For some cases databinding is not working properly in WPF

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Issue of Databinding in WPF

XAML:
<Window x:Class="WpfApplication2.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"        
        xmlns:vc="clr-namespace:Visifire.Charts;assembly=WPFVisifire.Charts"
        Title="MainWindow" Height="350" Width="525">

    <Grid>
        <StackPanel Orientation="Horizontal" VerticalAlignment="Center" HorizontalAlignment="Center"  >
            <DataGrid Width="119" Height="300" x:Name="MyGrid"></DataGrid>

            <vc:Chart Name="MyChart1" Width="500" Height="300" Padding="10,10" Margin="10,0" AnimatedUpdate="True">

                <vc:Chart.Titles>
                    <vc:Title Text="Visifire DataBinding"></vc:Title>
                </vc:Chart.Titles>

                <vc:Chart.Series>
                    <vc:DataSeries RenderAs="Column" DataSource="{Binding ItemsSource, ElementName=MyGrid}">
                        <vc:DataSeries.DataMappings>
                            <vc:DataMapping MemberName="AxisXLabel" Path="Label"></vc:DataMapping>
                            <vc:DataMapping MemberName="YValue" Path="YValue"></vc:DataMapping>
                        </vc:DataSeries.DataMappings>
                    </vc:DataSeries>
                </vc:Chart.Series>
            </vc:Chart>

        </StackPanel>
    </Grid>           
</Window>

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Code behind file:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Collections.ObjectModel;

namespace WpfApplication2
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();           

            values.Add(new Value() { Label = "Sony", YValue = 50 });
            values.Add(new Value() { Label = "Dell", YValue = 35 });
            values.Add(new Value() { Label = "HP", YValue = 27 });
            values.Add(new Value() { Label = "HCL", YValue = 17 });
            values.Add(new Value() { Label = "Toshiba", YValue = 16 });

            MyGrid.ItemsSource = values;
        }

        ObservableCollection<Value> values = new ObservableCollection<Value>();        
    }
}

Original issue reported on code.google.com by shoaibi...@gmail.com on 2 Nov 2010 at 8:16