Threads.join() doesn't work like expected

Jeroen Kolk

Hi, I am totally new to C# and doing a retraining.

Today I walked into a little problem I can't solve yet..

I did a tutorial from Pragmtech on youtube:

https://www.youtube.com/watch?v=SgHYVPKJRX8&list=PLAC325451207E3105&index=102

The problem is that when running the code it doesn't show the text "processing file. Please wait".

I hope someone can help me out. Thx!

private int CountCharacters()
{
int count = 0;
using (StreamReader reader = new StreamReader(@"C:\Users\TTTG11133.NOA\Documents\JeroenK\Test\AsyncAwaitPragmTech101\data.txt"))
{
string content = reader.ReadToEnd();
count = content.Length;
Thread.Sleep(5000);
}
return count;
}
//Async await with blocking (using task)
private async void btnProcess1_Click(object sender, RoutedEventArgs e)
{
Task<int> task = new Task<int>(CountCharacters);
task.Start();
lblCount.Text = "processing file. Please wait...";
int count = await task;
lblCount.Text = count.ToString() + "characters in file";
myTextBox.Text = "jeroen";
}
private void btnProces2_Click(object sender, RoutedEventArgs e)
{
int count = 0;
Thread thread = new Thread(() => { count = CountCharacters(); });
thread.Start();
myTextBlock2.Text = "processing file. Please wait...";
thread.Join(); // The next string should appear after 5 sec.
myTextBlock2.Text = count.ToString();
}

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