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Multiselect checkbox in xamarin forms cross platform

Jul 10 2020 3:30 AM
Below is the code I'm using for checkbox in xamarin forms, but here I'm able to select only one item, I wanted to select multiple items from the checkbox. To the checkbox the data is binded from the database. Please help me
Checkforms.xaml.cs
public partial class Checkforms : ContentPage
{
private ObservableCollection<HelperModel> statusRecords;
string[] statusList;
public Checkforms()
{
InitializeComponent();
GetUserRoles();
}
public async void GetUserRoles()
{
HttpClient client = new HttpClient();
var response = await client.GetStringAsync("http://**********/api/Masters/getRoles");
var details = JsonConvert.DeserializeObject<List<HelperModel>>(response);
ListView1.ItemsSource = details;
}
private async void ListView1_ItemSelected(object sender, SelectedItemChangedEventArgs e)
{
if (e.SelectedItem == null) return;
var statusData = e.SelectedItem as HelperModel;
((ListView)sender).SelectedItem = null;
HttpClient client = new HttpClient();
var response = await client.GetStringAsync("http://********/api/Masters/getRoles");
var details = JsonConvert.DeserializeObject<List<HelperModel>>(response);
ListView1.ItemsSource = details;
var item = details.Where(x => x.name == statusData.name).FirstOrDefault();
if (item != null)
item.IsSelected = !item.IsSelected;
}
}
Checkforms.xaml
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:d="http://xamarin.com/schemas/2014/forms/design"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
x:Class="Checkbox_listview.Checkforms"
xmlns:lv="clr-namespace:Xamarin.Forms.MultiSelectListView;assembly=Xamarin.Forms.MultiSelectListView" Padding="0,20,0,0">
<ContentPage.Content>
<StackLayout HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand">
<!-- Place new controls here -->
<ListView x:Name="ListView1" ItemSelected="ListView1_ItemSelected" lv:MultiSelect.Enable="true">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<ViewCell.View>
<StackLayout HorizontalOptions="FillAndExpand"
Orientation="Horizontal" Padding="10 ">
<Label Text="{Binding name}" HorizontalOptions="StartAndExpand"/>
<Image Source="select.png" IsVisible="{Binding IsSelected}"
VerticalOptions="Center" HeightRequest="40"
WidthRequest="40"/>
</StackLayout>
</ViewCell.View>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackLayout>
</ContentPage.Content>
</ContentPage>
HelperModel.cs
public class HelperModel : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
private bool isSelected = false;
public string name { get; set; }
public bool IsSelected
{
get { return isSelected; }
set
{
isSelected = value;
OnPropertyChanged("IsSelected");
}
}
//OnProperty changed method
protected void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
}
Thanks in advance

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Answers (1)