Condividi tramite


Metodo ConnectionManagerBase.Validate

Validates the connection and returns an enumeration that indicates success or failure.

Spazio dei nomi  Microsoft.SqlServer.Dts.Runtime
Assembly:  Microsoft.SqlServer.ManagedDTS (in Microsoft.SqlServer.ManagedDTS.dll)

Sintassi

'Dichiarazione
Public Overridable Function Validate ( _
    infoEvents As IDTSInfoEvents _
) As DTSExecResult
'Utilizzo
Dim instance As ConnectionManagerBase 
Dim infoEvents As IDTSInfoEvents 
Dim returnValue As DTSExecResult 

returnValue = instance.Validate(infoEvents)
public virtual DTSExecResult Validate(
    IDTSInfoEvents infoEvents
)
public:
virtual DTSExecResult Validate(
    IDTSInfoEvents^ infoEvents
)
abstract Validate : 
        infoEvents:IDTSInfoEvents -> DTSExecResult  
override Validate : 
        infoEvents:IDTSInfoEvents -> DTSExecResult
public function Validate(
    infoEvents : IDTSInfoEvents
) : DTSExecResult

Parametri

Valore restituito

Tipo: Microsoft.SqlServer.Dts.Runtime.DTSExecResult
A DTSExecResult enumeration.

Osservazioni

The Validate method reviews properties and settings for inaccuracies or incorrect settings. The method does not touch data, or connect to data sources to validate connections. However, it ensures that required fields are populated and contain appropriate values. The fields that are validated differ depending on what object is being validated.

The primary use of Validate is when writing a custom task. The Validate method is called by the SSIS Designer when a task is dropped onto the design surface and again, potentially multiple times, when properties are being set. However, in code, the Validate method on individual objects is not commonly used, as it is recommended that you call the Validate method on the Package when you need to validate objects. However, the method is available on individual objects should you find a unique circumstance where it is needed.

The Validate method is overridden in custom tasks, either for validation of the object when used in the SSIS Designer, or when called by code. For more information on writing the Validate method for a custom task, see Scrittura del codice di un'attività personalizzata.

Esempi

The following code example shows how to validate objects using the Validate method of the Package object.

DTSExecResult myresult = pkg.Validate(myPkgConnections, myPkgVariables, myIDTSEvents, myIDTSLogging);
Dim myresult As DTSExecResult =  pkg.Validate(myPkgConnections,myPkgVariables,myIDTSEvents, myIDTSLogging)

Vedere anche

Riferimento

ConnectionManagerBase Classe

Spazio dei nomi Microsoft.SqlServer.Dts.Runtime