Enhancing Security with MAUI OTP Input Validation Techniques

This guide provides instructions on enhancing security by implementing input validation techniques for OTP inputs. This can be done by verifying the format and length of the code.

XAML:

   <syncfusion:SfOtpInput x:Name="otpInput" Length="6" ValueChanged="otpInput_ValueChanged"/>

C#:

namespace OtpInputSample
{
   public partial class MainPage : ContentPage
   {
       private string _otpInput = "976584";

       public MainPage()
       {
           InitializeComponent();
       }

       private void otpInput_ValueChanged(object sender, OtpInputValueChangedEventArgs e)
       {
           if (e.NewValue?.Length != otpInput.Length)
           {
               otpInput.InputState = OtpInputState.Warning;
           }
           else if (e.NewValue?.Length == otpInput.Length && otpInput.Value != _otpInput)
           {
               otpInput.InputState = OtpInputState.Error;
           }
           else if (e.NewValue?.Length == otpInput.Length && otpInput.Value == _otpInput)
           {
               otpInput.InputState = OtpInputState.Success;
           }

       }
   }
}

Output:

You can download the complete sample from GitHub.

Conclusion

We hope you found this guide helpful for enhancing security with MAUI OTP Input validation techniques. For more features, visit our .NET MAUI OTP Input feature tour page. You can also explore our .NET MAUI OTP Input documentation to understand better how to present and manipulate data.

Please let us know in the comments section below if you have any queries or need clarification. Alternatively, you can contact us by creating a support ticket. We are always happy to assist!