private async void button2_Click(object sender, EventArgs e)
{
await TextReaderSample.ReadLinesAsync("oop.md", new Progress <string>(
line => textBox1.Text += line + Environment.NewLine
));
}
private async void button1_Click(object sender, EventArgs e)
{
var text = await TextReaderSample.ReadTextAsync("oop.md");
textBox1.Text = text;
}
