As time passes and progressbar grows change the label text

Question

Before you start it’s just a game not a virus.

My goal is when the progressbar reaches 1% put the text as downloading viruses and when it reaches 50% put the text as Installing virus but instead it just changes to Installing virus.

This is the code so far:

Timer t = new Timer();
private void LetTheGameStart_Load(object sender, EventArgs e)
{
    timer1.Enabled = true;
    timer1.Start();
    timer1.Interval = 1000;
    progressBar1.Maximum = 10;
    timer1.Tick += new EventHandler(timer1_Tick);
}

void timer1_Tick(object sender, EventArgs e)
{
    {
        if (progressBar1.Value != 100)
        {
            progressBar1.Value++;
            label2.Text = "Downloading Virus";
        }
    }
    if (progressBar1.Value != 50)
    {
        label2.Text = "installing Virus";
    }
}

Answer 1

When using the Progressbar it is very useful to use the Backgroundworker to increase the bar (property Value from Progressbar) and leave the application free to do other things.

Implementing the Backgroundworker

First let’s implement the event DoWork of BackgroundWorker to report on progress:

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{            
    for (int i = 1; i <= 100; i++) //loop para o progressbar
    {
        Thread.Sleep(100);
        backgroundWorker1.ReportProgress(i);
    }
}

Then you must implement the event ProgressChanged of BackgroundWorker to get the values being passed to Progressbar and manipulated:

private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
{
    progressBar1.Value = e.ProgressPercentage;
    Text = e.ProgressPercentage.ToString();

    if (progressBar1.Value >= 1 && progressBar1.Value <= 50)
    {
        label1.Text = "Installing Virus";                
    }
    else if (progressBar1.Value > 50 && progressBar1.Value <= 100)
    {
        label1.Text = "Downloading Virus";
    }
}

And finally just call the method RunWorkerAsync() Backgroundworker to activate it:

private void button1_Click(object sender, EventArgs e)
{
    backgroundWorker1.RunWorkerAsync();
}

PS: The property WorkerReportsProgress Backgroundworker has to be set to true to update the progress.

Exit:

When the value is below 50 display the message Installing Virus:

When the value is above 50 display the message Downloading Virus:

You can also use the event RunWorkerCompleted Backgroundworker to do something when progress is completed.

Source: http://www.dotnetperls.com/progressbar