Understanding Dynamic Web Templates

The preceding example gives you a good idea of what happens when you create a new page from a DWT. When you attach a DWT to a new page, what actually happens is that Expression Web 4 takes the code content from the DWT and places it in your new page. However, unlike a “normal” page, the application knows that only the editable regions within the page should be available for changes, so it looks for the editable regions and blocks all the other content. After content is inserted in the editable regions, the result is the same as any other HTML page except that the code contains the commented-out code calls for the editable regions. However, because they are commented out, the browser ignores them.