public void SortViewByColumn(int index)
{
try
{
IntPtr hWndWin = NativeMethods.FindWindowEx(this._dlgWrapper.Handle, IntPtr.Zero, "SHELLDLL_DefView", "");
if (hWndWin != IntPtr.Zero)
{
NativeMethods.SendMessage(new HandleRef(this, hWndWin), 273u, (IntPtr)28716, IntPtr.Zero);
int HDN_ITEMCLICKW = -300 - 22;
IntPtr hWndLV = NativeMethods.FindWindowEx(hWndWin, IntPtr.Zero, "SysListView32", IntPtr.Zero);
IntPtr hWndColHd = NativeMethods.FindWindowEx(hWndLV, IntPtr.Zero, "SysHeader32", IntPtr.Zero);
NMHEADER NMH = default(NMHEADER);
NMH.hdr.hwndFrom = hWndColHd;
NMH.hdr.code = (uint)HDN_ITEMCLICKW;
NMH.iItem = index;
NMH.iButton = 0;
IntPtr ptrNMH = Marshal.AllocHGlobal(Marshal.SizeOf <NMHEADER>(NMH));
try
{
Marshal.StructureToPtr <NMHEADER>(NMH, ptrNMH, false);
NativeMethods.SendMessage(new HandleRef(this, hWndLV), 78u, IntPtr.Zero, ptrNMH);
NativeMethods.SendMessage(new HandleRef(this, hWndLV), 78u, IntPtr.Zero, ptrNMH);
}
finally
{
Marshal.FreeHGlobal(ptrNMH);
}
}
}
catch
{
}
}
public void SortViewByColumn(int index)
{
try
{
//handle of the "defView" --> container of the listView
IntPtr hWndWin = NativeMethods.FindWindowEx(_dlgWrapper.Handle, IntPtr.Zero, "SHELLDLL_DefView", "");
if (hWndWin != IntPtr.Zero)
{
//change to details view
NativeMethods.SendMessage(new HandleRef(this, hWndWin), (int)Msg.WM_COMMAND, (IntPtr)(int)DefaultViewType.Details, IntPtr.Zero);
#region sort by date
int HDN_FIRST = (-300);
int HDN_ITEMCLICKW = (HDN_FIRST - 22);
//get the ListView//s hWnd
IntPtr hWndLV = NativeMethods.FindWindowEx(hWndWin, IntPtr.Zero, "SysListView32", IntPtr.Zero);
//get the ColumnHeaders hWnd
IntPtr hWndColHd = NativeMethods.FindWindowEx(hWndLV, IntPtr.Zero, "SysHeader32", IntPtr.Zero);
//now click on column 3 to sort for date
NMHEADER NMH = new NMHEADER();
NMH.hdr.hwndFrom = hWndColHd;
NMH.hdr.code = (uint)HDN_ITEMCLICKW;
NMH.iItem = index;
NMH.iButton = 0;
// Initialize unmanged memory to hold the struct.
IntPtr ptrNMH = Marshal.AllocHGlobal(Marshal.SizeOf(NMH));
try
{
// Copy the struct to unmanaged memory.
Marshal.StructureToPtr(NMH, ptrNMH, false);
NativeMethods.SendMessage(new HandleRef(this, hWndLV), (uint)Msg.WM_NOTIFY, IntPtr.Zero, ptrNMH);
//click again for descending order = newest files first
NativeMethods.SendMessage(new HandleRef(this, hWndLV), (uint)Msg.WM_NOTIFY, IntPtr.Zero, ptrNMH);
}
finally
{
// Free the unmanaged memory.
Marshal.FreeHGlobal(ptrNMH);
}
////if wanted give the dialog a larger size here
//If DialogXSize > 0 And DialogYSize > 0 Then
// SetWindowPos hWndDlg, 0&, 0&, 0&, DialogXSize, DialogYSize, 0&
//End If
//}
#endregion
}
}
catch
{
}
}