Ajax.ActionLink repeating the same exact GET request multiple times

I'm learning MVC and am currently making a simple SCRUM tracking system as I go along.

The problem I'm having is that when an Ajax.ActionLink is clicked, I run the same ajax action once for every scrum card displayed on the page.

As you can see, I have 9 cards displayed and I get 9 identical GET requests. (The action link is actually the color wheel image in the lower right hand side of the card).

SingleCard.cshtml (View) - "ColorPicker" is the name of my action.

<script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")" type="text/javascript"></script>

...

<div class="card_footer" id="card_footer_id_@(Model.ID)">
    <div class="card_tags">
        [Tag1] [Tag2] [Tag3]
    </div>
    <div class="card_colorwheel_icon">
    @Ajax.ImageActionLink("../Content/Images/color_wheel.png", "Color Wheel", "ColorPicker", new { cardid = Model.ID }, new AjaxOptions { UpdateTargetId = "ColorPickerDisplay" })
    </div>
</div>

The ImageActionLink is a helper I'm using, but it works exactly like the normal ActionLink

HomeController.cs (Controller)

    public ActionResult ColorPicker(int cardid)
    {
        var currentcard = db.Cards.Single(x => x.ID == cardid);

        var colors = new List<CardRGB>();
        var cards = db.Cards.ToList();
        foreach (var card in cards)
        {
            colors.Add(new CardRGB 
                {
                    CardId = card.ID,
                    Red = (int)card.BG_Red,
                    Blue = (int)card.BG_Blue,
   开发者_StackOverflow中文版                 Green = (int)card.BG_Green
                });
        }

        // disctint

        var model = new ColorPickerViewModel()
        {
            Colors = colors,
            Red = (int) currentcard.BG_Red,
            Green = (int) currentcard.BG_Green,
            Blue = (int) currentcard.BG_Blue
        };

        return PartialView(model);
    }

Does anyone know why this code is running once per card?

EDIT: As requested!

public static class ImageActionLinkHelper
{
    public static MvcHtmlString ImageActionLink(
        this AjaxHelper helper,
        string imageUrl,
        string altText,
        string actionName,
        object routeValues,
        AjaxOptions ajaxOptions)
        {
            var builder = new TagBuilder("img");
            builder.MergeAttribute("src", imageUrl);
            builder.MergeAttribute("alt", altText);
            builder.MergeAttribute("title", altText);
            var link = helper.ActionLink("[replaceme]", actionName, routeValues, ajaxOptions);
            var html = link.ToHtmlString().Replace("[replaceme]", builder.ToString(TagRenderMode.SelfClosing));
            return new MvcHtmlString(html);
        }
}

Check the HTML of your page. In your singlecard.cshtml there is the line:

    <script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")" type="text/javascript"></script>

For every card again you include the javascript, so it is included 9 times. Therefore 9 requests will be sent to the server.

Solution: put the script-include on page level, not on card level.