Fix formatting of aspx file in Visual Studio?
I was having the same problem, and I found the answer on Scott Gu's blog.
The solution is to setup the formatting rules in Visual Studio (right click on any tag, click on Formatting and Validation, click on Tag Specific Options)
When press ctrl-k, ctrl-d the document will format as per your settings. If a closing tag does not move to a new line, it's because there is no space between the end tag and what is preceding it. This happens because Visual Studio is being careful to not change how the page is rendered.
For the full blog post checkout Scott Gu's blog post.
I found a way that works.
In the list with HTML there is a File Extension Option.
I added ASPX to that list and said to edit it with an XML editor (I suppose I could have just right clicked it and opened it with the xml editor, but I did not think of that till after).
Anyway, once it is open as an XML File I formatted it (ctrl+k, ctrl+d) and it formated the way I wanted it. I then removed the extension mapping and reopend the file again.
One last formatting adjusted the tab spacing and I was perfect!
Note: When I did this the top line had this change made: from Page Language="C#" to Page="" Language="C#" I changed it back manually and all seemed to be well.
Later Note: Sadly, Visual Studio messes up the formatting every time I run the solution. Note that pressing ctrl+k, ctrl+d is fine and keeps my nice formatting, but when I run, Visual Studio collapses it down to a very unreadable format. :( Don't know how to fix it....
The answer should be:Tools-Options->Text Editor->HTML-Format->Tag Specific OptionsThen in ASP.NET Controls look for your tag. If it's not there you might need to Add it (New Tag) and set the Line breaks as you want them.
However I've found that this does not always work.Visual Studio respects the per tag colorization but Line breaks are not always respected.
So if this doesn't work for you, you might need to do a Search-Replace hack (Look for and replace with a NewLine in the middle), thenk try Format document and that should work.