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
声明
Public Function Prepare ( _
command As String _
) As String
public string Prepare(
string command
)
public:
virtual String^ Prepare(
String^ command
) sealed
abstract Prepare :
command:string -> string
override Prepare :
command:string -> string
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, array<DataParameter[], Int32) or ExecuteWithoutResults(String, DataCommandType, array<DataParameter[], Int32) method by using the command type Prepared.
Implements
IVsDataCommand.Prepare(String)
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | The command parameter is nulla null reference (Nothing in Visual Basic). |
Remarks
Other exceptions that occur indicate that the preparation failed for a provider-specified reason.
.NET Framework Security
- 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.