DataServiceExtensions.CountDistinct Method
Definition
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Overloads
| CountDistinct<TSource,TTarget>(IEnumerable<TSource>, Func<TSource,TTarget>) |
Returns the distinct count of elements in a sequence after applying the projection function to each element. |
| CountDistinct<TSource,TTarget>(IQueryable<TSource>, Expression<Func<TSource,TTarget>>) |
Returns the distinct count of elements in a sequence after applying the projection function to each element. |
CountDistinct<TSource,TTarget>(IEnumerable<TSource>, Func<TSource,TTarget>)
Returns the distinct count of elements in a sequence after applying the projection function to each element.
public static int CountDistinct<TSource,TTarget> (this System.Collections.Generic.IEnumerable<TSource> source, Func<TSource,TTarget> selector);static member CountDistinct : seq<'Source> * Func<'Source, 'arget> -> int<Extension()>
Public Function CountDistinct(Of TSource, TTarget) (source As IEnumerable(Of TSource), selector As Func(Of TSource, TTarget)) As IntegerType Parameters
- TSource
The type of the elements of source
- TTarget
The type returned by the projection function represented in selector.
Parameters
- source
- IEnumerable<TSource>
A sequence of values of type TSource.
- selector
- Func<TSource,TTarget>
A transform function to apply to each element.
Returns
Distinct count of elements in a sequence after applying the projection function to each element.
Applies to
CountDistinct<TSource,TTarget>(IQueryable<TSource>, Expression<Func<TSource,TTarget>>)
Returns the distinct count of elements in a sequence after applying the projection function to each element.
public static int CountDistinct<TSource,TTarget> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TTarget>> selector);static member CountDistinct : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'arget>> -> int<Extension()>
Public Function CountDistinct(Of TSource, TTarget) (source As IQueryable(Of TSource), selector As Expression(Of Func(Of TSource, TTarget))) As IntegerType Parameters
- TSource
The type of the elements of source
- TTarget
The type returned by the projection function represented in selector.
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource.
- selector
- Expression<Func<TSource,TTarget>>
A projection function to apply to each element.
Returns
Distinct count of elements in a sequence after applying the projection function to each element.