To add a Check New Username server behavior to your page, follow
these steps:
1. From the Server Behaviors panel, click the Add (+) button and choose User Authentication ???
Check New Username. The Check New Username dialog box is displayed.
2. Select the form element that contains the requested username from the Username list. If a form
element is called username, Dreamweaver automatically selects that entry.
CAUTION CAUTION
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Crafting Multiple-Page Applications 23
3. Enter the path to the file you want a user to see if her requested name is already stored in the data
source in the If Already Exists, Go To field, or click Browse to locate the file.
4. Click OK when you??™re finished.
Summary
Although numerous Web applications use only a single dynamic page, crafting multipage applications gives
you more opportunity to build a robust user experience for your visitors. It??™s key for every Web developer to
master the various methods for passing information from one page to another. When building your first
multiple-page Web applications, keep these points in mind:
n Dreamweaver can send and receive parameters from one page to another by appending them in
an encoded fashion to the linked URL. The additional text is known as a query string.
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