Hi,

I am developing sample application using Xamarin.Forms. Here we need to bind the JSON data(List) from WCF Service to ListView .
But i could not able to bind the data in Listview.

Please find the code

Model Class

public class **ModelObject**
    {
        public Object HD_Code { get; set; }
        public String Description { get; set; }
    }

ViewModel Class

public class **SearchRequestViewModel**:INotifyPropertyChanged
{
**public List<ModelObject> myDeserializedObjList = new List<ModelObject>();**
public SearchRequestViewModel()
{
try
{
LoadSite();
}
catch(Exception ex)
{
}
}
public async void LoadSite()
{
**//calling WCF Service to get the value for list ** 
List<ModelObject>   SampleList = await Service.GetUsersite(Parameters);              
Xamarin.Forms.Device.BeginInvokeOnMainThread(() =>
{
// **value successfully retrieved from WCF Service and assigned to the  myDeserializedObjList but UI didn’t update the listview** 
myDeserializedObjList= SampleList;
});
}
public List<ModelObject> **ListViewSource**
{
get { return myDeserializedObjList; }
set 
{
if (myDeserializedObjList!= null)
{
myDeserializedObjList = value;
OnPropertyChanged("ListViewSource");
}
}
}
protected void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
PropertyChanged(this,
new PropertyChangedEventArgs(propertyName));
}
}

View in 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:local="clr-namespace:Sample.ViewModels;assembly= Sample "
  x:Class=" Sample.Views.SearchreqFilter" Title="Filter">
 <ContentPage.BindingContext>
 <local:**SearchRequestViewModel**/>
  </ContentPage.BindingContext>
  <ListView x:Name="Site_listView" ItemsSource="{Binding **ListViewSource**}">
        <ListView.ItemTemplate>
          <DataTemplate>
            <ViewCell>
              <ViewCell.View>
                  <StackLayout Orientation="Vertical"
                               HorizontalOptions="StartAndExpand">
                    <Label Text="{Binding **Description**}"
                           HorizontalOptions="FillAndExpand" />
                  </StackLayout>
              </ViewCell.View>
            </ViewCell>
          </DataTemplate>
        </ListView.ItemTemplate>
      </ListView>
</ ContentPage>

Kindly suggest me on this.