MFC vc++ deleting column in list view control

[Member_14575556]

In the blow code snippet, the DeleteColumn parameters takes 0 instead of "i" from the for loop. Why do we use 0 there and when I try using "i" there it didn't completely delete the column. I can't understand the process.

int nColumnCount = m_myListCtrl.GetHeaderCtrl()->GetItemCount();

    // Delete all of the columns.
    for (int i=0; i < nColumnCount; i++)
    {
        m\_myListCtrl.DeleteColumn(0);// here why do we use 0 instead of "i" and when I use 
                                              //"i" it didn't completely delete the column.
    }

[Victor Nijegorodov]

After you have deleted the column 0 the next column (the former column 1) becomes the column 0. Another way to delete all the columns:

  for (int i = nColumnCount - 1; i >= 0; i--)
  {
      m\_myListCtrl.DeleteColumn(i);
  }

[Member_14575556]

Okay now I understand. Thanks :)