CODEWITHSUNDEEP
c#wpfxaml
Tom Pitts
Tom Pitts

Reputation: 600

Generating a random number and putting it in a TextBlock

I have created a class which generates a random number: 

public class DataGenerator
{
    public void RandomHRValue()
    {
        Random random = new Random();
        int RandomNumber = random.Next(0, 100);
    }
}

I have then created a XAML file and put the following within the Grid:

<TextBlock Name="a" Text="" Width="196" HorizontalAlignment="Center" Margin="183,158,138,56"/>

I haven't done anything to the xaml.cs file. How would I go about putting a random number into that TextBlock every 20 seconds?

Upvotes: 4

Views: 5247

Answers (2)

Salah Akbari
Salah Akbari

Reputation: 39956

You can use DispatcherTimer like this:

public MainWindow()
{
     InitializeComponent();
     DispatcherTimer timer = new DispatcherTimer();
     timer.Interval = new TimeSpan(0, 0, 20);
     timer.Start();
     timer.Tick += timer_Tick;
}

void timer_Tick(object sender, EventArgs e)
{
     DataGenerator dg = new DataGenerator();
     a.Text = dg.RandomHRValue().ToString();
}

Also change method type to int:

 public int RandomHRValue()
 {
      Random random = new Random();
      int RandomNumber = random.Next(0, 100);
      return RandomNumber;
 }

Upvotes: 4

Badja
Badja

Reputation: 875

I can't comment due to my low reputation, but in response to the other answer, would it not be better to use the following?

        InitializeComponent();
        DispatcherTimer timer = new DispatcherTimer {Interval = new TimeSpan(0, 0, 5)};
        timer.Start();
        timer.Tick += timer_Tick;

If this is wrong, can you say why, so I, myself, can get some feedback (btw OP and I are working together on this)

Upvotes: 0

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