Class LookupExtensions
Denotes extensions to create a lookup
Inherited Members
Namespace: NMF.Expressions.Linq
Assembly: NMF.Expressions.Utilities.dll
Syntax
public static class LookupExtensionsMethods
| Edit this page View SourceToLookup<TSource, TKey>(IEnumerableExpression<TSource>, Expression<Func<TSource, TKey>>)
Creates a lookup of the given collection
Declaration
public static ILookupExpression<TSource, TKey> ToLookup<TSource, TKey>(this IEnumerableExpression<TSource> source, Expression<Func<TSource, TKey>> keySelector)Parameters
| Type | Name | Description |
|---|---|---|
| IEnumerableExpression<TSource> | source | The underlying source collection |
| Expression<Func<TSource, TKey>> | keySelector | A predicate to select the key of an element |
Returns
| Type | Description |
|---|---|
| ILookupExpression<TSource, TKey> | A lookup expression |
Type Parameters
| Name | Description |
|---|---|
| TSource | The source type of elements |
| TKey | The key type |
ToLookup<TSource, TKey>(INotifyEnumerable<TSource>, Expression<Func<TSource, TKey>>)
Creates a lookup of the given collection
Declaration
public static INotifyLookup<TSource, TKey> ToLookup<TSource, TKey>(this INotifyEnumerable<TSource> source, Expression<Func<TSource, TKey>> keySelector)Parameters
| Type | Name | Description |
|---|---|---|
| INotifyEnumerable<TSource> | source | The underlying source collection |
| Expression<Func<TSource, TKey>> | keySelector | A predicate to select the key of an element |
Returns
| Type | Description |
|---|---|
| INotifyLookup<TSource, TKey> | A lookup expression |
Type Parameters
| Name | Description |
|---|---|
| TSource | The source type of elements |
| TKey | The key type |