Line Numbering
BCGControlBar Pro (MFC)
BCGSuite (MFC)
BCGControlBar for .NET
The advanced edit control displays line numbers on the left side. The developer can easily turn on/off the line numbers and customize this column's margins and colors. This feature makes the navigation inside the edit control easier.
Sample code:
// Enable line numbers:
m_wndEdit.SetLineNumbersMargin ();