Xamarin Android - Access textview onclick within a Fragment

Issue

I am trying to access a TextView that is part of a Fragment, in a seperate Click function.

public class FragmentHome : AndroidX.Fragment.App.Fragment
    {
        public override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);
        }

        public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
        {
            View view = inflater.Inflate(Resource.Layout.fragment_home, container, false);

            // Initialise View's Textviews & TextInput
            TextView genderButton= view.FindViewById<TextView>(Resource.Id.genderButton);
            TextView secondButton = view.FindViewById<TextView>(Resource.Id.secondButton);
            TextInputEditText firstInput = view.FindViewById<TextInputEditText>(Resource.Id.firstInput);

            // set up click actions
            genderButton.Click += GenderButton_Click;

            return view;
        }


        private void GenderButton_Click(object sender, System.EventArgs e)
        {
            if (genderButton.Text == "Male")
            {
                genderButton.Text = "Female";
            }
            else
            {
                genderButton.Text = "Male";
            }
        }
    }

I am trying to access the Text of the genderButton, but I get the error "The name 'genderButton' does not exist in the current context". I have tried adding both

TextView genderButton = FindViewById<TextView>(Resource.Id.genderButton);

and

View view = inflater.Inflate(Resource.Layout.fragment_home, container, false); TextView genderButton = view.FindViewById<TextView>(Resource.Id.genderButton);

But the first one has the problem that FindViewById doesn't exist in the current context, and the second option obviously won't work because it would be inflating a new fragment, instead of defining the context for genderButton.

Is there a way where that I can properly define the context for genderButton or send the genderButton data with the Click event?

Solution

this is a basic C# scope problem. You are declaring genderButton inside of OnCreateView, so it only has scope inside that method. If you want to use it elsewhere in the code, you need to declare it at the class level, not inside of a method

TextView genderButton;

public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
        {
            View view = inflater.Inflate(Resource.Layout.fragment_home, container, false);

            // Initialise View's Textviews & TextInput
            genderButton= view.FindViewById<TextView>(Resource.Id.genderButton);
            TextView secondButton = view.FindViewById<TextView>(Resource.Id.secondButton);
            TextInputEditText firstInput = view.FindViewById<TextInputEditText>(Resource.Id.firstInput);

            // set up click actions
            genderButton.Click += GenderButton_Click;

            return view;
        }

Answered By - Jason