Is there a shortcut for Duplicate Line command in Visual Studio 2008?
Some similar examples:
Here's a macro based on the one in the link posted by Wael, but improved in the following areas:
Imports System
Imports EnvDTE
Imports EnvDTE80
Public Module Module1
Sub DuplicateLine()
Dim sel As TextSelection = DTE.ActiveDocument.Selection
sel.StartOfLine(0) '' move to start
sel.EndOfLine(True) '' select to end
Dim line As String = sel.Text
sel.EndOfLine(False) '' move to end
sel.Insert(ControlChars.NewLine + line, vsInsertFlags.vsInsertFlagsCollapseToEnd)
End Sub
End Module