Write ClientSide code from Custom ASP .NET Extender server side ExtenderControlBase - asp.net

Question

I'm extending ExtenderControlBase control in ASP .NET. It's called:
public class LookupExtender : ExtenderControlBase
Basically what it doest in something similar to autocomplete function - but static. LookupExtender has TypeName & ListName attritbutes that specify:
class that has string[] GetList(string listName) method
name of the list that will be passed to GetList method
And now, LookupExtender creates TypeName instance on the fly (reflection), calls GetList method and I would like to render string[] result to client side as array, so that extender client-side code has static source for autosuggestion.
Is there any way to render JavaScript from LookupExtender class?
This is my sample code (currently autosuggestion values are hardcoded):
set_TargetTextBoxID: function (value) {
this._targetTextBoxID = value;
$(function () {
var availableTags = [
"Switzerland",
"Poland",
"Europe",
"USA",
"Asia"
];
$("#" + value).autocomplete({
source: availableTags,
minLength: 0,
close: function () {
$(this).blur();
}
}).focus(function () {
$(this).autocomplete("search", "");
});
});
}

Answer 1

Turned out to be pretty easy
server side of extender:
protected override void RenderInnerScript(ScriptBehaviorDescriptor descriptor)
{
var listSource = System.Reflection.Assembly.GetExecutingAssembly().CreateInstance(SourceType) as ILookupExtenderListSource;
if (listSource == null) return;
var lookupList = listSource.GetList(SourceList);
descriptor.AddProperty("LookupArray", lookupList);
}
client side js script:
CIPNet.Extenders.LookupBehavior.prototype = {
initialize: function() {
CIPNet.Extenders.LookupBehavior.callBaseMethod(this, 'initialize');
},
dispose: function() {
CIPNet.Extenders.LookupBehavior.callBaseMethod(this, 'dispose');
},
//
// Property accessors
//
get_LookupArray: function() {
return this._lookupArray;
},
set_LookupArray: function(value) {
this._lookupArray = value;
},
get_TargetTextBoxID: function() {
return this._targetTextBoxID;
},
set_TargetTextBoxID: function(value) {
this._targetTextBoxID = value;
var that = this;
$(function() {
var showSuggestion = function () {
$(this).autocomplete("search", "");
};
var availableTags = that._lookupArray;
$("#" + value).autocomplete({
source: availableTags,
delay: 0,
minLength: 0
}).click(showSuggestion);
});
}
};