// We should clear the sort glyph on the old column
private void ShowSortGlyph(int lastSortedColumn, int columnToSort)
{
// Get the handle of the ListView header
IntPtr hHeader = Win32NativeMethods.SendMessage(lvRestorePoints.Handle, Win32NativeMethods.LVM_GETHEADER, IntPtr.Zero, IntPtr.Zero);
IntPtr newColumn = new IntPtr(columnToSort);
IntPtr prevColumn = new IntPtr(lastSortedColumn);
Win32NativeMethods.HDITEM hdi;
IntPtr rtn;
// If the last sorted column exists
if (lastSortedColumn != -1 && lastSortedColumn != columnToSort)
{
hdi = new Win32NativeMethods.HDITEM();
hdi.mask = Win32NativeMethods.HDI_FORMAT;
rtn = Win32NativeMethods.SendMessageItem(hHeader, Win32NativeMethods.HDM_GETITEM, prevColumn, ref hdi);
hdi.fmt &= ~Win32NativeMethods.HDF_SORTDOWN & ~Win32NativeMethods.HDF_SORTUP;
// Clear the sort glyph
rtn = Win32NativeMethods.SendMessageItem(hHeader, Win32NativeMethods.HDM_SETITEM, prevColumn, ref hdi);
}
hdi = new Win32NativeMethods.HDITEM();
hdi.mask = Win32NativeMethods.HDI_FORMAT;
rtn = Win32NativeMethods.SendMessageItem(hHeader, Win32NativeMethods.HDM_GETITEM, newColumn, ref hdi);
hdi.fmt |= lvRestorePoints.Sorting == SortOrder.Ascending ? Win32NativeMethods.HDF_SORTUP : Win32NativeMethods.HDF_SORTDOWN;
// Send message to the column header to show the sort glyph
rtn = Win32NativeMethods.SendMessageItem(hHeader, Win32NativeMethods.HDM_SETITEM, newColumn, ref hdi);
lastSortedColumn = columnToSort;
}
// We should clear the sort glyph on the old column
private void ShowSortGlyph(int lastSortedColumn, int columnToSort)
{
// Get the handle of the ListView header
IntPtr hHeader = Win32NativeMethods.SendMessage(lvRestorePoints.Handle, Win32NativeMethods.LVM_GETHEADER, IntPtr.Zero, IntPtr.Zero);
IntPtr newColumn = new IntPtr(columnToSort);
IntPtr prevColumn = new IntPtr(lastSortedColumn);
Win32NativeMethods.HDITEM hdi;
IntPtr rtn;
// If the last sorted column exists
if (lastSortedColumn != -1 && lastSortedColumn != columnToSort)
{
hdi = new Win32NativeMethods.HDITEM();
hdi.mask = Win32NativeMethods.HDI_FORMAT;
rtn = Win32NativeMethods.SendMessageItem(hHeader, Win32NativeMethods.HDM_GETITEM, prevColumn, ref hdi);
hdi.fmt &= ~Win32NativeMethods.HDF_SORTDOWN & ~Win32NativeMethods.HDF_SORTUP;
// Clear the sort glyph
rtn = Win32NativeMethods.SendMessageItem(hHeader, Win32NativeMethods.HDM_SETITEM, prevColumn, ref hdi);
}
hdi = new Win32NativeMethods.HDITEM();
hdi.mask = Win32NativeMethods.HDI_FORMAT;
rtn = Win32NativeMethods.SendMessageItem(hHeader, Win32NativeMethods.HDM_GETITEM, newColumn, ref hdi);
hdi.fmt |= lvRestorePoints.Sorting == SortOrder.Ascending ? Win32NativeMethods.HDF_SORTUP : Win32NativeMethods.HDF_SORTDOWN;
// Send message to the column header to show the sort glyph
rtn = Win32NativeMethods.SendMessageItem(hHeader, Win32NativeMethods.HDM_SETITEM, newColumn, ref hdi);
lastSortedColumn = columnToSort;
}
