Why do I keep getting mixed tabs and spaces in a Visual Studio 2010 C# code window?
Visual StudioVisual Studio-2010Visual Studio Problem Overview
I have just been working on a C# file (Global.asax.cs) in a web application for the last hour or so, and I have been shown the prompt to "tabify" or whatever about four times. Each time I choose to tabify and save the files, yet at some seemingly random point later on, I get prompted again.
I am using ReSharper, yet this doesn't happen when I code at home, also using ReSharper. Only at work.
Visual Studio Solutions
Solution 1 - Visual Studio
Are you using the Productivity Power Tools VS 2010 extension? If so, go to Tools -> Options -> and choose Productivity Power Tools. Here you can turn off the option to Fix Mixed Tabs. This will turn off this warning.
Power Tools for Visual Studio 2010
Power Tools for Visual Studio 2012
Solution 2 - Visual Studio
The mixed tabs and spaces might come from your visual studio text editor setting. You can decide if you want visual studio to insert spaces or tabs here:
Tools/Options/ -> Text Editor/All Languages/Tabs, select the "Keep Tabs" option.
Solution 3 - Visual Studio
Choose the "Untabify" option since VS defaults to spaces, not tabs. If you choose "Tabify" the next time you add a line, VS will use spaces and you'll see the prompt over and over.
Solution 4 - Visual Studio
Resharper uses seperate tab/space settings to visual studio. In the Resharper options, check "General Formatter Style -> How to align when tabs are used for indents". This setting is used when resharper is formatting code (such as refactoring etc) and defaults to "User Spaces".
Also, in "Edit -> Advanced" menu, there is a "View Whitespace" option (Ctrl + E, S) which may be useful!