Control Group By. Does not support EnumWebControlDataFilterModes.WebControlDataFilterModeMixed
    
    Parameters:
    
    mode - int from EnumWebControlDataFilterModes
  - getDataFilterMode
```
int getDataFilterMode()
```
    Returns the filter mode for this Control Group By
    
    Returns:
    
    int from EnumWebControlDataFilterModes
  - getElements
```
RWGroupByElements getElements()
```
    Returns:
    
    the elements of control group by.