CHart demo

<UserControl x:Class="Silverlighchartdemo.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="300" d:DesignWidth="400" 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">
        <sdk:DataGrid AutoGenerateColumns="False" Height="126" HorizontalAlignment="Left" Margin="37,50,0,0" Name="dataGrid1" VerticalAlignment="Top" Width="290" />
        <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="114,19,0,0" Name="button1" VerticalAlignment="Top" Width="75" />
        <toolkit:Chart HorizontalAlignment="Left" Margin="96,223,0,0" Name="chart1" Title="Chart Title" VerticalAlignment="Top">
            <toolkit:ColumnSeries DependentValuePath="X" IndependentValuePath="Y">
                <toolkit:ColumnSeries.ItemsSource>
                    <PointCollection>
                        <Point>1,10</Point>
                        <Point>2,20</Point>
                        <Point>3,30</Point>
                        <Point>4,40</Point>
                    </PointCollection>
                </toolkit:ColumnSeries.ItemsSource>
            </toolkit:ColumnSeries>
        </toolkit:Chart>
    </Grid>
</UserControl>

.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

using Microsoft.SharePoint.Client;

using System.Windows.Controls.DataVisualization.Charting;

namespace Silverlighchartdemo

{

    public partial class MainPage : UserControl

    {

           public string webFullURL = @"URL";

        

             List stud = null;

             ListItemCollection lists = null;

             List<Student> students = new List<Student>();

       

        private delegate void UpdateUIMethod(List<Student> studentList);

        public MainPage()

        {

            InitializeComponent();

            Loaded += new RoutedEventHandler(MainPage_Loaded);

        }

       

        void MainPage_Loaded(object sender, RoutedEventArgs e)

        {

            ClientContext spContext = ClientContext.Current;

            if (spContext == null)

            {

                spContext = new ClientContext(webFullURL);

                spContext.Load(spContext.Web);

                stud = spContext.Web.Lists.GetByTitle("StudentInfo");

                spContext.Load(stud);

                CamlQuery query = new CamlQuery();

                string strQuery = @"<View><ViewFields><FieldRef Name='AssignedTo'/>

<FieldRef Name='Name'/><FieldRef Name='Mathematics'/> 

<FieldRef Name='Physics'/><FieldRef Name='Chemistry'/>

<FieldRef Name='Computer'/></ViewFields></View>";

                query.ViewXml = strQuery;

                lists = stud.GetItems(query);

                spContext.Load(lists);

                spContext.ExecuteQueryAsync(OnSiteLoadSuccess, null);

            }

        }

        private void OnSiteLoadSuccess(object sender, ClientRequestSucceededEventArgs e)

        {

            foreach (ListItem item in lists)

            {

                Student student = new Student();

                student.Name = item["Name"].ToString();

                student.Mathematics = Int32.Parse(item["Mathematics"].ToString());

                student.Physics = Int32.Parse(item["Physics"].ToString());

                student.Chemistry = Int32.Parse(item["Chemistry"].ToString());

                student.Computer = Int32.Parse(item["Computer"].ToString());

                students.Add(student);

            }

            UpdateUIMethod up = new UpdateUIMethod(updateUI);

            this.Dispatcher.BeginInvoke(up, students);

        }

       

        private void updateUI(List<Student> tasks)

        {

            dataGrid1.ItemsSource = tasks;

            dataGrid1.SelectionMode = DataGridSelectionMode.Single;

        }

    

        public class Student

{

     public string Name { get; set; }

     public int Mathematics { get; set; }

     public int Physics { get; set; }

     public int Chemistry { get; set; }

     public int Computer { get; set; }

}

    }

}