LocalView<TEntity>.FindEntry Method
Definition
Important
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Overloads
| FindEntry(IEnumerable<IProperty>, IEnumerable<Object>) |
Returns an EntityEntry<TEntity> for the first entity being tracked by the context where the value of the given property matches the given values. The entry provide access to change tracking information and operations for the entity. |
| FindEntry(IEnumerable<String>, IEnumerable<Object>) |
Returns an EntityEntry<TEntity> for the first entity being tracked by the context where the value of the given property matches the given values. The entry provide access to change tracking information and operations for the entity. |
| FindEntry<TKey>(TKey) |
Finds an EntityEntry<TEntity> for the entity with the given primary key value in the change tracker, if it is
being tracked. |
| FindEntry<TProperty>(IProperty, TProperty) |
Returns an EntityEntry<TEntity> for the first entity being tracked by the context where the value of the given property matches the given value. The entry provide access to change tracking information and operations for the entity. |
| FindEntry<TProperty>(String, TProperty) |
Returns an EntityEntry<TEntity> for the first entity being tracked by the context where the value of the given property matches the given value. The entry provide access to change tracking information and operations for the entity. |
FindEntry(IEnumerable<IProperty>, IEnumerable<Object>)
Returns an EntityEntry<TEntity> for the first entity being tracked by the context where the value of the given property matches the given values. The entry provide access to change tracking information and operations for the entity.
public virtual Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<TEntity>? FindEntry (System.Collections.Generic.IEnumerable<Microsoft.EntityFrameworkCore.Metadata.IProperty> properties, System.Collections.Generic.IEnumerable<object?> propertyValues);abstract member FindEntry : seq<Microsoft.EntityFrameworkCore.Metadata.IProperty> * seq<obj> -> Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<'Entity (requires 'Entity : null)>
override this.FindEntry : seq<Microsoft.EntityFrameworkCore.Metadata.IProperty> * seq<obj> -> Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<'Entity (requires 'Entity : null)>Public Overridable Function FindEntry (properties As IEnumerable(Of IProperty), propertyValues As IEnumerable(Of Object)) As EntityEntry(Of TEntity)Parameters
- properties
- IEnumerable<IProperty>
The properties to match.
- propertyValues
- IEnumerable<Object>
The values of the properties to match.
Returns
An entry for the entity found, or null.
Remarks
This method is frequently used to get the entity with a given non-null foreign key, primary key, or alternate key values. Lookups using a key property like this are more efficient than lookups on other property value.
By default, accessing Local will call DetectChanges() to ensure that all entities searched and returned are up-to-date. Calling this method will not result in another call to DetectChanges(). Since this method is commonly used for fast lookups, consider reusing the Local object for multiple lookups and/or disabling automatic detecting of changes using AutoDetectChangesEnabled.
See EF Core change tracking for more information and examples.
Applies to
FindEntry(IEnumerable<String>, IEnumerable<Object>)
Returns an EntityEntry<TEntity> for the first entity being tracked by the context where the value of the given property matches the given values. The entry provide access to change tracking information and operations for the entity.
public virtual Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<TEntity>? FindEntry (System.Collections.Generic.IEnumerable<string> propertyNames, System.Collections.Generic.IEnumerable<object?> propertyValues);abstract member FindEntry : seq<string> * seq<obj> -> Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<'Entity (requires 'Entity : null)>
override this.FindEntry : seq<string> * seq<obj> -> Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<'Entity (requires 'Entity : null)>Public Overridable Function FindEntry (propertyNames As IEnumerable(Of String), propertyValues As IEnumerable(Of Object)) As EntityEntry(Of TEntity)Parameters
- propertyNames
- IEnumerable<String>
The name of the properties to match.
- propertyValues
- IEnumerable<Object>
The values of the properties to match.
Returns
An entry for the entity found, or null.
Remarks
This method is frequently used to get the entity with a given non-null foreign key, primary key, or alternate key values. Lookups using a key property like this are more efficient than lookups on other property value.
By default, accessing Local will call DetectChanges() to ensure that all entities searched and returned are up-to-date. Calling this method will not result in another call to DetectChanges(). Since this method is commonly used for fast lookups, consider reusing the Local object for multiple lookups and/or disabling automatic detecting of changes using AutoDetectChangesEnabled.
See EF Core change tracking for more information and examples.
Applies to
FindEntry<TKey>(TKey)
Finds an EntityEntry<TEntity> for the entity with the given primary key value in the change tracker, if it is
being tracked. null is returned if no entity with the given key value is being tracked.
This method never queries the database.
public virtual Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<TEntity>? FindEntry<TKey> (TKey keyValue);abstract member FindEntry : 'Key -> Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<'Entity (requires 'Entity : null)>
override this.FindEntry : 'Key -> Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<'Entity (requires 'Entity : null)>Public Overridable Function FindEntry(Of TKey) (keyValue As TKey) As EntityEntry(Of TEntity)Type Parameters
- TKey
The type of the primary key property.
Parameters
- keyValue
- TKey
The value of the primary key for the entity to be found.
Returns
An entry for the entity found, or null.
Remarks
By default, accessing Local will call DetectChanges() to ensure that all entities searched and returned are up-to-date. Calling this method will not result in another call to DetectChanges(). Since this method is commonly used for fast lookups, consider reusing the Local object for multiple lookups and/or disabling automatic detecting of changes using AutoDetectChangesEnabled.
See EF Core change tracking for more information and examples.
Applies to
FindEntry<TProperty>(IProperty, TProperty)
Returns an EntityEntry<TEntity> for the first entity being tracked by the context where the value of the given property matches the given value. The entry provide access to change tracking information and operations for the entity.
public virtual Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<TEntity>? FindEntry<TProperty> (Microsoft.EntityFrameworkCore.Metadata.IProperty property, TProperty? propertyValue);abstract member FindEntry : Microsoft.EntityFrameworkCore.Metadata.IProperty * 'Property -> Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<'Entity (requires 'Entity : null)>
override this.FindEntry : Microsoft.EntityFrameworkCore.Metadata.IProperty * 'Property -> Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<'Entity (requires 'Entity : null)>Public Overridable Function FindEntry(Of TProperty) (property As IProperty, propertyValue As TProperty) As EntityEntry(Of TEntity)Type Parameters
- TProperty
The type of the property value.
Parameters
- property
- IProperty
The property to match.
- propertyValue
- TProperty
The value of the property to match.
Returns
An entry for the entity found, or null.
Remarks
This method is frequently used to get the entity with a given non-null foreign key, primary key, or alternate key value. Lookups using a key property like this are more efficient than lookups on other property value.
By default, accessing Local will call DetectChanges() to ensure that all entities searched and returned are up-to-date. Calling this method will not result in another call to DetectChanges(). Since this method is commonly used for fast lookups, consider reusing the Local object for multiple lookups and/or disabling automatic detecting of changes using AutoDetectChangesEnabled.
See EF Core change tracking for more information and examples.
Applies to
FindEntry<TProperty>(String, TProperty)
Returns an EntityEntry<TEntity> for the first entity being tracked by the context where the value of the given property matches the given value. The entry provide access to change tracking information and operations for the entity.
public virtual Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<TEntity>? FindEntry<TProperty> (string propertyName, TProperty? propertyValue);abstract member FindEntry : string * 'Property -> Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<'Entity (requires 'Entity : null)>
override this.FindEntry : string * 'Property -> Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry<'Entity (requires 'Entity : null)>Public Overridable Function FindEntry(Of TProperty) (propertyName As String, propertyValue As TProperty) As EntityEntry(Of TEntity)Type Parameters
- TProperty
The type of the property value.
Parameters
- propertyName
- String
The name of the property to match.
- propertyValue
- TProperty
The value of the property to match.
Returns
An entry for the entity found, or null.
Remarks
This method is frequently used to get the entity with a given non-null foreign key, primary key, or alternate key value. Lookups using a key property like this are more efficient than lookups on other property value.
By default, accessing Local will call DetectChanges() to ensure that all entities searched and returned are up-to-date. Calling this method will not result in another call to DetectChanges(). Since this method is commonly used for fast lookups, consider reusing the Local object for multiple lookups and/or disabling automatic detecting of changes using AutoDetectChangesEnabled.
See EF Core change tracking for more information and examples.
Applies to
Entity Framework