C#

PropertyCondition pc = new PropertyCondition(AutomationElement.NameProperty, name);
            return parent.FindFirst(TreeScope.Descendants, pc); 

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Automation;
using System.Windows.Automation.Provider;
using System.Threading;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Forms;

namespace AmmeaBahavathi
{
    class OutLookUIAutomation
    {
        [DllImport("user32.dll")]
        private static extern bool SetForegroundWindow(IntPtr hWnd);
        [DllImport("user32.dll")]
        private static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);
        [DllImport("user32.dll")]
        private static extern bool IsIconic(IntPtr hWnd);
        private const int SW_RESTORE = 9;                

        static void Main(string[] args)
        {           
            // look for outlook already running
            Process[] processes = Process.GetProcessesByName("outlook");
            AutomationElement aeOutLook = null;
            Process proc1 = new Process();
         
            if (processes.Length == 0)
            {
                // start new outlook process              
                proc1.StartInfo.FileName = "outlook";
                proc1.Start();
                proc1.WaitForInputIdle();
                Thread.Sleep(5000);
                aeOutLook = AutomationElement.FromHandle(proc1.MainWindowHandle);
            }
            else
            {
                proc1.Close();
                // pull up the existing outlook window
                IntPtr hWnd = processes[0].MainWindowHandle;
                if (IsIconic(hWnd))
                {
                    ShowWindowAsync(hWnd, SW_RESTORE);
                }
                SetForegroundWindow(hWnd);
            }
                       
            
            if (aeOutLook != null)
            {
                Thread.Sleep(1000);

                //Invoke Inbox
                AutomationElement aeNew = FindAutomationElementByName(aeOutLook, "Inbox");
                if (aeNew != null)
                {                          
                    Thread.Sleep(5000);
                    InvokePattern ipNew = aeNew.GetCurrentPattern(InvokePattern.Pattern) as InvokePattern;
                    ipNew.Invoke();
                }
                else
                {
                    Console.WriteLine("aeInbox:Null");
                }

            }
            else
            {
                Console.WriteLine("aeOutLook:Null");
            }
            Console.ReadLine();
        }

        public static AutomationElement FindAutomationElementByName(AutomationElement parent, string name)
        {
            PropertyCondition pc = new PropertyCondition(AutomationElement.NameProperty, name);
            return parent.FindFirst(TreeScope.Descendants, pc);            
        }      
    }
}

private void listBox1_SelectionChanged(object sender, SelectionChangedEventArgs e)
       {
           string str = (String)listBox1.SelectedItem;
           listBox1.SelectedIndex =-1;

       }