IBM Cognos 8 Report Studio Cookbook

Validating textbox prompts

There is a report with a textbox prompt. Users are expected to enter a phone number in (nnn)nnn-nnnn format in that prompt.

In this recipe, we will write a code to validate the value entered by the user and submit the report only if the value entered is in specified format.

Getting ready

Pick any report and add a textbox prompt to it. We will add a JavaScript to validate that textbox.

How to do it...

1. Wrap the textbox prompt within a SPAN in the same way as we did in prior recipes.
2. Add the following script to the page footer:

   <script> function ValidatePage() { var theSpan = document.getElementById("A1"); var a = theSpan.getElementsByTagName("input"); /* this captures the textbox */ for( var i = a.length-1; i >= 0; i-- ) { var ...