DataCommand.Execute Method (String, DataCommandType)

Executes a specified command and returns read-only results.

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

Syntax

'宣言
Public Function Execute ( _
    command As String, _
    commandType As DataCommandType _
) As IVsDataReader
'使用
Dim instance As DataCommand
Dim command As String
Dim commandType As DataCommandType
Dim returnValue As IVsDataReader

returnValue = instance.Execute(command, _
    commandType)

public IVsDataReader Execute(
    string command,
    DataCommandType commandType
)

public:
virtual IVsDataReader^ Execute(
    String^ command, 
    DataCommandType commandType
) sealed

public final function Execute(
    command : String, 
    commandType : DataCommandType
) : IVsDataReader

Parameters

command
Type: System.String

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

commandType
Type: Microsoft.VisualStudio.Data.Services.SupportEntities.DataCommandType

The type of the command that specifies how to interpret the contents of the command parameter. The command type could either be a value from the DataCommandType enumeration or a custom command type defined by a provider, which can be passed in by forcing a cast from an integer to the DataCommandType enumeration.

Return Value

Type: Microsoft.VisualStudio.Data.Services.SupportEntities.IVsDataReader

An IVsDataReader object, which provides a forward-only, read-only stream from the data source.

Implements

IVsDataCommand.Execute(String, DataCommandType)

Exceptions

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

Remarks

注意

Other exceptions that occur indicate that the execution 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.