Answers

• JohnH GBMember ✭✭✭✭✭

  May 2019

  @AndreGraciano.2753 said:
  I wonder if anyone could help me if someone else has made a similar screen?!

  That looks pretty easy, what have you tried so far?

  1
• ClintStLaurent USUniversity ✭✭✭✭✭

  May 2019

  Getting started in Xamarin
  https://docs.microsoft.com/en-us/xamarin/cross-platform/get-started/

  XAML Basics
  https://docs.microsoft.com/en-us/xamarin/xamarin-forms/xaml/xaml-basics/

  Data binding basics
  https://docs.microsoft.com/en-us/xamarin/xamarin-forms/xaml/xaml-basics/data-binding-basics

  Tutorial site
  http://redpillxamarin.com/2018/03/12/2018-101-vs2017-new-solution/

  0
• AndreGraciano.2753 BRMember ✭✭

  May 2019

  @JohnH said:

  @AndreGraciano.2753 said:
  I wonder if anyone could help me if someone else has made a similar screen?!

  That looks pretty easy, what have you tried so far?

  Sorry, I'm learning to speak English ... lol

  My question and the logical process of comparing passwords, buttons

  0
• ClintStLaurent USUniversity ✭✭✭✭✭

  May 2019

  This is not a Xamarin eco-system question. Its a "teach me C-Sharp" question. There are countless sites that handle general C# questions.

  We can't teach you C# from scratch in a thread. You're going to have to learn C# through a proper guided course, either at a local community college, university, MS Learn, Lynda or the numerous books available.

  C# Introduction tutorials.
  https://www.dreamincode.net/forums/topic/218000-learning-c#-series-new-to-c#-start-here/

  C# books on Amazon
  https://www.amazon.com/s?k=Learn+C#&ref=nb_sb_noss

  C# for beginners at Microsoft Virtual Academy
  https://mva.microsoft.com/en-us/training-courses/c-fundamentals-for-absolute-beginners-16169?l=Lvld4EQIC_2706218949

  1
• jezh Member, Xamarin Team Xamurai

  May 2019

  @AndreGraciano.2753
  I have created a simple demo, the main code is as follows:
  MainPage.xaml

   <StackLayout Orientation="Vertical">
      <!-- Place new controls here -->
      <Entry 
         HorizontalOptions="Fill"
         VerticalOptions="Center"
         IsPassword="True"
         x:Name="pwdEntry"  
         TextChanged="PwdEntry_TextChanged"/>
      <Button  Text="Login"  
               x:Name="loginBtn" 
               Clicked="LoginBtn_Clicked" 
               IsEnabled="False"/>
  </StackLayout>
  

  MainPage.xaml.cs

   private void LoginBtn_Clicked(object sender, EventArgs e)
      {
      }
      private void PwdEntry_TextChanged(object sender, TextChangedEventArgs e)
      {
         // var entry = (Entry)sender;
         // string oldinput = e.OldTextValue;
          string newInput = e.NewTextValue;
  
          if (!newInput.Equals(""))
          {
              loginBtn.IsEnabled = true;
          } else {
              loginBtn.IsEnabled = false;
          }
      }
  

  The effect is
  

  0