How to use nested frameset in web design

The set of frames within another frameset is called a nested frameset. A frameset file can contain more than one nested set of frames. Most Web pages that use frames actually use nested frames, and most of the predefined frameset in Dreamweaver also uses nesting. If you have a different number of frames in different rows or columns in a set of frames, you need to use nested frameset.

For example, the most common frame layout has a frame in the top row (a logo for the company in the frame), and there are two frames (a navigation frame and a content frame) on the bottom line. This layout requires a nested frameset: A two-row frameset with a two-column frameset nested in the second row.

A two-row frameset that has a two-column frameset nested in the second row

Dreamweaver will automatically nest the frameset as needed, and if you use the Framework split tool in Dreamweaver, you don't need to consider which frameworks will be nested and which frames are not nested in such detail.

There are two ways to nest frameset in HTML: An internal frameset can be defined in the same file as an external frameset, or it can be defined separately in different files. Each predefined frameset in Dreamweaver defines all of its frameset in the same file.

Both types of nesting produce the same visual effect, and it is difficult to tell which type of nesting is used if you don't see the code. The most common use of external frameset files in Dreamweaver is as follows: When you open a frameset file within a frame using the open in frame command, you may have problems setting up the link target. Usually the easiest way to do this is to define all the frameset in a single file.