Mvc Listbox Click Event in jQuery

Posted on 2010-09-23
Last Modified: 2013-11-08

I have used the Html.ListBox helper to generate a <select> list in my view like so:

<%= Html.ListBox("MaterialTypesList", Model.MaterialsList, new { @class = "StockListBox", SelectionMode="Single"})%>

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in jQuery I have attached an event handler (not on the change event but the click event) to capture the value of the clicked item to proceed with it:


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However, each time I click a value, it does not correspond, and the first click is not taken into account:

function MaterialsList_Changed()
                $("#ModelsList > option").remove();

                var materialId = $("#MaterialTypesList option:selected").val();
                $.post("http://localhost/" + virtualPath + "/Stock/LoadBrands/" + materialId, null, function (data)
                    data = $.map(data, function (item, a)
                        return "<option value=" + item.Value + ">" + item.Text + "</option>";


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My questions:

1) why doesn't this work, it looks like it should be easy simple
2) why does the html attribute SelectionMode on the Listbox not work ?

thx !

Question by:gerrie-govaerts
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Expert Comment

ID: 33744719
-- use change event

-- also are you sure that id is MaterialTypesList only,

-- try the class selector

-- last but not the least, put this code inside document ready event handler


Author Comment

ID: 33751738

I have used everything that's in your code, and I cannot use the change event - I already discussed this in another issue, it must be the click event.

It always has worked using a normal <select> tag, but now I'm using the HtmlHelper to generate a listbox and nothing works anymore....

Author Comment

ID: 33751923
To add some more information:

I made a difference between the working select list (hand typed) and the Html.ListBox helper method (which I prefer of course).

The main difference is that the attribute multiple="multiple" makes things crash in my case.

How can I use the Html.ListBox method and specify that I DON'T want to have the multiple="multiple" attribute ?

Thx !
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LVL 40

Accepted Solution

gurvinder372 earned 500 total points
ID: 33751989

Author Closing Comment

ID: 33752016
Thank you ! You saved my day ;-)
It's quite unusual to think about a dropdownlist when you need a listbox, but in fact... it remains a select tag
LVL 40

Expert Comment

ID: 33752028
true, not sure why microsoft decided to go this way, since all it differs is in the fact that one has multiple attribute, and other doesn't have.

thanks for the points :)

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