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DbSet<TEntity>.FindAsync Method
Definition
- Namespace:
- Microsoft.EntityFrameworkCore
- Assembly:
- Microsoft.EntityFrameworkCore.dll
- Package:
- Microsoft.EntityFrameworkCore v1.1.6
- Package:
- Microsoft.EntityFrameworkCore v10.0.0
- Package:
- Microsoft.EntityFrameworkCore v2.0.3
- Package:
- Microsoft.EntityFrameworkCore v2.1.11
- Package:
- Microsoft.EntityFrameworkCore v2.2.6
- Package:
- Microsoft.EntityFrameworkCore v3.0.0
- Package:
- Microsoft.EntityFrameworkCore v3.1.0
- Package:
- Microsoft.EntityFrameworkCore v5.0.0
- Package:
- Microsoft.EntityFrameworkCore v6.0.0
- Package:
- Microsoft.EntityFrameworkCore v7.0.0
- Package:
- Microsoft.EntityFrameworkCore v8.0.0
- Package:
- Microsoft.EntityFrameworkCore v9.0.0
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Overloads
| Name | Description |
|---|---|
| FindAsync(Object[]) |
Finds an entity with the given primary key values. If an entity with the given primary key values is being tracked by the context, then it is returned immediately without making a request to the database. Otherwise, a query is made to the database for an entity with the given primary key values and this entity, if found, is attached to the context and returned. If no entity is found, then null is returned. |
| FindAsync(Object[], CancellationToken) |
Finds an entity with the given primary key values. If an entity with the given primary key values is being tracked by the context, then it is returned immediately without making a request to the database. Otherwise, a query is made to the database for an entity with the given primary key values and this entity, if found, is attached to the context and returned. If no entity is found, then null is returned. |
FindAsync(Object[])
- Source:
- DbSet.cs
- Source:
- DbSet%60.cs
- Source:
- DbSet%60.cs
- Source:
- DbSet.cs
- Source:
- DbSet.cs
- Source:
- DbSet.cs
- Source:
- DbSet.cs
- Source:
- DbSet.cs
- Source:
- DbSet.cs
- Source:
- DbSet.cs
Finds an entity with the given primary key values. If an entity with the given primary key values is being tracked by the context, then it is returned immediately without making a request to the database. Otherwise, a query is made to the database for an entity with the given primary key values and this entity, if found, is attached to the context and returned. If no entity is found, then null is returned.
public virtual System.Threading.Tasks.Task<TEntity> FindAsync(params object[] keyValues);public virtual System.Threading.Tasks.ValueTask<TEntity?> FindAsync(params object?[]? keyValues);public virtual System.Threading.Tasks.ValueTask<TEntity> FindAsync(params object[] keyValues);abstract member FindAsync : obj[] -> System.Threading.Tasks.Task<'Entity (requires 'Entity : null)>
override this.FindAsync : obj[] -> System.Threading.Tasks.Task<'Entity (requires 'Entity : null)>abstract member FindAsync : obj[] -> System.Threading.Tasks.ValueTask<'Entity (requires 'Entity : null)>
override this.FindAsync : obj[] -> System.Threading.Tasks.ValueTask<'Entity (requires 'Entity : null)>Public Overridable Function FindAsync (ParamArray keyValues As Object()) As Task(Of TEntity)Public Overridable Function FindAsync (ParamArray keyValues As Object()) As ValueTask(Of TEntity)Parameters
- keyValues
- Object[]
The values of the primary key for the entity to be found.
Returns
The entity found, or null.
Remarks
See Using Find and FindAsync for more information and examples.
Applies to
FindAsync(Object[], CancellationToken)
- Source:
- DbSet.cs
- Source:
- DbSet%60.cs
- Source:
- DbSet%60.cs
- Source:
- DbSet.cs
- Source:
- DbSet.cs
- Source:
- DbSet.cs
- Source:
- DbSet.cs
- Source:
- DbSet.cs
- Source:
- DbSet.cs
- Source:
- DbSet.cs
Finds an entity with the given primary key values. If an entity with the given primary key values is being tracked by the context, then it is returned immediately without making a request to the database. Otherwise, a query is made to the database for an entity with the given primary key values and this entity, if found, is attached to the context and returned. If no entity is found, then null is returned.
public virtual System.Threading.Tasks.Task<TEntity> FindAsync(object[] keyValues, System.Threading.CancellationToken cancellationToken);public virtual System.Threading.Tasks.ValueTask<TEntity?> FindAsync(object?[]? keyValues, System.Threading.CancellationToken cancellationToken);public virtual System.Threading.Tasks.ValueTask<TEntity> FindAsync(object[] keyValues, System.Threading.CancellationToken cancellationToken);abstract member FindAsync : obj[] * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Entity (requires 'Entity : null)>
override this.FindAsync : obj[] * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Entity (requires 'Entity : null)>abstract member FindAsync : obj[] * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<'Entity (requires 'Entity : null)>
override this.FindAsync : obj[] * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<'Entity (requires 'Entity : null)>Public Overridable Function FindAsync (keyValues As Object(), cancellationToken As CancellationToken) As Task(Of TEntity)Public Overridable Function FindAsync (keyValues As Object(), cancellationToken As CancellationToken) As ValueTask(Of TEntity)Parameters
- keyValues
- Object[]
The values of the primary key for the entity to be found.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
The entity found, or null.
Exceptions
If the CancellationToken is canceled.
Remarks
See Using Find and FindAsync for more information and examples.
Applies to
Entity Framework
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