C# – Refresh WPF RichTextBox during a loop

June 20, 2022

I’m new learner in C# and i have a simple problem.

I do classic loop of 15 iterations with a Threat.Sleep of 3 secondes in each ones and inside this loop at each iteration i’m addind text to my RichTextBox.
BUT the text only appear at the end of the 15 iterations of 3 secondes ! 🙁

I want the text to be added at each iteration in the loop 🙂 Is there a way to do that ?

Thank you for helping 🙂

AMIGA RULEZ

>Solution :

I tested this code and it worked.
When i press the button, the RTB adds the word "hello" each 3 seconds.

    private async void button1_Click(object sender, EventArgs e)
    {
        for(int i=0; i<16; i++)
        {
            richTextBox1.Text += "hello";
            await Task.Delay(3000);
        }
    }