WebDrillElements (Web API 2021)

```
public interface WebDrillElements
```
This interface can be used to construct a drill elements collection that can be set as a user filter while drilling.

Since:

MicroStrategy Web 7.3.1 or earlier

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`add(java.lang.String drillElement)`	Adds a drill element.
`void`	`clear()`	Clears the drill elements (user filter).

- Method Detail
  - add
```
void add(java.lang.String drillElement)
  throws java.lang.IllegalArgumentException
```
    Adds a drill element.
    
    Parameters:
    
    drillElement - The drill element to be added. This drill element can be obtained using WebHeader.getDrillElement().
    
    Throws:
    
    java.lang.IllegalArgumentException - If the drill element is invalid.
  - clear
```
void clear()
```
    Clears the drill elements (user filter).