EventInfos.Add 方法
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
將物件 EventInfo 加入目前 EventInfos 的集合。
public:
void Add(System::String ^ eventName, System::String ^ description, bool allowEventHandlers, cli::array <System::String ^> ^ parameterNames, cli::array <TypeCode> ^ parameterTypes, cli::array <System::String ^> ^ parameterDescriptions);
public void Add(string eventName, string description, bool allowEventHandlers, string[] parameterNames, TypeCode[] parameterTypes, string[] parameterDescriptions);
member this.Add : string * string * bool * string[] * TypeCode[] * string[] -> unit
Public Sub Add (eventName As String, description As String, allowEventHandlers As Boolean, parameterNames As String(), parameterTypes As TypeCode(), parameterDescriptions As String())
參數
- eventName
- String
自訂事件的名稱。
- description
- String
一個包含事件描述的字串。
- allowEventHandlers
- Boolean
一個布林值,指示開發工具是否允許為該事件建立事件處理物件。 若為真,則可為該事件建立事件處理物件。
- parameterNames
- String[]
一組參數傳給事件。
- parameterTypes
- TypeCode[]
陣列中 parameterNames 每個參數的類型。
- parameterDescriptions
- String[]
一個陣列,包含每個參數的描述。parameterNames
範例
以下範例展示了一個自訂事件被加入 EventInfos 收藏。
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
備註
關於集合與Add方法的範例EventInfos,請參見「開發自訂任務」。