DtsConvert.VarTypeFromTypeCode Method
Converts a system TypeCode to a Integration ServicesVariant data type. This method is not CLS-compliant.
Namespace: Microsoft.SqlServer.Dts.Runtime
Assembly : Microsoft.SqlServer.ManagedDTS (in microsoft.sqlserver.manageddts.dll)
Syntax
'Declaration
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
Parameter
- typeCode
The system TypeCode to convert to the SSIS type.
Rückgabewert
The SSIS type for the system TypeCode.
Hinweise
For a list of the SSIS types, see SQL Server Integration Services-Datentypen.
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 |
Beispiel
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
Threadsicherheit
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.
Plattformen
Entwicklungsplattformen
Eine Liste der unterstützten Plattformen finden Sie unterHardware- und Softwareanforderungen für die Installation von SQL Server 2005.
Zielplattforme
Eine Liste der unterstützten Plattformen finden Sie unterHardware- und Softwareanforderungen für die Installation von SQL Server 2005.
Siehe auch
Verweis
DtsConvert Class
DtsConvert Members
Microsoft.SqlServer.Dts.Runtime Namespace