Answers

• AlessandroCaliaro ITMember ✭✭✭✭✭

  July 2018

  Switch should have a "IsToggled" boolean property… https://docs.microsoft.com/en-us/dotnet/api/xamarin.forms.switch?view=xamarin-forms

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• Szbesta Member ✭✭✭

  July 2018

  @Bhautik I dont think thats possible as the toggled event is no bindable property. What you can do is create your own switch controll which has a Command that is executed after it is toggled, you can then bind a command from your ViewModel to the command!

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• Bhautik Member ✭✭✭

  July 2018

  @Szbesta said:
  @Bhautik I dont think thats possible as the toggled event is no bindable property. What you can do is create your own switch controll which has a Command that is executed after it is toggled, you can then bind a command from your ViewModel to the command!

  Do you have any example?

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• Szbesta Member ✭✭✭

  July 2018

  How to make a custom switch well....
  Just make a class inheriting from the switch class and give it a command property.
  But no i dont have a specific example, however, there are more than enough examples of custom controls if you google it.
  Tons of options:
  https://docs.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/custom-renderer/view
  https://mindofai.github.io/Creating-Custom-Controls-with-Bindable-Properties-in-Xamarin.Forms/

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• seanyda GBMember ✭✭✭✭✭

  July 2018

  I think the best way to do it would be create a property in your ViewModel like this

  private bool _isSwitchToggled = false;
          public bool IsSwitchedToggled
          {
              get { return _isSwitchToggled; }
              set { 
                  _isSwitchToggled = value;
                  OnPropertyChanged(nameof(IsSwitchedToggled));
              }
          }
  

  and just bind that to the IsToggledProperty on the control. You can then have full use in your ViewModel whether it's toggled or not. Making a custom switch cell seems well unnecessary... unless im missing something ?

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• Szbesta Member ✭✭✭

  July 2018

  I guess(ed) he wants to bind a command to the Toggled event as saig in his question might as well be wrong in my interpretation there.

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• Bhautik Member ✭✭✭

  July 2018 edited July 2018

  @Szbesta said:
  I guess(ed) he wants to bind a command to the Toggled event as saig in his question might as well be wrong in my interpretation there.

  Right, I want to bind a command to the toggled event and I have multiple switch and on particular switch toggle i want to refresh list in listview.

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• AlessandroCaliaro ITMember ✭✭✭✭✭

  July 2018

  if you need to bind a command to an event you should use behaviours.

  here is a wonderful lib

  https://github.com/davidbritch/behaviors

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• AdrianBowles USMember ✭✭

  November 2018 edited November 2018

  Trying to get the behaviors to work with a switch and struggling and searching around it would appear others are too and looking for a simple solution. I simply want to bind the switch to trigger a command and can pass the toggled property as an event.

  
  <Switch.Behaviors>
  
  </Switch.Behaviors>
  

  and the code behind

      public ICommand ToggledCommand1 => new Command(async x => {
          await DisplayAlert("Toggled", "head", "OK");
      });
  

  but I get a compilation but the method is not invoked when I execute and toggle the switch. Any ideas on what is missing or a simple example would be great.

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