EntityCommand Class

EntityCommand Class

.NET Framework (current version)
 

Represents a command for the conceptual layer.

Namespace:   System.Data.EntityClient
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

System.Object
  System.MarshalByRefObject
    System.ComponentModel.Component
      System.Data.Common.DbCommand
        System.Data.EntityClient.EntityCommand

public sealed class EntityCommand : DbCommand

NameDescription
System_CAPS_pubmethodEntityCommand()

Initializes a new instance of the EntityCommand class using the specified values.

System_CAPS_pubmethodEntityCommand(String)

Initializes a new instance of the EntityCommand class with the specified statement.

System_CAPS_pubmethodEntityCommand(String, EntityConnection)

Initializes a new instance of the EntityCommand class with the specified statement and connection.

System_CAPS_pubmethodEntityCommand(String, EntityConnection, EntityTransaction)

Initializes a new instance of the EntityCommand class with the specified statement, connection and transaction.

NameDescription
System_CAPS_pubpropertyCommandText

Gets or sets an Entity SQL statement that specifies a command or stored procedure to execute.(Overrides DbCommand.CommandText.)

System_CAPS_pubpropertyCommandTimeout

Gets or sets the amount of time to wait before timing out.(Overrides DbCommand.CommandTimeout.)

System_CAPS_pubpropertyCommandTree

Gets or sets the command tree to execute; only one of the command tree or the command text can be set, not both.

System_CAPS_pubpropertyCommandType

Gets or sets a value that indicates how the CommandText property is to be interpreted.(Overrides DbCommand.CommandType.)

System_CAPS_pubpropertyConnection

Gets or sets the EntityConnection used by the EntityCommand.

System_CAPS_pubpropertyContainer

Gets the IContainer that contains the Component.(Inherited from Component.)

System_CAPS_pubpropertyDesignTimeVisible

Gets or sets a value that indicates whether the command object should be visible in a Windows Form Designer control.(Overrides DbCommand.DesignTimeVisible.)

System_CAPS_pubpropertyEnablePlanCaching

Gets or sets a value that indicates whether the query plan caching is enabled.

System_CAPS_pubpropertyParameters

Gets the parameters of the Entity SQL statement or stored procedure.

System_CAPS_pubpropertySite

Gets or sets the ISite of the Component.(Inherited from Component.)

System_CAPS_pubpropertyTransaction

Gets or sets the transaction within which the SqlCommand executes.

System_CAPS_pubpropertyUpdatedRowSource

Gets or sets how command results are applied to rows being updated.(Overrides DbCommand.UpdatedRowSource.)

NameDescription
System_CAPS_pubmethodCancel()

Cancels the execution of an EntityCommand.(Overrides DbCommand.Cancel().)

System_CAPS_pubmethodCreateObjRef(Type)

Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object.(Inherited from MarshalByRefObject.)

System_CAPS_pubmethodCreateParameter()

Creates a new instance of an EntityParameter object.

System_CAPS_pubmethodDispose()

Releases all resources used by the Component.(Inherited from Component.)

System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_pubmethodExecuteNonQuery()

Executes the current command.(Overrides DbCommand.ExecuteNonQuery().)

System_CAPS_pubmethodExecuteNonQueryAsync()

An asynchronous version of ExecuteNonQuery, which executes a SQL statement against a connection object.

Invokes ExecuteNonQueryAsync with CancellationToken.None.(Inherited from DbCommand.)

System_CAPS_pubmethodExecuteNonQueryAsync(CancellationToken)

This is the asynchronous version of ExecuteNonQuery. Providers should override with an appropriate implementation. The cancellation token may optionally be ignored.

The default implementation invokes the synchronous ExecuteNonQuery method and returns a completed task, blocking the calling thread. The default implementation will return a cancelled task if passed an already cancelled cancellation token. Exceptions thrown by ExecuteNonQuery will be communicated via the returned Task Exception property.

Do not invoke other methods and properties of the DbCommand object until the returned Task is complete.(Inherited from DbCommand.)

System_CAPS_pubmethodExecuteReader()

Executes the command and returns a data reader.

System_CAPS_pubmethodExecuteReader(CommandBehavior)

Compiles the CommandText into a command tree and passes it to the underlying store provider for execution, then builds an EntityDataReader out of the produced result set using the specified CommandBehavior.

System_CAPS_pubmethodExecuteReaderAsync()

An asynchronous version of ExecuteReader, which executes the CommandText against the Connection and returns a DbDataReader.

Invokes ExecuteDbDataReaderAsync with CancellationToken.None.(Inherited from DbCommand.)

System_CAPS_pubmethodExecuteReaderAsync(CancellationToken)

An asynchronous version of ExecuteReader, which executes the CommandText against the Connection and returns a DbDataReader. This method propagates a notification that operations should be canceled.

Invokes ExecuteDbDataReaderAsync.(Inherited from DbCommand.)

System_CAPS_pubmethodExecuteReaderAsync(CommandBehavior)

An asynchronous version of ExecuteReader, which executes the CommandText against the Connection and returns a DbDataReader.

Invokes ExecuteDbDataReaderAsync.(Inherited from DbCommand.)

System_CAPS_pubmethodExecuteReaderAsync(CommandBehavior, CancellationToken)

Invokes ExecuteDbDataReaderAsync.(Inherited from DbCommand.)

System_CAPS_pubmethodExecuteScalar()

Executes the command, and returns the first column of the first row in the result set. Additional columns or rows are ignored.(Overrides DbCommand.ExecuteScalar().)

System_CAPS_pubmethodExecuteScalarAsync()

An asynchronous version of ExecuteScalar, which executes the query and returns the first column of the first row in the result set returned by the query. All other columns and rows are ignored.

Invokes ExecuteScalarAsync with CancellationToken.None.(Inherited from DbCommand.)

System_CAPS_pubmethodExecuteScalarAsync(CancellationToken)

This is the asynchronous version of ExecuteScalar. Providers should override with an appropriate implementation. The cancellation token may optionally be ignored.

The default implementation invokes the synchronous ExecuteScalar method and returns a completed task, blocking the calling thread. The default implementation will return a cancelled task if passed an already cancelled cancellation token. Exceptions thrown by ExecuteScalar will be communicated via the returned Task Exception property.

Do not invoke other methods and properties of the DbCommand object until the returned Task is complete.(Inherited from DbCommand.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetLifetimeService()

Retrieves the current lifetime service object that controls the lifetime policy for this instance.(Inherited from MarshalByRefObject.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethodInitializeLifetimeService()

Obtains a lifetime service object to control the lifetime policy for this instance.(Inherited from MarshalByRefObject.)

System_CAPS_pubmethodPrepare()

Compiles the entity-level command and creates a prepared version of the command.(Overrides DbCommand.Prepare().)

System_CAPS_pubmethodToString()

Returns a String containing the name of the Component, if any. This method should not be overridden.(Inherited from Component.)

System_CAPS_pubmethodToTraceString()

Compiles the entity-level command and returns the store command text.

NameDescription
System_CAPS_pubeventDisposed

Occurs when the component is disposed by a call to the Dispose method. (Inherited from Component.)

NameDescription
System_CAPS_pubinterfaceSystem_CAPS_privmethodIDbCommand.CreateParameter()

Creates a new instance of an IDbDataParameter object.(Inherited from DbCommand.)

System_CAPS_pubinterfaceSystem_CAPS_privmethodIDbCommand.ExecuteReader()

Executes the CommandText against the Connection and builds an IDataReader.(Inherited from DbCommand.)

System_CAPS_pubinterfaceSystem_CAPS_privmethodIDbCommand.ExecuteReader(CommandBehavior)

Executes the CommandText against the Connection, and builds an IDataReader using one of the CommandBehavior values.(Inherited from DbCommand.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIDbCommand.Connection

Gets or sets the IDbConnection used by this instance of the IDbCommand.(Inherited from DbCommand.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIDbCommand.Parameters

Gets the IDataParameterCollection.(Inherited from DbCommand.)

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIDbCommand.Transaction

Gets or sets the DbTransaction within which this DbCommand object executes.(Inherited from DbCommand.)

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.NET Framework
Available since 3.5

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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