Most developers using Visual Studio are familiar with the
“Find dialog” that you can launch by pressing the “Ctrl + F” key within the
IDE. A surprisingly large number of developers, though, aren’t familiar
with the “Incremental Search” capability within Visual Studio. This enables you
to search within your current document, and enables you to do so without having
to bring up a dialog.
Using Incremental Search
To enable incremental search, just type “Ctrl + i” within
the editor. This will subtly change your cursor, and cause your status
bar at the bottom left of the IDE to change to “Incremental search: (search
term)” – you can then type the search term you are searching for and the editor
will search for it from the current source location you are on (no dialog
required).
Below we did an incremental search for the term “action” and
VS highlighted the first usage it found within the file:

We can then press “Ctrl + i” again to find the
next usage of the same term (and continue this repeatedly):

Pressing “Ctrl + Shift + i” will reverse direction on the
search, and allow us to skip backwards.
You can press the “Esc” key at any point to escape out of
incremental search. More details on incremental search can be found here.
F3 and Shift+F3 – Find Using Previous Search Term
One neat tip to know about incremental search is that after
you press the ESC key to escape out of it, it will add the term you searched
for to the find stack within the IDE. The search term you used will show
up within the “find” drop-down within the VS "standard toolbar:

You can always press the F3 key within Visual Studio to
repeat the last performed search at a later point. This is particularly
useful for scenarios where you search for something, make a code change, and
then want to continue from that point in the code. Just press F3 and
you’ll repeat the last search (in this case “action”) from that new point in
the document – no need to re-type it.
Pressing “Shift + F3” will do a reverse search (from the
current cursor location in the editor) of the last search term used. You
can easily toggle using F3/Shift+F3 to search forward and backwards within your
document.
Ctrl + F3 - Find Using Current Selection
Another neat searching trick that you can use to avoid
having to type your search term is to simply highlight a word (or part of a
word) within the code editor, and then press “Ctrl + F3” to search for the next
usage of it within the current file:

Pressing “Ctrl + F3” will search for the next
instance of the text you have highlighted – allowing you to avoid having to
type it:

Like before, you can use “Ctrl + Shift + F3” to perform a
reverse search if you so choose, to search backwards within the document.
Ctrl + Shift + F – Find in Solution
Sometimes you want to search across your entire
solution.
“Ctrl + F” will bring up the find dialog and default it to
search within the current document. “Shift + Ctrl + F” will bring up the find
dialog and default it to instead search across the entire solution:

Doing a search like this will bring up the “Find Results”
window within the IDE and allow you to navigate to each found instance of the
term:

You can double-click each item in the “Find Results” window
to navigate to that instance of the search term you searched for.
One tip a lot of people don’t know about is the ability to
press “F8” or “Shift + F8” to navigate to the next/previous instance of that
search term in the list. This can make navigating through them much
faster/easier, and avoid you having to use the mouse.
Shift + F12 - Find Usages
Most developers using Visual Studio know how to highlight a
type and press F12 to “go to definition”. This will bring up the
definition of a class/type, and is a useful way to navigate to where it is
defined.
Many developers don’t know about “Shift + F12” – which
brings up all usages of a particular type. This enables you to quickly
see how a particular type is used. To take advantage of it, simply select
or move the cursor onto a type and press “Shift + F12”:

This will then bring up a “Find Symbol
Results” window that list all usages of this type within the current solution:

Like with the previous tip, you can use “F8” and “Shift F8”
to navigate forward/backward within each item within the list.
Ctrl + Minus and Shift + Ctrl + Minus - Navigate
Backward/Forward
Have you ever navigated to a different code file, looked at
something, and then wanted to navigate back to where you came from? For
example, you use F12 to “go to definition” and then want to return back to the
code that used it?
A feature that a lot of people don’t know about in VS is the
“Navigate Backwards” keystroke – “Ctrl + (minus key)”. This will navigate
to the previous document/location on the navigation stack.
To see this in action, try selecting a type in Visual
Studio. Below I’ve selected the “IController” interface:

Press F12 to navigate to the definition of
it. This opens up a new editor window with the source of the selected
type:

Now to jump back to where we came from, press
“Ctrl + (minus key)” and VS will take us back to where we were:

If you want to move forward in the navigation stack (which
in this case would take us back to the IController.cs file), then press the
“Shift + Ctrl + (minus key)”.
Sara Ford has a good blog post that talks more about this feature, and
explains the conditions when a new location is pushed onto the navigation
stack.
Ctrl + Alt + (down arrow) - Navigate to an Open File
Ever have a ton of files open within the IDE, and want an
easy way to navigate between them?
One useful key sequence you can use is “Ctrl + Alt + (down
arrow)” – this will cause a drop-down to appear within VS that lists all open
files within it:

You can use the arrow keys to select the file
you want to navigate to – or better yet just start typing the file-name and
Visual Studio will highlight it for you within the list. For example,
above I typed "Mo" and
Visual Studio highlighted "ModelBinder.cs". Pressing the "enter" key will navigate me to that file:

This provides a nice, convenient, way to navigate between
files without having to use the mouse or take your hands off the
keyboard. And remember that “Ctrl + (minus)” can be used to navigate you
back to where you came from.