Binding not happening in Silverlight 3 from class library - silverlight-3.0

Question

----------Class library file where i am calling WCF service-------------
public class AllEmployeeViewModel
{
// public ObservableCollection<Employee> Employees { get; set; }
public List<Employee> Employees { get; set; }
public void GetAllEmployees()
{
Proxy.EmployeeListCompleted += new EventHandler<EmployeeListCompletedEventArgs>(client_EmployeeListCompleted);
Proxy.EmployeeListAsync();
}
void client_EmployeeListCompleted(object sender, EmployeeListCompletedEventArgs e)
{
try
{
if (e.Error == null)
{
Employees = e.Result;
}
}
catch (Exception)
{
throw;
}
}
}
---------Mainpage.xaml-----------------
<UserControl.Resources>
<scr:AllEmployeeViewModel x:Key="empKey" />
</UserControl.Resources>
<Grid x:Name="MainGrid" Background="White" Width="400"
Height="407" DataContext="{Binding Source={StaticResource empKey}}">
<Grid x:Name="grdAllEmp" DataContext="{Binding Path=Employees}">
<data:DataGrid AutoGenerateColumns ="True" Height="274"
HorizontalAlignment="Left" Margin="8,8,0,0"
Name="dgEmployee" VerticalAlignment="Top" Width="385"
ItemsSource="{Binding}">
<data:DataGrid.Columns>
<data:DataGridTextColumn Header="FName" Binding="{Binding FName}">
</data:DataGridTextColumn>
<data:DataGridTextColumn Header="LName" Binding="{Binding LName}">
</data:DataGridTextColumn>
</data:DataGrid.Columns>
</data:DataGrid>
</Grid>
</Grid>
here i am sending data from class file as a datacontext to mainpage.xaml but binding is not happening, in my class file AllEmployeeViewMode i am able hit wcf and get data here
if (e.Error == null)
{
Employees = e.Result;
}
any help how to solve this would be great
thanks
prince
answer how i solved it
public class AllEmployeeViewModel
{
public ObservableCollection<Employee> Employees { get; set; }
WCF.EMPServiceClient Proxy;
public AllEmployeeViewModel()
{
try
{
Employees = new ObservableCollection<Employee>();
Proxy = new WCF.EMPServiceClient();
}
catch (Exception ex)
{
throw ex;
}
}
public ICommand GetEmployees
{
get
{
return new GetAllEmployeeCommand(this);
}
}
public void GetAllEmployees()
{
Proxy.EmployeeListCompleted += new EventHandler<EmployeeListCompletedEventArgs>(client_EmployeeListCompleted);
Proxy.EmployeeListAsync();
}
void client_EmployeeListCompleted(object sender, EmployeeListCompletedEventArgs e)
{
try
{
if (e.Error == null)
{
var emp = e.Result;
foreach (var item in emp)
Employees.Add(item);
}
}
catch (Exception)
{
throw;
}
}
}
then the values got binded in my xaml

Answer 1

You have not implement NotifyPropertyChanged for the Employees property. I can see a property above commented, which is an ObsevableCollection. If you use that, there should not be any problem with binding.
See this link for details.