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ASP.NET (VB) Auto Complete Combo box that populates dynamically from SQL, 2000+ entries

Posted on 2009-07-08
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Last Modified: 2012-05-07
Requirements:
- Autocomplete
- Populated from SQL query
- Over 2000 records, must not slow page load time
- Free (either provide code yourself or link to free component/code)
- VB
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Question by:Cerixus
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3 Comments
 
LVL 3

Expert Comment

by:Kelevra
ID: 24808303
Hi,
the best way to accomplish this, in my point of view is to use the jQuery's autocomplete:
http://www.pengoworks.com/workshop/jquery/autocomplete.htm

wich takes its data from a xml file.

so you make your Db query create your XML file upon it.

then get this autocomplete linked to this freshly made xml.

Done.
$(function() {
    $.ajax({
        type: "GET",
        url: "dbug.xml",
        dataType: "xml",
        success: function(xml) {
 
            /* Count elements */
 
            var count = jXML.getCount(xml,{"Channel":"channel","Item":"item:has(title)","GUID":"guid[isPermaLink]:lt(3)"});
            alert( count["Channel"] + ", " + count["Item"] + ", " + count["GUID"] );
 
            /* Return objects with a specific attribute */
 
            var attribute = jXML.getAttribute(xml,{"GUID":["guid","isPermaLink",null],"Channel":["channel","id",null]});
            alert( attribute["GUID"] + ", " + attribute["Channel"] );
 
            /* Return objects with a specific attribute value */
 
            var attribute = jXML.getAttribute(xml,{"GUID":["guid","isPermaLink","false"],"Channel":["channel","id","channel_1"]});
            alert( attribute["GUID"] + ", " + attribute["Channel"] );
 
            /* Return a number of objects randomized */
 
            var random = jXML.getRandomObj(xml,{"Title":["item:has(title) > title",null],"URL":["item:has(link) > link",3]});
            for (i = 0; i < random["Title"].length; i++) {
                alert( $(random["Title"][i]).text() );
            }
            for (i = 0; i < random["URL"].length; i++) {
                alert( $(random["URL"][i]).text() );
            }
 
        }
    });
});

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Accepted Solution

by:
Cerixus earned 0 total points
ID: 24918767
Ended up using the Ajax autocomplete extender with a web service as seen in this video: http://www.asp.net/learn/AJAX-videos/video-122.aspx
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