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Dynamic content sources overview

  1. Dreamweaver User Guide
  2. Introduction
    1. Responsive web design basics
    2. What's new in Dreamweaver
    3. Web development using Dreamweaver - An Overview
    4. Dreamweaver / Common Questions
    5. Keyboard shortcuts
    6. Dreamweaver system requirements
    7. Feature summary
  3. Dreamweaver and Creative Cloud
    1. Synchronize Dreamweaver settings with Creative Cloud
    2. Creative Cloud Libraries in Dreamweaver
    3. Using Photoshop files in Dreamweaver
    4. Work with Adobe Animate and Dreamweaver
    5. Extract web-optimized SVG files from Libraries
  4. Dreamweaver workspaces and views
    1. The Dreamweaver workspace
    2. Optimize Dreamweaver workspace for visual development
    3. Search files based on filename or content | Mac OS
  5. Set up sites
    1. About Dreamweaver sites
    2. Set up a local version of your site
    3. Connect to a publishing server
    4. Set up a testing server
    5. Import and export Dreamweaver site settings
    6. Bring existing websites from a remote server to your local site root
    7. Accessibility features in Dreamweaver
    8. Advanced settings
    9. Set site preferences for transferring files
    10. Specify proxy server settings in Dreamweaver
    11. Synchronize Dreamweaver settings with Creative Cloud
    12. Using Git in Dreamweaver
  6. Manage files
    1. Create and open files
    2. Manage files and folders
    3. Getting and putting files to and from your server
    4. Check in and check out files
    5. Synchronize files
    6. Compare files for differences
    7. Cloak files and folders in your Dreamweaver site
    8. Enable Design Notes for Dreamweaver sites
    9. Preventing potential Gatekeeper exploit
  7. Layout and design
    1. Use visual aids for layout
    2. About using CSS to lay out your page
    3. Design responsive websites using Bootstrap
    4. Creating and using media queries in Dreamweaver
    5. Present content with tables
    6. Colors
    7. Responsive design using fluid grid layouts
    8. Extract in Dreamweaver
  8. CSS
    1. Understand Cascading Style Sheets
    2. Laying out pages using CSS Designer
    3. Using CSS preprocessors in Dreamweaver
    4. How to set CSS Style preferences in Dreamweaver
    5. Move CSS rules in Dreamweaver
    6. Convert inline CSS to a CSS rule in Dreamweaver
    7. Work with div tags
    8. Apply gradients to background
    9. Create and edit CSS3 transition effects in Dreamweaver
    10. Format code
  9. Page content and assets
    1. Set page properties
    2. Set CSS heading properties and CSS link properties
    3. Work with text
    4. Find and replace text, tags, and attributes
    5. DOM panel
    6. Edit in Live View
    7. Encoding documents in Dreamweaver
    8. Select and view elements in the Document window
    9. Set text properties in the Property inspector
    10. Spell check a web page
    11. Using horizontal rules in Dreamweaver
    12. Add and modify font combinations in Dreamweaver
    13. Work with assets
    14. Insert and update dates in Dreamweaver
    15. Create and manage favorite assets in Dreamweaver
    16. Insert and edit images in Dreamweaver
    17. Add media objects
    18. Adding videos in Dreamweaver
    19. Insert HTML5 video
    20. Insert SWF files
    21. Add audio effects
    22. Insert HTML5 audio in Dreamweaver
    23. Work with library items
    24. Using Arabic and Hebrew text in Dreamweaver
  10. Linking and navigation
    1. About linking and navigation
    2. Linking
    3. Image maps
    4. Troubleshoot links
  11. jQuery widgets and effects
    1. Use jQuery UI and mobile widgets in Dreamweaver
    2. Use jQuery effects in Dreamweaver
  12. Coding websites
    1. About coding in Dreamweaver
    2. Coding environment in Dreamweaver
    3. Set coding preferences
    4. Customize code coloring
    5. Write and edit code
    6. Code hinting and code completion
    7. Collapse and expand code
    8. Reuse code with snippets
    9. Lint code
    10. Optimize code
    11. Edit code in Design view
    12. Work with head content for pages
    13. Insert server-side includes in Dreamweaver
    14. Using tag libraries in Dreamweaver
    15. Importing custom tags into Dreamweaver
    16. Use JavaScript behaviors (general instructions)
    17. Apply built-in JavaScript behaviors
    18. About XML and XSLT
    19. Perform server-side XSL transformations in Dreamweaver
    20. Performing client-side XSL transformations in Dreamweaver
    21. Add character entities for XSLT in Dreamweaver
    22. Format code
  13. Cross-product workflows
    1. Installing and using extensions to Dreamweaver
    2. In-App updates in Dreamweaver
    3. Insert Microsoft Office documents in Dreamweaver (Windows only)
    4. Working with Fireworks and Dreamweaver
    5. Edit content in Dreamweaver sites using Contribute
    6. Dreamweaver-Business Catalyst integration
    7. Create personalized email campaigns
  14. Templates
    1. About Dreamweaver templates
    2. Recognizing templates and template-based documents
    3. Create a Dreamweaver template
    4. Create editable regions in templates
    5. Create repeating regions and tables in Dreamweaver
    6. Use optional regions in templates
    7. Define editable tag attributes in Dreamweaver
    8. How to create nested templates in Dreamweaver
    9. Edit, update, and delete templates
    10. Export and import xml content in Dreamweaver
    11. Apply or remove a template from an existing document
    12. Edit content in Dreamweaver templates
    13. Syntax rules for template tags in Dreamweaver
    14. Set highlighting preferences for template regions
    15. Benefits of using templates in Dreamweaver
  15. Mobile and multiscreen
    1. Create media queries
    2. Changing page orientation for mobile devices
    3. Create web apps for mobile devices using Dreamweaver
  16. Dynamic sites, pages and web forms
    1. Understand web applications
    2. Set up your computer for application development
    3. Troubleshoot database connections
    4. Removing connection scripts in Dreamweaver
    5. Design dynamic pages
    6. Dynamic content sources overview
    7. Define sources of dynamic content
    8. Add dynamic content to pages
    9. Changing dynamic content in Dreamweaver
    10. Display database records
    11. Provide and troubleshoot live data in Dreamweaver
    12. Add custom server behaviors in Dreamweaver
    13. Building forms using Dreamweaver
    14. Use forms to collect information from users
    15. Create and enable ColdFusion forms in Dreamweaver
    16. Create web forms
    17. Enhanced HTML5 support for form elements
    18. Develop a form using Dreamweaver
  17. Building applications visually
    1. Build master and detail pages in Dreamweaver
    2. Build search and results pages
    3. Build a record insert page
    4. Build an update record page in Dreamweaver
    5. Building record delete pages in Dreamweaver
    6. Use ASP commands to modify database in Dreamweaver
    7. Build a registration page
    8. Build a login page
    9. Build a page that only authorized users can access
    10. Securing folders in Coldfusion using Dreamweaver
    11. Using ColdFusion components in Dreamweaver
  18. Test, preview, and publish websites
    1. Preview pages
    2. Preview Dreamweaver web pages on multiple devices
    3. Test your Dreamweaver site
  19. Troubleshooting
    1. Fixed issues
    2. Known issues




The user interface has been simplified in Dreamweaver and later. As a result, you may not find some of the options described in this article in Dreamweaver and later. For more information, see this article.

About dynamic content sources

A dynamic content source is a store of information from which you can retrieve and display dynamic content for use in a web page. Sources of dynamic content include not only information stored in a database, but values submitted by HTML forms, values contained in server objects, and other content sources.

Dreamweaver lets you easily connect to a database and create a recordset from which to extract dynamic content. A recordset is the result of a database query. It extracts the specific information you request and allows you to display that information within a specified page. You define the recordset based on the information contained in the database and the content you want to display.

Different technology vendors may use different terminology for a recordset. In ASP and ColdFusion, a recordset is defined as a query. If you are using other sources of data, such as user input or server variables, the name of the data source that is defined in Dreamweaver is the same as the data source name itself.

Dynamic websites require a data source from which to retrieve and display dynamic content. Dreamweaver lets you use databases, request variables, URL variables, server variables, form variables, stored procedures, and other sources of dynamic content. Depending on the data source, you can either retrieve new content to satisfy a request, or modify the page to meet the needs of users.

Any content source that you define in Dreamweaver is added to the list of content sources in the Bindings panel. Then you can insert the content source into the currently selected page.

About recordsets

Web pages can’t directly access the data stored in a database. Instead, they interact with a recordset. A recordset is a subset of the information (records), extracted from the database using a database query. A query is a search statement designed to find and extract specific information from a database.

When using a database as a content source for a dynamic web page, you must first create a recordset in which to store the retrieved data. Recordsets serve as an intermediary between the database storing the content and the application server generating the page. Recordsets are temporarily stored in the application server’s memory for faster data retrieval. The server discards the recordset when it is no longer needed.

A query can produce a recordset that includes only certain columns, only certain records, or a combination of both. A recordset can also include all the records and columns of a database table. However, because applications rarely need to use every piece of data in a database, you should strive to make your recordsets as small as possible. Because the web server temporarily holds the recordset in memory, using a smaller recordset uses less memory, and can potentially improve server performance.

Database queries are written in Structured Query Language (SQL, pronounced “sequel”), a simple language that allows you to retrieve, add, and delete data to and from a database. The SQL builder included with Dreamweaver lets you create simple queries without having to understand SQL. However, if you want to create complex SQL queries, a basic knowledge of this language lets you create more advanced queries, and provides you with greater flexibility in designing dynamic pages.

Before you define a recordset for use with Dreamweaver, you must create a connection to a database and—if no data exists yet—enter data into the database. If you have not yet defined a database connection for your site, refer to the database connection chapter for the server technology you are developing for, and follow the instructions on creating a database connection.

About URL and form parameters

URL parameters store retrieved information input by users. To define a URL parameter you create a form or hypertext link that uses the GET method to submit data. The information is appended to the URL of the requested page and communicated to the server. When using URL variables, the query string contains one or more name-value pairs that are associated with the form fields. These name-value pairs are appended to the URL.

Form parameters store retrieved information that is included in the HTTP request for a web page. If you create a form that uses the POST method, the data submitted by the form is passed to the server. Before you begin, make sure you pass a form parameter to the server.

About session variables

Session variables let you store and display information maintained for the duration of a user’s visit (or session). The server creates a different session object for each user and maintains it for a set period of time or until the object is explicitly terminated.

Because session variables last throughout the user’s session and persist when the user moves from page to page within the website, they’re ideal for storing user preferences. Session variables can also be used for inserting a value in the page’s HTML code, assigning a value to a local variable, or providing a value to evaluate a conditional expression.

Before defining session variables for a page, you must create them in the source code. After you create a session variable in the web application’s source code, you can use Dreamweaver to retrieve its value and use it in a web page.

How session variables work

Session variables store information (usually form or URL parameters submitted by users) and make it available to all of a web application’s pages for the duration of the user’s visit. For example, when users log on to a web portal that provides access to e‑mail, stock quotes, weather reports, and daily news, the web application stores the login information in a session variable that identifies the user throughout the site’s pages. This allows the user to see only the types of content they have selected as they navigate through the site. Session variables can also provide a safety mechanism by terminating the user’s session if the account remains inactive for a certain period of time. This also frees server memory and processing resources if the user forgets to log off a website.

Session variables store information for the life of the use session. The session begins when the user opens a page within the application and ends when the user does not open another page in the application for a certain period of time, or when the user explicitly terminates the session (typically by clicking a “log-off” link). While it exists, the session is specific to an individual user, and every user has a separate session.

Use session variables to store information that every page in a web application can access. The information can be as diverse as the user’s name, preferred font size, or a flag indicating whether the user has successfully logged in. Another common use of session variables is to keep a running tally, such as the number of questions answered correctly so far in an online quiz, or the products the user selected so far from an online catalog.

Session variables can only function if the user’s browser is configured to accept cookies. The server creates a session ID number that uniquely identifies the user when the session is first initiated, then sends a cookie containing the ID number to the user’s browser. When the user requests another page on the server, the server reads the cookie in the browser to identify the user and to retrieve the user’s session variables stored in the server’s memory.

Collecting, storing, and retrieving information in session variables

Before creating a session variable, you must first obtain the information you want to store, and then send it to the server for storage. You can gather and send information to the server using HTML forms or hypertext links containing URL parameters. You can also obtain information from cookies stored on the user’s computer, from the HTTP headers sent by the user’s browser with a page request, or from a database.

A typical example of storing URL parameters in session variables is a product catalog that uses hard-coded URL parameters created using a link to send product information back to the server to be stored in a session variable. When a user clicks the “Add to shopping cart” link, the product ID is stored in a session variable while the user continues to shop. When the user proceeds to the check-out page, the product ID stored in the session variable is retrieved.

A form-based survey is a typical example of a page that stores form parameters in session variables. The form sends the selected information back to the server, where an application page scores the survey and stores the responses in a session variable to be passed to an application that might tally up the responses gathered from the survey population. Or the information might be stored in a database for later use.

After information is sent to the server, you store the information in session variables by adding the appropriate code for your server model to the page specified by the URL or form parameter. Referred to as the destination page, this page is specified in either the action attribute of the HTML form or the href attribute of the hypertext link on the starting page.

After you store a value in a session variable, you can use Dreamweaver to retrieve the value from session variables and use it in a web application. After you define the session variable in Dreamweaver, you can insert its value in a page.

The HTML syntax for each appears as follows:

<form action="destination.html" method="get" name="myform"> </form> 
<param name="href"value="destination.html">

Both the server technology used and the method you use to obtain the information determines the code used to store the information in a session variable. The basic syntax for each server technology is as follows:


<CFSET session.variable_name = value>


<% Session("variable_name") = value %>

The value expression is usually a server expression such as Request.Form(“lastname”). For example, if you use a URL parameter called product (or an HTML form with the GET method and a text field called product) to gather information, the following statements store the information in a session variable called prodID:


<CFSET session.prodID = url.product>


<% Session("prodID") = Request.QueryString("product") %>

If you use an HTML form with the post method and a text field called txtProduct to gather the information, then the following statements store the information in the session variable:


<CFSET session.prodID = form.txtProduct>


<% Session("prodID") = Request.Form("txtProduct") %>

Example of information stored in session variables

You’re working on a site with a large audience of senior citizens. In Dreamweaver, add two links to the Welcome screen that let users customize the size of the site’s text. For larger, easy-to-read text, the user clicks one link, and for regular-size text, the user clicks another link.

Information stored in session variables

Each link has a URL parameter called fontsize that submits the user’s text preference to the server, as the following Adobe ColdFusion® example shows:

<a href="resort.cfm?fontsize=large">Larger Text</a><br> 
<a href="resort.cfm?fontsize=small">Normal Text</a>

Store the user’s text preference in a session variable and use it to set the font size on each page the user requests.

Near the top of the destination page, enter the following code to create a session called font_pref that stores the user’s font size preference.


<CFSET session.font_pref = url.fontsize>


<% Session("font_pref") = Request.QueryString("fontsize") %>

When the user clicks the hypertext link, the page sends the user’s text preference in a URL parameter to the destination page. The code on the destination page stores the URL parameter in the font_pref session variable. For the duration of the user’s session, all the pages of the application retrieve this value and display the selected font size.

ASP and ColdFusion application variables

In ASP and ColdFusion, you can use application variables to store and display information that is maintained for the lifetime of the application and persists from user to user. The application’s lifetime lasts from the time the first user requests a page in the application to the time the web server is stopped. (An application is defined as all the files in a virtual directory and its subdirectories.)

Because application variables last for the lifetime of the application, and persist from user to user, they’re ideal for storing information that must exist for all users, such as the current time and date. The value of the application variable is defined in the application’s code.

ASP server variables

You can define the following ASP server variables as sources of dynamic content: Request.Cookie, Request.QueryString, Request.Form, Request.ServerVariables, and Request.ClientCertificates.

ColdFusion server variables

You can define the following ColdFusion server variables:

Client variables

Associate data with a specific client. Client variables maintain the application’s state as the user moves from page to page in the application, as well as from session to session. “Maintaining state” means to preserve information from one page (or session) to the next so that the application remembers the user, and the user’s previous choices and preferences.

Cookie variables

Access cookies passed to the server by the browser.

CGI variables

Provide information about the server running ColdFusion, the browser requesting a page, and other information about the processing environment.

Server variables

Can be accessed by all clients and applications on the server. They persist until the server is stopped.

Local variables

Created with the CFSET tag or CFPARAM tag within a ColdFusion page.


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