using select in EMML created with MashupEditor

The <select> statement in EMML has nothing to do with the <select> element in HTML. Mashups do not create a user interface, they just get data and manipulate it. In fact, <select> in EMML lets you filter out specific fields in a result which is not what you are looking for.

So a few basics and some pointers to the documentation topics which may help:

* if you want users to be able to select some value and have that change something in a UI based on a mashup, the mashup has to have an input parameter that receives the user's selection. This is the <input> statement in EMML or the Input block in Wires. For information on adding input parameters to mashups using Wires, see http://www.jackbe.com/prestodocs/v3.0/wires/inputAction.html and http://www.jackbe.com/prestodocs/v3.0/wires/autoInput2Property.html. If you want to work with EMML directly, see http://www.jackbe.com/prestodocs/v3.0/emml/declareVariablesEtc.html.

* once your mashup has an input parameter, you create an App (with the user interface) that runs that mashup and allows users to select a value and pass it to the mashup. The easiest way is to create a basic App based on your mashup. See http://www.jackbe.com/prestodocs/v3.0/apps/appCreateBasic.html.

In this process, you determine how the mashup input parameter is handled in your App UI. If you allow users to change the input and you make this visible, this creates an input field. For <select>, you specify possible values. Unfortunately, there is a known issue around possible values so right now this may not work for you.

* the alternative is to create a custom App using the App Editor. This is where you create your HTML and JavaScript directly and that runs the mashup. For more information and links, see http://www.jackbe.com/prestodocs/v3.0/apps-dev/editor-intro.html. You should also look through some of the blogs here on MDC for more examples.