C1.LiveLinq.Indexing.SubindexCollection-1.Contains
Contains Method
Contains(LambdaExpression)
Determines whether a subindex with the specified key selector exists in the collection.
Declaration
public bool Contains(LambdaExpression keySelector)Parameters
| Type | Name | Description |
|---|---|---|
| LambdaExpression | keySelector | Key selector expression of a subindex, see KeySelector. |
Returns
| Type | Description |
|---|---|
| bool | true if a subindex with the specified key selector is found in the collection; otherwise, false. |
Contains<TKey>(Expression<Func<T, TKey>>)
Determines whether a subindex with the specified key selector exists in the collection.
Declaration
public bool Contains<TKey>(Expression<Func<T, TKey>> keySelector)Parameters
| Type | Name | Description |
|---|---|---|
| Expression<Func<T, TKey>> | keySelector | Key selector expression of a subindex, see KeySelector. |
Returns
| Type | Description |
|---|---|
| bool | true if a subindex with the specified key selector is found in the collection; otherwise, false. |
Type Parameters
| Name | Description |
|---|---|
| TKey | The type of the subindex key. |