How to display the SharePoint 2010 list items in the Silverlight Datagrid using Client Object Model

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In this article we will be seeing how to display the SharePoint 2010 list items in the Silverlight Datagrid using Client Object Model.

Steps Involved:

Open Visual Studio 2010.
Go to File => New => Project.
Select Silverlight Application template and enter the Name for the project.
Click Ok.
Open MainPage.xaml and replace the code with the following one.

<UserControl xmlns:my="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data" x:Class="SLGetFilesFromDL.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"
   xmlns:data="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data"
   mc:Ignorable="d"
   d:DesignHeight="300" d:DesignWidth="400">
    <Grid x:Name="LayoutRoot" Background="White">
        <my:DataGrid x:Name="dgFilesFromDL" Height="200" Width="300" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto" AutoGenerateColumns="True"
                           Background="#FFEBD0D0" AlternatingRowBackground="#FFF8ECEC">
            <my:DataGrid.RowGroupHeaderStyles>
                <Style TargetType="my:DataGridRowGroupHeader">
                    <Setter Property="PropertyNameVisibility" Value="Collapsed" />
                    <Setter Property="Background" Value="#FF112255" />
                    <Setter Property="Foreground" Value="#FFEEEEEE" />
                    <Setter Property="SublevelIndent" Value="15" />
                </Style>
                
                <Style TargetType="my:DataGridRowGroupHeader">
                    <Setter Property="Background" Value="#44225566" />
                </Style>
            </my:DataGrid.RowGroupHeaderStyles>
        </my:DataGrid>
        <data:DataPager Source="{Binding Path=ItemsSource, ElementName=dgFilesFromDL}" PageSize="7" Margin="166,0,50,0"></data:DataPager>
    </Grid>
</UserControl>

Open MainPage.xaml.cs and replace the code with the following.

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.Threading;
using System.Windows.Data;

namespace SLGetFilesFromDL
{
    public partial class MainPage : UserControl
    {
        private ListItemCollection _empDetails;

        public class Project
        {
            public String empName { get; set; }
        }
        public MainPage()
        {
            InitializeComponent();
            ClientContext context = new ClientContext(ApplicationContext.Current.Url);
            context.Load(context.Web);
            List empDetails = context.Web.Lists.GetByTitle("Employee Details");
            context.Load(empDetails);

            CamlQuery query = new Microsoft.SharePoint.Client.CamlQuery();
            string camlQueryXml = "<View><ViewFields>" +
                "<FieldRef Name=\"Title\" />" +
                "</ViewFields></View>";

            query.ViewXml = camlQueryXml;
            _empDetails = empDetails.GetItems(query);
            context.Load(_empDetails);
            context.ExecuteQueryAsync(new ClientRequestSucceededEventHandler(OnRequestSucceeded), null);
        }

        private void OnRequestSucceeded(Object sender, ClientRequestSucceededEventArgs args)
        {
            // This is not called on the UI thread.
            Dispatcher.BeginInvoke(BindData);
        }

        private void BindData()
        {

            List<Project> projects = new List<Project>();
            foreach (ListItem li in _empDetails)
            {
                projects.Add(new Project()
                {
                    empName = li["Title"].ToString(),
                });
            }
            PagedCollectionView pcv = new PagedCollectionView(projects);
            this.dgFilesFromDL.ItemsSource = pcv;
            pcv.SortDescriptions.Add(new System.ComponentModel.SortDescription("empName", System.ComponentModel.ListSortDirection.Ascending));
        }
    }
}

Refer to the following link Integrating Silverlight in SharePoint 2010 to add Silverlight webpart in the SharePoint 2010.

Output:

Names are sorted in Ascending Order:

Names are sorted in Descending Order:

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