TaskList.InvokeMethod(String, Object) 方法

定義

命名空間:

Microsoft.Web.Management.Client

組件:

Microsoft.Web.Management.dll

呼叫指定的方法。

public:
 virtual System::Object ^ InvokeMethod(System::String ^ methodName, System::Object ^ userData);

public virtual object InvokeMethod(string methodName, object userData);

abstract member InvokeMethod : string * obj -> obj
override this.InvokeMethod : string * obj -> obj

Public Overridable Function InvokeMethod (methodName As String, userData As Object) As Object

參數

methodName

String

要呼叫之方法的名稱。

userData

Object

任意使用者提供的物件。

傳回

Object

使用者定義的物件。

範例

public override object InvokeMethod(string methodName, object userData)
{
    Type taskListType = GetType();

    MethodInfo methodInfo = taskListType.GetMethod(methodName);
    if (methodInfo != null)
    {
        if (userData == null)
        {
            return methodInfo.Invoke(this, null);
        } else
        {
            return methodInfo.Invoke(this, new object[] { userData });
        }
    } else
    {
        throw new InvalidOperationException("methodName : " + methodName +
            "\n taskListType.Name " + taskListType.Name);
    }
}

/// GetTaskItems() is called every time the context menu is invoked.
public override System.Collections.ICollection GetTaskItems() {

    ArrayList items = new ArrayList();

    Image imgAsk = rLoadImg.loadImgs(SystemIcons.Asterisk, 16);
    Image imgErr = rLoadImg.loadImgs(SystemIcons.Error, 16);

    items.Add(new MethodTaskItem(
                "DisplayTime",       // Method Name
                "Show Time",        // Menu item Text
                "DemoCategory")    // Category
                );

    Person prs = new Person(66, "Joe", "Smith");
    MethodTaskItem mti_i = new MethodTaskItem(
                                    "InvTst",       // Method Name
                                    "Invoke Test",   // Menu item Text
                                    sDemoCat,       // Category
                                    "Tool Tip:SC",  // ToolTip non-functional
                                    imgAsk,          // Menu Icon
                                    prs);      // user data
    mti_i.CausesNavigation = false;
    traceMTI(mti_i);

    items.Add(mti_i);


    items.Add(new MethodTaskItem(
          "ShowCnt",       // Method Name
          "Show Count",   // Menu item Text
          sDemoCat,       // Category
          "Tool Tip:SC",  // ToolTip non-functional
          mti_i.Image)    // Menu Icon
          );

public void myInvoke()
{
    TaskList tl = getMyTaskList();
    Person p = new Person(49, "Joe", "Smith");
    tl.InvokeMethod("InvTst", p);
}

// DemoHierarchyInfo.InvTst()
//
public int InvTst(Person p)
{
    Trace.WriteLine(" InvTst : person age: " + p._age.ToString()
    + "\n First name \"" + p._fName
    + "\"\n Last name " + p._LstName + "\"");

    return SH._pCnt;
}

// method DemoHierarchyInfo.HierarchyDemoInfoTaskList.InvTst()
public void InvTst(object obj)
{
    // Call parents InvTst (DemoHierarchyInfo.InvTst )
    //
    _owner.InvTst((Person)obj);
    UpdateCurPers();
    _owner.flush();
}

備註

只有在您在建 TaskList 置 時使用六個參數 MethodTaskItem 建構函式建立方法工作專案時，非 Null userData 參數才有效。