DtsConvert.VarTypeFromTypeCode Method
Converts a system TypeCode to a Integration ServicesVariant data type. This method is not CLS-compliant.
Espacio de nombres: Microsoft.SqlServer.Dts.Runtime
Ensamblado: Microsoft.SqlServer.ManagedDTS (in microsoft.sqlserver.manageddts.dll)
Sintaxis
'Declaración
Public Shared Function VarTypeFromTypeCode ( _
typeCode As TypeCode _
) As UShort
public static ushort VarTypeFromTypeCode (
TypeCode typeCode
)
public:
static unsigned short VarTypeFromTypeCode (
TypeCode typeCode
)
public static UInt16 VarTypeFromTypeCode (
TypeCode typeCode
)
public static function VarTypeFromTypeCode (
typeCode : TypeCode
) : ushort
Parámetros
- typeCode
The system TypeCode to convert to the SSIS type.
Valor devuelto
The SSIS type for the system TypeCode.
Notas
For a list of the SSIS types, see Tipos de datos de Integration Services.
The following table shows the TypeCode and what SSIS Variant data type they are converted to.
System TypeCode |
Variant Data Type |
System.TypeCode.Empty |
VT_EMPTY |
System.TypeCode.DBNull |
VT_NULL |
System.TypeCode.Int16 |
VT_I2 |
System.TypeCode.Int32 |
VT_I4 |
System.TypeCode.Single |
VT_R4 |
System.TypeCode.Double |
VT_R8 |
System.TypeCode.Decimal |
VT_CY |
System.TypeCode.DateTime |
VT_DATE |
System.TypeCode.String |
VT_BSTR |
System.TypeCode.Object |
VT_DISPATCH |
System.TypeCode.Object |
VT_ERROR |
System.TypeCode.Boolean |
VT_BOOL |
System.TypeCode.Object |
VT_VARIANT |
System.TypeCode.Object |
VT_UNKNOWN |
System.TypeCode.Decimal |
VT_DECIMAL |
System.TypeCode.SByte |
VT_I1 |
System.TypeCode.Byte |
VT_UI1 |
System.TypeCode.UInt16 |
VT_UI2 |
System.TypeCode.UInt32 |
VT_UI4 |
System.TypeCode.Int64 |
VT_I8 |
System.TypeCode.UInt64 |
VT_UI8 |
System.TypeCode.Int16 |
VT_INT |
System.TypeCode.UInt16 |
VT_UINT |
System.TypeCode.Empty |
VT_VOID |
Ejemplo
The following example shows a pipeline component that overrides the RegisterEvents method and creates a custom event using the EventInfos collection, using the VarTypeFromTypeCode to create a reference type.
Public override void RegisterEvents()
{
string []parameters = new string[1]{"Parameter1"};
ushort []types = new ushort[1]{DtsConvert.VarTypeFromTypeCode(TypeCode.String)};
string []descriptions = new string [1]{"The first parameter."};
EventInfos.Add("OnPreExecute", "Fires when the PreExecute method runs.", false, ref parameters, ref types, ref descriptions);
}
Public Overrides Sub RegisterEvents()
String ()parameters = New String(1)
{
"Parameter1"
}
System.UInt16 ()types = New System.UInt16(1)
{
DtsConvert.VarTypeFromTypeCode(TypeCode.String)
}
String ()descriptions = New String (1)
{
"The first parameter."
}
EventInfos.Add("OnPreExecute", "Fires when the PreExecute method runs.", False, parameters, types, descriptions)
End Sub
Seguridad para subprocesos
Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
Plataformas
Plataformas de desarrollo
Para obtener una lista de las plataformas compatibles, vea Requisitos de hardware y software para instalar SQL Server 2005.
Plataformas de destino
Para obtener una lista de las plataformas compatibles, vea Requisitos de hardware y software para instalar SQL Server 2005.
Vea también
Referencia
DtsConvert Class
DtsConvert Members
Microsoft.SqlServer.Dts.Runtime Namespace