Selecting AutomationElement (SysListView32 item)

Question

I want to select the SysListView32 item of an extrenal process. Here's my code so far, and it's working (I can get the text and index of the item), but how can I select the current item?

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Automation;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Place your cursor over listview and hit enter...");
            Console.ReadLine();
            POINT pt;
            GetCursorPos(out pt);
            IntPtr hwnd = WindowFromPoint(pt);
            AutomationElement el = AutomationElement.FromHandle(hwnd);
            TreeWalker walker = TreeWalker.ContentViewWalker;
            int i = 0;
            for (AutomationElement child = walker.GetFirstChild(el);
                child != null;
                child = walker.GetNextSibling(child))
            {
                MessageBox.Show("Item:" + child.Current.Name);
                //! Select The Item Here ...
            }
        }
        [StructLayout(LayoutKind.Sequential)]
        private struct POINT
        {
            public int x;
            public int y;
        };

        [DllImport("user32.dll")]
        private static extern IntPtr WindowFromPoint(POINT pt);

        [DllImport("user32.dll")]
        private static extern int GetCursorPos(out POINT pt);
    }
}

Answer 1

You'll have to call SendMessage Win API function and specify LVM_SETITEMSTATE as your message. Pass in the window handle of your listview and a LVITEM struct for lParam.

You only need to set the following fields in the LVITEM struct

lvi.state = LVIS_FOCUSED | LVIS_SELECTED;
lvi.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
lvi.iItem = 5 // Index of item to select

Check MSDN to get their values of the states.