Is there a way to set TAB button to work as 4 spaces in Visual Studio 2010 instead of going to Edit->Advanced->Untabify Selected Lines?
If you don't see the formatting option, you can do Tools->Import and Export settings to import the missing one.
You can edit this behavior in:
Tools->Options->Text Editor->All Languages->Tabs
Change Tab to use "Insert Spaces" instead of "Keep Tabs".
Note you can also specify this per language if you wish to have different behavior in a specific language.
For VS2010 and above (VS2010 needs a plugin). If you have checked/set the options of the tab size in Visual Studio but it still won't work. Then check if you have a .editorconfig file in your project! This will override the Visual Studio settings. Edit the tab-size in that file.
This can happen if you install an Angular application in your project with the Angular-Cli.
See MSDN blog
First set in the following path Tools->Options->Text Editor->All Languages->Tabs if still didn't work modify as mentioned below Go to Edit->Advanced->Set Indentation ->Spaces
None of these answer were working for me on my macbook pro. So what i had to do was go to:
Preferences -> Source Code -> Code Formatting -> C# source code.
From here I could change my style and spacing tabs etc. This is the only project i have where the lead developer has different formatting than i do. It was a pain in the butt that my IDE would format my code different than theirs.