Hi Amy, Well, I have complete control over the database. This where we might have a problem, it seemed at the time that creating a table with around 200 columns would be unreasonable. A table was created to handle each of the products. Each product has as many as 20-30 columns and for the most part, do not relate to each other. I pondered over normalization for over a week. But now look at the issue...
Hmm, what would be the issue in creating a single arrayCollection from all sources? How would this differ in any way from loading a single enormous array directly from the db? Looks like I¹m down to two options, recreate the db and over half the constructed application to deal with the changes in code, or figure out a way to combine the tables within the application or the Union query as you suggested. -- Blair From: Amy <[EMAIL PROTECTED]> Reply-To: <flexcoders@yahoogroups.com> Date: Thu, 21 Aug 2008 18:32:56 -0000 To: <flexcoders@yahoogroups.com> Subject: [flexcoders] Re: Change dataProvider at runtime? --- In flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> , "cox.blair" <[EMAIL PROTECTED]> wrote: > > Does anyone have experience with changing a dataprovider at runtime? > > Scenerio: a grocery store Database has four tables, one for Produce, > Dairy, Meat and Other. Each of the tables is a different > arrayCollection/HTTPService > > I want to be able to have four comboboxes, each able to point to any > of the four arrayCollection's, therefore to change the datasource of > each series in a chart. > > Why? Because it would allow you to compare values of different data > sets in a single chart. I did not expect this would be such an issue. > > If anyone can provide any information at all, it would be a huge help. Preferred method: If you have any control over the database, FIX THE DESIGN. If not, use a UNION query to normalize the data, then use a filter function to filter on grocery type and refresh the ArrayCollection. Icky method: If you have no control over the backend at all, then you can use something like myChart.dataProvider = nastyArrayCollection ;-) HTH; Amy
