//static PleaseWaitWindow _pleaseWaitDlg;
/// <summary>
/// Runs the specified long operation (in delegate) in separate thread and display please wait modal window.
/// </summary>
/// <param name="method">The method to run in background.</param>
/// <param name="canBeCanceled">if set to <c>true</c> operation can be canceled (PleaseWait window display Cancel button).</param>
public static bool Run(MyRunMethod method, bool canBeCanceled = false, IProgressWindow progressWindow = null, int?progressMax = null, bool useDefaultExceptionHandling = true)
{
bool res = true;
if (useDefaultExceptionHandling)
{
UIHelper.RunWithExceptionHandling(delegate
{
res = pleaseWaitImplementation(canBeCanceled, progressMax, method, progressWindow);
});
}
else
{
res = pleaseWaitImplementation(canBeCanceled, progressMax, method, progressWindow);
}
return(res);
}
/// <summary>
/// Initializes a new instance of the <see cref="PleaseWaitContext"/> class.
/// </summary>
/// <param name="method">The method to run in background.</param>
/// <param name="dlg">PleaseWaitWindow used in this context</param>
public PleaseWaitContext(MyRunMethod method, IProgressWindow dlg)
: base(dlg)
{
this.method = method;
}
//static DispatcherTimer timer = new DispatcherTimer();
private static bool pleaseWaitImplementation(bool canBeCanceled, int?progressMax, MyRunMethod method, IProgressWindow _pleaseWaitDlg)
{
bool res = true;
Debug.WriteLine("PleaseWait.Run start");
//Cancel = false;
// Start my lengthy Process
// Display the Please Wait Dialog here
if (_pleaseWaitDlg == null)
{
//_pleaseWaitDlg = new PleaseWaitWindow(canBeCanceled, progressMax);
_pleaseWaitDlg = MainWindow.Instance;
}
Thread lengthyProcessThread = new Thread(threadRunner);
lengthyProcessThread.SetApartmentState(ApartmentState.STA);
lengthyProcessThread.IsBackground = true; // so not to have stray running threads if the main form is closed
PleaseWaitContext pleaseWaitContext = new PleaseWaitContext(method, _pleaseWaitDlg);
lengthyProcessThread.Start(pleaseWaitContext);
IProgressWindow temporaryWindow = _pleaseWaitDlg;
MethodParameters par = new MethodParameters(temporaryWindow);
//timer.Interval = TimeSpan.FromSeconds(.5);
//timer.Tick += delegate
//{
// timer.Stop();
// if (/*!pendingClosing &&*/ !par.Finished)
// {
// temporaryWindow.ShowProgress();
// }
//};
temporaryWindow.Parameters = par;
//timer.Start();
temporaryWindow.ShowProgress(canBeCanceled, progressMax);
Debug.WriteLine("Creating thread: " + lengthyProcessThread.ManagedThreadId);
//if please wait thread throws exception then rethrow it
if (pleaseWaitContext.ReturnException != null)
{
res = false;
ExceptionHandler.Default.Process(pleaseWaitContext.ReturnException);
//throw new RethrowedException(pleaseWaitContext.ReturnException);)
throw pleaseWaitContext.ReturnException;
}
return(res);
}
private static bool pleaseWaitImplementation(bool canBeCanceled, int?progressMax, MyRunMethod method)
{
bool res = true;
Debug.WriteLine("PleaseWait.Run start");
//Cancel = false;
// Start my lengthy Process
// Display the Please Wait Dialog here
PleaseWaitWindow _pleaseWaitDlg = new PleaseWaitWindow(canBeCanceled, progressMax);
Thread lengthyProcessThread = new Thread(threadRunner);
lengthyProcessThread.IsBackground = true; // so not to have stray running threads if the main form is closed
PleaseWaitContext pleaseWaitContext = new PleaseWaitContext(method, _pleaseWaitDlg);
lengthyProcessThread.Start(pleaseWaitContext);
Debug.WriteLine("Creating thread: " + lengthyProcessThread.ManagedThreadId);
_pleaseWaitDlg.ShowDialog();
//if please wait thread throws exception then rethrow it
if (pleaseWaitContext.ReturnException != null)
{
res = false;
ExceptionHandler.Default.Process(pleaseWaitContext.ReturnException);
//throw new RethrowedException(pleaseWaitContext.ReturnException);)
throw pleaseWaitContext.ReturnException;
}
return(res);
}
