| Overload | Description |
|---|---|
| CountFunction Constructor() | Initializes a new instance of the Count statistical function. |
| CountFunction Constructor(String,String) | Initializes a new instance of the CountFunction class specifying the unique property name from which the result of the function can be retrieved as well as the name of the column whose values will be used to calculate the result. |
| CountFunction Constructor(String,String,Boolean) | Initializes a new instance of the CountFunction class specifying the unique property name from which the result of the function can be retrieved, the name of the column whose values will be used to calculate the result, and indicating whether a null reference (Nothing in Visual Basic) and DbNull values are included. |