 | CondensedCollectionExtensionsAverage Method (CondensedCollectionNullableDecimal) |
[This is preliminary documentation and is subject to change.]
Computes the average of a sequence of nullable Decimal values. Optimized for a CondensedCollection.
Namespace: Condensed.Linq
Assembly: Condensed (in Condensed.dll) Version: 0.1.0.0 (0.1.0.0)
Syntaxpublic static Nullable<decimal> Average( this CondensedCollection<Nullable<decimal>> source )
Parameters
- source
- Type: CondensedCondensedCollectionNullableDecimal
A CondensedCollection of nullable Decimal values to calculate the average of.
Return Value
Type: NullableDecimalThe average of the sequence of values, or null if the source sequence is empty or contains only values that are null.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type CondensedCollectionNullableDecimal. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).Exceptions| Exception | Condition |
|---|---|
| ArgumentNullException | source is null |
| OverflowException | The sum of the elements in the sequence is larger than Decimal.MaxValue. |
Remarks
This implementation of Average() is specialized for a CondensedCollection and tries to
take advantage of the CondensedCollection's knowledge of unique values in order to improve performance.
If you would rather use the normal LINQ extension method then cast the CondensedCollection to an IListT
to use the Average(IEnumerableNullableDecimal) implementation.
See Also