Let Expression Web Teach You

Split View:

You can learn a lot of what goes on behind the scenes by working in Split View. This presents the HTML coding at the top of the screen and the design view portion at the bottom. If you create invalid code, it will be underlined in red in the Code View. If you make an error like omitting a tag, Expression Web will highlight the mistake in yellow. Both color codes will offer you a hint when you mouse over the error to help you fix it.

Apply Styles Task Pane:

It pays to watch what is going on the the Apply Styles task pane. You see instantly if you have added any embedded styles that could be moved into your external CSS file.

The Status Bar:

The Status Bar sits in the lower right portion of the program window. This little bar offers you a wealth of information.

The Status Bar

If you have set your Page Editor Options, and if you see a small yellow triangle with an exclamation point inside, this is your visual clue that you have some coding error.

Coding Error Notification

You can mouse over the warning icon and get a pop-up that will give you more details. It is very important that you fix any coding errors. The good news is that Expression Web will tell you what is wrong.

Split View

Double-click on the warning icon. Expression Web will change to Split View and the error will be highlighted. Mouse over the highlighted code and a "hint" will appear that explains the problem. In this case, the closing forward-slash was omitted in one of the meta tags. Once you fix the issue, the error message will go away and you know your coding is now error free.

Also in the Status Bar, you can turn Visual Aids off or on. If you are new, I recommend you keep visual aids turned on. This puts "borders" around editable regions so they can be easily seen.

Reports:

Expression Web also has three options that can help you locate specific problems within your code: