Dynamic url for dojo source combobox
I am trying to use dojo combobox with an Ajax datasource. I have
<div dojoType="dojo.data.ItemFileReadStore"
jsId="tags"
url="<%=ResolveClientUrl("~/Tag/TagMatches")%>" >
</div>
<select dojoType="dijit.form.ComboBox"
store="tags"
value=""
name="tagName">
</select>
Which works, except that I can't limit the search set on the server side because I don't know how to change the url the data is being pulled from to point to the parameter. Any hints?
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If you understand correctly, you want the client to download a different dataset from the server based on some general condition defined elsewhere.
In principle, there is no need to pre-define <div>
. You can also create ItemFileReadStore
directly in JavaScript:
earlier...
var tagMatchUrlBase = '<%=ResolveClientUrl("~/Tag/TagMatches")%>';
later...
var tagMatchUrl = tagMatchUrlBase + "?f=" + escape(somefilterString);
var store = new dojo.data.ItemFileReadStore({url: tagMatchUrl});
tagName.store = store;
// maybe use store.fetch() to pre-select item #1
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This is usually not done with ItemFileReadStore, which is for loading all the data from the front, not filtering on the server.
Rather, you should be using QueryReadStore , JsonReadStore , etc.