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  2. WEB400
  3. December 2010

Re: Navigating JSON sub-arrays dynamically

Hi Mike,

Does ASP/.net provide a reusable component to handle this "parent/child" drop down list challenge or do you have to code for each occurance? This "parent/child" pattern is common in a lot of business apps we run into. (IE Select a car mfg such as Ford or GM, then based on the parent, show the models (F150, Explorer)

Thanks, Paul



Mike Wills wrote:
I figured it out finally! I found this:
http://inderpreetsingh.com/2010/10/14/javascriptjson-find-index-in-an-array-of-objects/

<http://inderpreetsingh.com/2010/10/14/javascriptjson-find-index-in-an-array-of-objects/>The
problem with Kevin's solution is that the IDs will not be sequential or they
can change.

From there these are the two lines that work:

var i = findIndexByKeyValue(jsonRequestType, "Id", key);
$.each(jsonRequestType[i].HourTypeCodes, function(i, item) {

--
Mike Wills
http://mikewills.me




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