Question

I created a button to start the timer and the interval of timer is 1000.
I added a timer_Tick() event handler but it is not working, I dont understand the reason.

Here is my code:

void button1_Click(...)
{
    this->timer->Start();
    for( int i = 0; i < 1000; i++ )
        Thread::Sleep(1000);
    this->timer->Stop();
}

void timer_Tick(...)
{
    this->textBox->Text = "njmk"; // only to handle while debugging but it is not handled
}

Note: I added this:

this->timer->Tick += gcnew System::EventHandler(this, &Form1::timer_Tick);

EDIT :

OK, I will try to explain my problem clearly.
I have a main form and in the status strip I have a toolstripprogressbar.
When I click a button, a function will start parsing a file and the progress bar must show the progress of the function. So here is my code:

void button_click(...)
{
    this->progressBar->Visible = true;
    this->backGroundWorker->RunWorkerAsync();
}

void backGorundWorker_DoWork(...)
{
    this->timer->Start();
    ParseFunction(); // it takes about two minute
    this->timer->Stop();
}

void timer_Tick(...)
{
    this->bacGroundWorker->ReportProgress(5);
}

void backGroundWorker_ProgressChanged(...)
{
    this->progressBar->Value += e->ProgressPercentage();
}
void backGroundWorker_RunWorkerComplete(...)
{
    this->progressBar->Visible = false;
}

Answer 1

It’s not working because you’re making the thread (UI thread) sleep for 1000 * 1000 milliseconds (~16 minutes):

void button1_Click(...)
{
    this->timer->Start();
    for( int i = 0; i < 1000; i++ )
        Thread::Sleep(1000);
    this->timer->Stop();
}

That’s why it can’t update the textbox content.