ObjectQuery Class

Definition

Namespace:

System.Data.Entity.Core.Objects

Assembly:

EntityFramework.dll

This class implements untyped queries at the object-layer.

[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1710:IdentifiersShouldHaveCorrectSuffix")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1010:CollectionsShouldImplementGenericInterface")]
public abstract class ObjectQuery : System.Collections.IEnumerable, System.ComponentModel.IListSource, System.Data.Entity.Infrastructure.IDbAsyncEnumerable, System.Linq.IOrderedQueryable

type ObjectQuery = class
    interface IOrderedQueryable
    interface IQueryable
    interface IEnumerable
    interface IListSource
    interface IDbAsyncEnumerable

Public MustInherit Class ObjectQuery
Implements IDbAsyncEnumerable, IEnumerable, IListSource, IOrderedQueryable

Inheritance

Object

ObjectQuery

Derived

System.Data.Entity.Core.Objects.ObjectQuery<T>

Attributes

SuppressMessageAttribute

Implements

IEnumerable IListSource IDbAsyncEnumerable IOrderedQueryable IQueryable

Properties

CommandText	Returns the command text for the query.
Context	Gets the object context associated with this object query.
EnablePlanCaching	Gets or sets a value that indicates whether the query plan should be cached.
MergeOption	Gets or sets how objects returned from a query are added to the object context.
Parameters	Gets the parameter collection for this object query.
Streaming	Whether the query is streaming or buffering

Methods

Execute(MergeOption)	Executes the untyped object query with the specified merge option.
ExecuteAsync(MergeOption)	Asynchronously executes the untyped object query with the specified merge option.
ExecuteAsync(MergeOption, CancellationToken)	Asynchronously executes the untyped object query with the specified merge option.
GetResultType()	Returns information about the result type of the query.
ToTraceString()	Returns the commands to execute against the data source.

Explicit Interface Implementations

IDbAsyncEnumerable.GetAsyncEnumerator()	Returns an IDbAsyncEnumerator which when enumerated will execute the given SQL query against the database.
IEnumerable.GetEnumerator()	Returns an enumerator that iterates through a collection.
IListSource.ContainsListCollection
IListSource.GetList()	Returns the collection as an IList used for data binding.
IQueryable.ElementType	Gets the result element type for this query instance.
IQueryable.Expression	Gets the expression describing this query. For queries built using LINQ builder patterns, returns a full LINQ expression tree; otherwise, returns a constant expression wrapping this query. Note that the default expression is not cached. This allows us to differentiate between LINQ and Entity-SQL queries.
IQueryable.Provider	Gets the IQueryProvider associated with this query instance.