ArcGIS Developer Help

IDataStatistics.UniqueValueCount Property

The number of unique values for the current sample.

[Visual Basic .NET]
Public ReadOnly Property UniqueValueCount As Integer

[C#]
public int UniqueValueCount {get;}

[C++]
HRESULT get_UniqueValueCount(
  System.Int32* Count
);

[C++]
Parameters
Count [out, retval]

  Count is a parameter of type long*

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

The UniqueValues property must be accessed prior to getting this property (in order to calculate the count) for a correct value to be returned.