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Updating a picker selecteditem from a listview itemselected event

jenova1628jenova1628 Member ✭✭✭
edited February 4 in Xamarin.Forms

Hi guys,
I am seem to be having a problem where I select a item from my listview and do CustomerList.SelectedItem = SearchResults.SelectedItem; but the picker stays null. basically I have a list of customers in a picker and in my listview I have the same list but I have given a button which shows a search bar in a new stacklayout .

Here is my code

How i populate my customer picker at the load
BindingContext = new JobSheetViewModel() { CustomersList = App.CustomersDatabase.GetAllCustomers().Select(c => new CustomersViewModel() { Id = c.Id, Name = c.Name }).ToList() };

my searchbar text changed function

`private void SearchBar_TextChanged(object sender, TextChangedEventArgs e)
        SearchBarController = (SearchBar)sender;
        SearchResults.ItemsSource = GetCustomers(e.NewTextValue);

function to get the listdata using my viewmodel

   ` IEnumerable<CustomersViewModel> GetCustomers(string searchText = null)
        var customers = new List<CustomersViewModel>();

        foreach (CustomersViewModel i in CustomerList.ItemsSource)
            customers.Add(new CustomersViewModel()
                Name = i.Name,
                Id = i.Id

        if (string.IsNullOrEmpty(searchText))
            return customers;

        return customers.Where(p => p.Name.StartsWith(searchText));

function for when i press a listview item

`private void SearchResults_ItemSelected(object sender, SelectedItemChangedEventArgs e)
        SearchLayout.IsVisible = false;
        FormLayout.IsVisible = true;

        CustomerList.SelectedItem = SearchResults.SelectedItem;
        SearchResults.SelectedItem = null;
        SearchBarController.Text = null;


  • jenova1628jenova1628 Member ✭✭✭

    If I use SelectedIndex on the main thread it populates it but because i am looping through all the picker items for the listview if I change the searchbar text then the listview selected index of 0 is not that same of the pickers index

  • jenova1628jenova1628 Member ✭✭✭


    using this line of code solved the issue
    CustomerList.SelectedItem = (BindingContext as JobSheetViewModel).CustomersList.FirstOrDefault(c => c.Name == ((CustomersViewModel)e.SelectedItem).Name);

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