Here's a block comment macro for Visual Studio .NET (as I wasn't able to find one and I wanted to find the differences in the API). It seems to work okay for me. Feel free to post bug fixes and so forth. I hope someone finds it useful. Good luck.
The code follows:
' This will comment/uncomment out blocks. Blocks are ' commented at the beginning of the line. ' Assign this to a key (e.g. ctrl-/) and it will toggle the ' current line/block of code. ' This will handle both "//" and "'" style comments. Adapted ' to VS.NET by Tim Stubbs ' Original code from the VS example and (idea from) Adam Solesby ' who originally did this for VC 6 (or earlier). There's been ' quite a few changes to VS.NET so this took a little creative ' adaptation. I hate VB :) Disclaimer: Use at own risk. I did ' it for ME! ' I don't need anything other than block commenting tbh, so ' I've not special cased single line selection. Sub CustomCommentOutVSNET() 'DESCRIPTION: Comments out a selected block of text. Dim win As Window win = ActiveWindow() If win.Type <> EnvDTE.vsWindowType.vsWindowTypeDocument Then MsgBox("This macro can only be run when a text editor _ window is active.") Else TypeOfFile = FileType(ActiveDocument) ' MsgBox "Type: " + CStr(TypeOfFile) If TypeOfFile > 0 And TypeOfFile < 6 Then If TypeOfFile > 3 Then CommentType = "'" ' VB bah. humbug. CommentWidth = 1 Else CommentType = "//" ' C++ and java style comments CommentWidth = 2 End If StartLine = ActiveDocument.Selection.TopLine EndLine = ActiveDocument.Selection.BottomLine If EndLine < StartLine Then Temp = StartLine StartLine = EndLine EndLine = Temp End If For i = StartLine To EndLine ActiveDocument.Selection.GoToLine(i) ' check for nasties like blank lines or short lines ActiveDocument.Selection.EndOfLine(True) Dim objActive As VirtualPoint = _ ActiveDocument.Selection.ActivePoint Dim right, line As Integer right = objActive.DisplayColumn ActiveDocument.Selection.StartOfLine _ (vsStartOfLineOptionsFirstColumn) ActiveDocument.Selection.CharRight _ (True, CommentWidth) line = objActive.Line() If (line > i) Then ' we've shifted line, _ reset to original line ActiveDocument.Selection.GotoLine(i) ActiveDocument.Selection.EndOfLine(True) End If 'Enable the following for debugging 'Dim blah, wibble As String 'wibble = ActiveDocument.Selection.text() 'blah = CommentType If ActiveDocument.Selection.text() = CommentType _ Then ActiveDocument.Selection.Delete() Else ActiveDocument.Selection.EndOfLine(True) wibble = CommentType + ActiveDocument() _ .Selection.text() ActiveDocument.Selection.text() = CommentType _ + ActiveDocument().Selection.text() End If Next Else MsgBox("Unable to comment out the highlighted text" _ + vbLf + _ "because the file type was unrecognized." + vbLf + _ "If the file has not yet been saved, " + vbLf + _ "please save it and try again.") End If End If End Sub