How to await Task.Delay(100) function below .net framework?

Anil Sah

9y3.5kLearn iOS Programming

Btn0.Background = Brushes.Red;

Task.Delay(100);

Btn0.Background = Brushes.Teal;

8 Replies

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Anil Sah9y ago
Thanks for the reply but what if I have multiple button and tick won't work in wpf.

public static void main
{
///timer tick event
}
private void UserControl_KeyDown(object sender, KeyEventArgs e)
{
timer.Start();
if (e.Key == Key.D3 && Keyboard.Modifiers == ModifierKeys.Shift)
{
BtnHash.Background = Brushes.Violet;
AddNumber("#");
Btn0.Background = Brushes.Teal;
Btn1.Background = Brushes.Teal;
Btn2.Background = Brushes.Teal;
BtnHash.Background = Brushes.Teal;

}
Hassan Uddin Mughal9y ago
Try this code.
private void button1_Click(object sender, EventArgs e)
{
button1.BackColor = Color.Lime;
timer.Tick = 2000;
timer.Start;
}
private void timer_Tick(object sender, EventArgs e)
{
timer.Stop;
button1.BackColor = SystemColors.Control;
}
Anil Sah9y ago
I want to implement in multiple button same effect like Windows 10 calc. Keyboard press event changes but I'm not able to achieve using timer mouse hover press click all setter working fine on button changing but in case of keyboard flicker changes event not working it should work like win1o calc on keyboard press effect
Anil Sah9y ago
I can't use àsync thread because I need to run this application in Windows xp there thread don't work as async
Hassan Uddin Mughal9y ago
You can make use of asychronous
private async void Button1_Click(object sender, EventArgs e)
{
button1.BackColor = Color.Lime;
await Task.Delay(100);
button1.BackColor = SystemColors.Control;
}
Amit Gupta9y ago
It was implemented since .Net 4.0.
https://msdn.microsoft.com/en-us/library/system.threading.tasks.task(v=vs.110).aspx

You can use that from .Net 4.0.

Moreover, there are several other ways to achive this like using timer (changing backcolor in its tick event).
Anil Sah9y ago
I want to çhange button background and after a while few millisecond back to previous colour means default colour in .net framework beloe 4.5 version because taak.delay is not working here
Amit Gupta9y ago
Elaborate your program scenario. What do you want to achieve?