Bind Database to Silverlight 4 Chart

Silverlight doesn't support any database providers. You need to get the data using a web service or wcf service. This data willbe put in a data model and will be binded to silverlight chart control.

I have created the service but I need help with the binding to the chart.  I can bind it to a datagrid but not a chart.

can we your xaml code and binding code?

XAML Code

<UserControl x:Class="SilverlightWithWCFService.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    d:DesignHeight="650" d:DesignWidth="525" xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk" xmlns:toolkit="http://schemas.microsoft.com/winfx/2006/xaml/presentation/toolkit">

    <Grid x:Name="LayoutRoot" Background="White" Height="650" Width="847">
           <toolkit:Chart  HorizontalAlignment="Left" Margin="27,432,0,0" Name="Chart1" Title="LEI Index" VerticalAlignment="Top" Height="206" Width="452">
            <toolkit:Chart.Series>
                <toolkit:ColumnSeries x:Name="ColumnSeries1" Title="Index"  
                                  IndependentValueBinding="{Binding Observation}"
                                  DependentValueBinding="{Binding LEI_Index}"
                                   ItemsSource="{Binding}"   />
                         
            </toolkit:Chart.Series>
        </toolkit:Chart>
    </Grid>
</UserControl>

Behind Code

 Private Sub client_LEIListCompleted(ByVal sender As Object, ByVal e As LEIListCompletedEventArgs)
          ColumnSeries1.ItemsSource = e.Result
    End Sub

Examples would be nice