DataCommand.Prepare Method (String)

Prepares the specified command on the data source to be executed; the command can then be executed multiple times, with varying parameters.

Namespace: Microsoft.VisualStudio.Data.Framework
Assembly: Microsoft.VisualStudio.Data.Framework (in Microsoft.VisualStudio.Data.Framework.dll)

Syntax

'宣言
Public Function Prepare ( _
    command As String _
) As String
'使用
Dim instance As DataCommand
Dim command As String
Dim returnValue As String

returnValue = instance.Prepare(command)

public string Prepare(
    string command
)

public:
virtual String^ Prepare(
    String^ command
) sealed

public final function Prepare(
    command : String
) : String

Parameters

command
Type: System.String

A command to execute that is specific to a data source.

Return Value

Type: System.String

An identifier of the prepared command that can later be passed to the Execute(String, DataCommandType, [], Int32) or ExecuteWithoutResults(String, DataCommandType, [], Int32) method by using the command type Prepared.

Implements

IVsDataCommand.Prepare(String)

Exceptions

Exception	Condition
ArgumentNullException	The command parameter is a null reference (Nothing in Visual Basic).

Remarks

Other exceptions that occur indicate that the preparation failed for a provider-specified reason.

Permissions

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.