ION Script Advanced Examples





The following examples illustrate more advanced programming concepts in ION Script. They are designed to be most informative when the source code is examined along with each example.

Dynamic Droplist Example     Frame code   Display code   Droplist code
Shows how to build a dynamic HTML droplist with IDL. 

Dynamic Table Example     Main code   Table code
Shows how to build a dynamic HTML table with IDL. This example is discussed in the ION_DATA_OUT entry in the "Tag Reference" chapter of the ION Script User's Guide. 

Passing IDL Variables to ION Script Example     Source code
Shows how to pass scalar IDL variables to ION Script and how to use the "$ION.uniqueID" system variable to label temporary files.  
Also demonstrates the use of the FORMAT attribute in the ION_VARIABLE tag. 

Image Processing Example     Source code
Demonstrates how to process an image with just a mouse click. 

JavaScript form validation   Main code   Visualization code
Shows how to validate data by using JavaScript. 

Locate areas of NYC   Source code
Shows how to use ION and JavaScript to capture events. Also demonstrates coding for individual browser types and the use of HTML attributes in ION tags that are newly available to the ION programmer.

World Map JavaScript Example     Routing code   IE code   Netscape code
An example of how to use JavaScript to capture mouse events in an ION_IMAGE configured as an image map. The example tests for the browser type and opens the appropriate page. 

World Map JavaScript Example 2     Source code
Demonstrates how to use JavaScript to capture the mouse position over an ION_IMAGE. Also demonstrates coding for individual browser types. 

Large data set example   Source code
Shows how to work around browser URL length limits when using large data sets. 

Guessing Game Example   First page   "Yes" code   "No" code   Guess frame   Log frame
An example that illustrates several programming techniques including using the ION_IF tag, passing $Form variables via a URL, getting scalar IDL variables into ION script variables, and using the "$ION.uniqueID" system variable to label temporary files. 

User's Guide Example Application  
Demonstrates how to create a complete ION Script application.
This example is discussed in the "Creating ION Script Applications"
chapter of the ION Script User's Guide.
Source code:   ex1_main.ion   ex1_scale.ion   ex1_form.ion   ex1_validate.ion   ex1_data.ion

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