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  • Articolo

Metodo Add

Adds an EventInfo object to the current EventInfos collection.

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

Sintassi

'Dichiarazione
Public Sub Add ( _
    eventName As String, _
    description As String, _
    allowEventHandlers As Boolean, _
    parameterNames As String(), _
    parameterTypes As TypeCode(), _
    parameterDescriptions As String() _
)
'Utilizzo
Dim instance As EventInfos
Dim eventName As String
Dim description As String
Dim allowEventHandlers As Boolean
Dim parameterNames As String()
Dim parameterTypes As TypeCode()
Dim parameterDescriptions As String()

instance.Add(eventName, description, allowEventHandlers, _
    parameterNames, parameterTypes, _
    parameterDescriptions)

public void Add(
    string eventName,
    string description,
    bool allowEventHandlers,
    string[] parameterNames,
    TypeCode[] parameterTypes,
    string[] parameterDescriptions
)

public:
void Add(
    String^ eventName, 
    String^ description, 
    bool allowEventHandlers, 
    array<String^>^ parameterNames, 
    array<TypeCode>^ parameterTypes, 
    array<String^>^ parameterDescriptions
)

member Add : 
        eventName:string * 
        description:string * 
        allowEventHandlers:bool * 
        parameterNames:string[] * 
        parameterTypes:TypeCode[] * 
        parameterDescriptions:string[] -> unit 

public function Add(
    eventName : String, 
    description : String, 
    allowEventHandlers : boolean, 
    parameterNames : String[], 
    parameterTypes : TypeCode[], 
    parameterDescriptions : String[]
)

Parametri

  • allowEventHandlers
    Tipo: System. . :: . .Boolean
    A Boolean that indicates if the development tool will allow event handler objects to be created for the event. If true, event handler objects can be created for the event.
  • parameterTypes
    Tipo: array<System. . :: . .TypeCode> [] () [] []
    The type of each parameter in the parameterNames array.
  • parameterDescriptions
    Tipo: array<System. . :: . .String> [] () [] []
    An array that contains descriptions for each of the parameters in parameterNames.

Osservazioni

For an example of the EventInfos collection and the Addmethod, see Sviluppo di un'attività personalizzata.

Esempi

The following example shows a custom event being added to the EventInfos collection.

public override void InitializeTask(Connections connections, VariableDispenser variables, IDTSInfoEvents events, IDTSLogging log, EventInfos eventInfos, LogEntryInfos logEntryInfos, ObjectReferenceTracker refTracker)
{
    this.eventInfos = eventInfos;
    string[] paramNames = new string[1];
    TypeCode[] paramTypes = new TypeCode[1]{TypeCode.Int32};
    string[] paramDescriptions = new string[1];

    paramNames[0] = "InitialValue";
    paramDescriptions[0] = "The value before increment.";

    this.eventInfos.Add("OnBeforeIncrement","Fires before the task increments the value.",true,paramNames,paramTypes,paramDescriptions);
    this.onBeforeIncrement = this.eventInfos["OnBeforeIncrement"];

    paramDescriptions[0] = "The value after increment.";
    this.eventInfos.Add("OnAfterIncrement","Fires after the initial value is updated.",true,paramNames, paramTypes,paramDescriptions);
    this.onAfterIncrement = this.eventInfos["OnAfterIncrement"];
}

Public Overrides Sub InitializeTask(ByVal connections As Connections, ByVal variables As VariableDispenser, ByVal events As IDTSInfoEvents, ByVal log As IDTSLogging, ByVal eventInfos As EventInfos, ByVal logEntryInfos As LogEntryInfos, ByVal refTracker As ObjectReferenceTracker) 
    Me.eventInfos = eventInfos
    Dim paramNames(0) As String
    Dim paramTypes(0) As TypeCode = {TypeCode.Int32}
    Dim paramDescriptions(0) As String
    
    paramNames(0) = "InitialValue"
    paramDescriptions(0) = "The value before increment."
    
    Me.eventInfos.Add("OnBeforeIncrement", "Fires before the task increments the value.", True, paramNames, paramTypes, paramDescriptions)
    Me.onBeforeIncrement = Me.eventInfos("OnBeforeIncrement")
    
    paramDescriptions(0) = "The value after increment."
    Me.eventInfos.Add("OnAfterIncrement", "Fires after the initial value is updated.", True, paramNames, paramTypes, paramDescriptions)
    Me.onAfterIncrement = Me.eventInfos("OnAfterIncrement")
End Sub