Submitt request to SQL table using C# WPF Application

Question

I would like to submit request from WPF application to SQL table. My source is SharePoint list.
I am using Visual Studio 2008 for getting the Data from SharePoint List.
At the bottom I have Submit button which I want to use for inserting data into SQL table.
Below code is working fine for getting the data from SharePoint list. cmdGetRequests Button is working fine
I am new in programming any help be appreciated.
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 RequestsApp.WingtipSite;
using System.Data.SqlClient;
namespace RequestsApp
/// <summary>
/// Interaction logic for Window1.xaml
/// </summary>
public partial class
Window1 : Window
public Window1()
            InitializeComponent();
private void cmdGetRequests_Click(object sender,
RoutedEventArgs e)
InformationGatewayDataContext dc =
new InformationGatewayDataContext(
new Uri("https://organization.xx./_vti_bin/ListData.svc"));
            dc.Credentials = System.Net.CredentialCache.DefaultCredentials;
var source = dc.Requests;
            listBox1.Items.Clear();
foreach (var dev
in source)
string devName = dev.ID +
" " + dev.FT + " " + dev.TX +
" " + dev.EG +
" " + dev.CompanyName + " " + dev.EmailAddr +
" " + dev.Flag +
" " + dev.StatusDate + " " + dev.Date +
" " + dev.Priority +
" " + dev.Source;
                listBox1.Items.Add(devName);
private void cmdSendRequests_Click(object sender,
RoutedEventArgs e)
simam

Answer 1

Thank you for the giving me right direction. I am able to get the list from SharePoint list into WPF application and submit data to SQL table.
Now I need to have Delete button which will delete the SharePoint list data. and then exit the application.
my Delete button is not working , I am using below code for deleting the list data
private void cmdDeleteRequests_Click(object sender,
RoutedEventArgs e)
InformationGatewayDataContext dc =
new InformationGatewayDataContext(
new Uri("https://organization.xx./_vti_bin/ListData.svc"));
            dc.Credentials = System.Net.CredentialCache.DefaultCredentials;
var source = dc.Requests;
            listBox1.Items.Clear();
foreach (var dev
in source)
string devName = dev.ID +
" " + dev.FT + " " + dev.TX +
" " + dev.EG + " " + dev.CompanyName +
" " + dev.EmailAddr + " " + dev.Flag +
" " + dev.StatusDate + " " + dev.Date +
" " + dev.Priority +
" " + dev.Source;
                listBox1.Items.Add(devName);
simam