XPQueryExtensions.ToDictionaryAsync<T, TKey>(IQueryable<T>, Func<T, TKey>, IEqualityComparer<TKey>, CancellationToken) Method
Asynchronously enumerates a query and uses a key selector and an element selector to construct a Dictionary<TKey,TValue>.
Namespace: DevExpress.Xpo
Assembly: DevExpress.Xpo.v24.2.dll
NuGet Package: DevExpress.Xpo
#Declaration
public static Task<Dictionary<TKey, T>> ToDictionaryAsync<T, TKey>(
this IQueryable<T> query,
Func<T, TKey> keySelector,
IEqualityComparer<TKey> equalityComparer,
CancellationToken cancellationToken = default(CancellationToken)
)
#Parameters
Name | Type | Description |
---|---|---|
query | IQueryable<T> | An XPQuery |
key |
Func<T, TKey> | A function that acquires each persistent object’s key. |
equality |
IEquality |
A function that returns a result value for each persistent object. |
#Optional Parameters
Name | Type | Default | Description |
---|---|---|---|
cancellation |
Cancellation |
null | A Cancellation |
#Type Parameters
Name |
---|
T |
TKey |
#Returns
Type | Description |
---|---|
Task<Dictionary<TKey, T>> | A Task that returns a Dictionary |
See Also