internal void Start(PageAsyncTaskManager manager, object source, EventArgs args)
{
this._taskManager = manager;
this._completionCallback = new AsyncCallback(this.OnAsyncTaskCompletion);
this._started = true;
try
{
IAsyncResult result = this._beginHandler(source, args, this._completionCallback, this._state);
if (result == null)
{
throw new InvalidOperationException(System.Web.SR.GetString("Async_null_asyncresult"));
}
if (this._asyncResult == null)
{
this._asyncResult = result;
}
}
catch (Exception exception)
{
this._error = exception;
this._completed = true;
this._completedSynchronously = true;
this._taskManager.TaskCompleted(true);
}
}
internal void Start(PageAsyncTaskManager manager, object source, EventArgs args)
{
this._taskManager = manager;
this._completionCallback = new AsyncCallback(this.OnAsyncTaskCompletion);
this._started = true;
try
{
IAsyncResult result = this._beginHandler(source, args, this._completionCallback, this._state);
if (result == null)
{
throw new InvalidOperationException(System.Web.SR.GetString("Async_null_asyncresult"));
}
if (this._asyncResult == null)
{
this._asyncResult = result;
}
}
catch (Exception exception)
{
this._error = exception;
this._completed = true;
this._completedSynchronously = true;
this._taskManager.TaskCompleted(true);
}
}
public void RegisterAsyncTask(PageAsyncTask task)
{
if (task == null)
{
throw new ArgumentNullException("task");
}
if (this._asyncTaskManager == null)
{
this._asyncTaskManager = new PageAsyncTaskManager(this);
}
this._asyncTaskManager.AddTask(task);
}