I tried to use the below code to make a 2 second delay before navigating to the next window. But the thread is invoking first and the textblock gets displayed for a microsecond and landed into the next page. I heard a dispatcher would do that.
Here is my snippet:
tbkLabel.Text = "two mins delay";
Thread.Sleep(2000);
Page2 _page2 = new Page2();
_page2.Show();
The call to Thread.Sleep is blocking the UI thread. You need to wait asynchronously.
Method 1: use a DispatcherTimer
tbkLabel.Text = "two seconds delay";
var timer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(2) };
timer.Start();
timer.Tick += (sender, args) =>
{
timer.Stop();
var page = new Page2();
page.Show();
};
Method 2: use Task.Delay
tbkLabel.Text = "two seconds delay";
Task.Delay(2000).ContinueWith(_ =>
{
var page = new Page2();
page.Show();
}
);
Method 3: The .NET 4.5 way, use async/await
// we need to add the async keyword to the method signature
public async void TheEnclosingMethod()
{
tbkLabel.Text = "two seconds delay";
await Task.Delay(2000);
var page = new Page2();
page.Show();
}