How to call Post method on DropDownList selection in ASP.Net MVC?

Question

can anyone please help me about how to invoke a post method on changing the drop down list selection? I have Index method in my controller which takes me to index page. There i have placed a dropdown list using Html.Dropdown containing items like 1,2,3,etc. I want to call post method for Index whenever i makes any selection from the dropdown.

regards, kapil

ignore my ans ! i missed the mvc part ! blush

Preets
– Preets

2009-12-30 10:48:17 +00:00
Commented Dec 30, 2009 at 10:48 — Preets
– Preets, Commented Dec 30, 2009 at 10:48

Pankaj · Accepted Answer · 2009-12-30 10:54:47Z

1

You can do this using JQuery

 <select id="idXYZ" name="XYZ" onchange="SetUnit(this.value)">
 <%=  ViewData["YourValue"]%>
</select>

Now use JQuery

<script type="text/javascript">
function SetUnit(unit) {
        $.post("/Admin/YourMethod?itemid=" + unit.toString(), function(data) {
            var data = eval('(' + data + ')');
            $("#idunit").html(data.Value);
        });
    }

</script>

answered Dec 30, 2009 at 10:54

Pankaj

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3 Comments

Pankaj Over a year ago

If you are not using Jquery then use Ajax post method directly//POST http.open("POST", url, true);

Jaqen H'ghar Over a year ago

Thanks Pankaj, but instead of <select>, i have used <%=Html.DropDownList...>. Then i did the same as you have said above. But unfortunately it's not working for me.

Pankaj Over a year ago

@@Kapil you are not using JQuey that's why your $.post is not working.Please use ajax post. see this article to use ajax post viralpatel.net/blogs/2008/12/…

Brian Mains · Accepted Answer · 2009-12-30 10:46:44Z

0

Are you using JQuery? You could use $.post to post your data in the onchange event... I think in the web forms way it was using a _doPostBack call in the onchange event if you set AutoPostBack to true... not 100% sure about that.

HTH

answered Dec 30, 2009 at 10:46

Brian Mains

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2 Comments

Jaqen H'ghar Over a year ago

Thanks Brian. I am using Javascript to handle onchange event. How can i do so there?

Brian Mains Over a year ago

try doing _doPostBack('<Select element name>', '<command>') and see if that works. That is a part of the MS Ajax framework and so you need to reference that.

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