How to: Post Changes to SQL Database

using System.Data;
using System.Data.OleDb;
using System.Data.SqlClient;

// ... 
public partial class Window1 : Window {
    SqlDataAdapter sqlAdapter;
    public Window1() {
        InitializeComponent();
        InitSQLDataAdapter();
        grid.ItemsSource = GetData();
    }
    private void InitSQLDataAdapter() {
        SqlConnection sqlConn = new SqlConnection(
            "Data Source=SQLServerName;Initial Catalog=Northwind;Integrated Security=True");
        sqlAdapter = new SqlDataAdapter(
            "SELECT [RegionID], [RegionDescription] FROM [Region]", sqlConn);
        sqlAdapter.UpdateCommand = new SqlCommand(
            "UPDATE Region SET RegionDescription = @RegionDescription WHERE RegionID = @RegionID",
            sqlConn);
        sqlAdapter.UpdateCommand.Parameters.Add("@RegionID", SqlDbType.Int, 4, "RegionID");
        sqlAdapter.UpdateCommand.Parameters.Add("@RegionDescription", SqlDbType.VarChar,
            50, "RegionDescription");
    }
    private DataView GetData() {
        DataSet ds = new DataSet();
        sqlAdapter.Fill(ds);
        return ds.Tables[0].DefaultView;
    }
    private void Button_Click(object sender, RoutedEventArgs e) {
        grid.View.CommitEditing();
        sqlAdapter.Update(((DataView)grid.DataSource).Table);
    }
}

<Grid>
    <dxg:GridControl x:Name="grid" AutoPopulateColumns="True" 
                     HorizontalAlignment="Stretch" 
                     VerticalAlignment="Top">
        <dxg:GridControl.View>
            <dxg:TableView NavigationStyle="Cell"/>
        </dxg:GridControl.View>
    </dxg:GridControl>
    <Button HorizontalAlignment="Left" 
            VerticalAlignment="Bottom" 
            Click="Button_Click">
        Save Data
    </Button>
</Grid>