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

Question

Btn0.Background = Brushes.Red; Task.Delay(100); Btn0.Background = Brushes.Teal;

Hassan Uddin Mughal · Answer

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; }

Anil Sah · Answer

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; }

Anil Sah · Answer

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 Sah · Answer

I can't use àsync thread because I need to run this application in Windows xp there thread don't work as async

Amit Gupta · Answer

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 Sah · Answer

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 Gupta · Answer

Elaborate your program scenario. What do you want to achieve?

Hassan Uddin Mughal · Answer

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; }