CODEWITHSUNDEEP
xamarinxamarin.forms
g.pickardou
g.pickardou

Reputation: 35822

How to refresh ContentPage in pure button click handler

Context

I would like to diagnose a binding problem. Without exposing the problem details here, I decided to put a diagnostic button on my ContentPage, and would like to write a refresh in the most purest stupidest way, just to see, the already bound content shows up this way or not.

Question

So I have my button and its event handler in place, I can not figure out how to call a Refresh or similar?

public partial class MainView : ContentPage
{
    public MainView()
    {
        InitializeComponent();
    }

    void OnButtonClicked(object sender, EventArgs args)
    {
        // I would like to refresh this contentpage here:
    }
}

Upvotes: 2

Views: 7611

Answers (1)

Sharada
Sharada

Reputation: 13601

Simplest way would be to use Navigation.PushAsync, or App.Current.MainPage = new MainView() to reset the UI.

But if you want to simply re-construct the view, then I guess calling InitializeComponent should do the trick. 

void OnButtonClicked(object sender, EventArgs args)
{
    var viewModel = BindingContext;

    BindingContext = null;
    InitializeComponent();

    BindingContext = viewModel;
}

Note: This code only re-constructs the view (not the bound data) - assuming that you don't want to use the navigation or setting the MainPage trick - to refresh the UI.

Upvotes: 2

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