C# WPF Text Box as International Phone Number Validation
I have a textbox in c# wpf (windows presentation foundation) and I want to save the textbox data as international phone number e.g (+91-333-5548771). If someone type against this format he will receive error message (ideally on real time). Can anyone help me? I am completely new and trying adding code under
private void textBox_TextChanged(object sender, TextChangedEventArgs e)
i tried before to fix this question to how to check input validation so i did these steps and i recommend you to do that if you want to check input validation .
if(check string length to be a fixed length depend on international phone numbers) if(make a country first two number +98 list and check is there any country for this phone number) if(check all the characters to be numerical )
then all done
the phone is correct
you can check it synchronized and asynchronized and i recommend you to do synchronized because it will get all of CPU power to calculate input in constant .