<Window x:Class="DataBaseTest2.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:DataBaseTest2"
    Title="Window1" Height="300" Width="563" 
    xmlns:my="http://schemas.microsoft.com/wpf/2008/toolkit">
    
    <Window.Resources>
        <!-- create an instance of our DataProvider class -->
        <ObjectDataProvider x:Key="PhysicianDataProvider" ObjectType="{x:Type local:PhysicianDataProvider}"/>
        <!-- define the method which is invoked to obtain our data -->
        <ObjectDataProvider x:Key="Physician" ObjectInstance="{StaticResource PhysicianDataProvider}" MethodName="GetPhysician"/>
    </Window.Resources>

    <DockPanel DataContext="{Binding Source={StaticResource Physician}}">
        <my:DataGrid AutoGenerateColumns="False" Margin="0,0,0,0" Name="dataGrid1"  ItemsSource="{Binding}" Width="400" HorizontalAlignment="Left">
            <my:DataGrid.Columns>
                <my:DataGridTextColumn Binding="{Binding Path=UserName}" Header="UserName" />
                <my:DataGridTextColumn Binding="{Binding Path=PhysicianFirstName}" Header="PhysicianFirstName" />
                <my:DataGridTextColumn Binding="{Binding Path=PhysicianLastName}" Header="PhysicianLastName" />
                <my:DataGridTextColumn Binding="{Binding Path=HospitalName}" Header="HospitalName" />
                <my:DataGridTextColumn Binding="{Binding Path=Department}" Header="Department" />
            </my:DataGrid.Columns>
        </my:DataGrid>
        <StackPanel Orientation="Vertical">
        <Button Height="38" Name="btn_post" Width="72" Click="btn_post_Click">Post</Button>
        <Button Height="38" Name="btn_delete" Width="72" Click="btn_delete_Click">Delete</Button>
        </StackPanel>
    </DockPanel>
</Window>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using DataBaseTest2.NavigoDataSetTableAdapters;

namespace DataBaseTest2
{

    public class NavigoDataProvider
    {
        private static NavigoDataSet navigoDataSet;

        public static NavigoDataSet NavigoDataSet
        {
            get
            {
                if (navigoDataSet == null)
                {
                    navigoDataSet = new NavigoDataSet();
                }
                return NavigoDataProvider.navigoDataSet;
            }
        }
    }

    public class PhysicianDataProvider
    {
        private PhysicianTableAdapter adapter;
        private NavigoDataSet dataset = new NavigoDataSet();


        public PhysicianDataProvider()
        {
            adapter = new PhysicianTableAdapter();
            adapter.Fill(NavigoDataProvider.NavigoDataSet.Physician);

            dataset.Physician.PhysicianRowChanged += new NavigoDataSet.PhysicianRowChangeEventHandler(PhysicianRowModified);
            //dataset.Physician.PhysicianRowDeleted += new NavigoDataSet.PhysicianRowChangeEventHandler(PhysicianRowModified);
        }


        void PhysicianRowModified(object sender, NavigoDataSet.PhysicianRowChangeEvent e)
        {
            adapter.Update(NavigoDataProvider.NavigoDataSet.Physician);
        }

        public DataView GetPhysician()
        {
            return NavigoDataProvider.NavigoDataSet.Physician.DefaultView;
        }
    }
}