This documentation is archived and is not being maintained.

EntityCommand.Prepare Method

Compiles the entity-level command and creates a prepared version of the command by calling the Prepare method of the underlying data provider's Command object.

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

public override void Prepare()

Implements

IDbCommand.Prepare()

ExceptionCondition
InvalidOperationException

The associated EntityConnection is closed.

Client-side command compilation consists of the following steps:

  1. Building a command tree from the specified Entity SQL command text if it has not already been built.

  2. Getting the provider factory from the EntityConnection object and using it to create a DbCommandDefinition object. However, if EntityCommand is already associated with a DbCommandDefinition, this step is skipped.

  3. Setting the command tree, parameters, and other settings on the CommonDbCommandDefinition object.

  4. Adding the compiled query plan to the cache, if query plan caching is enabled.

.NET Framework

Supported in: 4, 3.5 SP1

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Show: