MVC3 ActionLink with search function

Question

I want to make search function through the link.

Currently, I have search box in home page. It is working the search box.

However, I don't know how to pass the some parameters to Search method in controller.

When I put like this coding, searchString is 'null' in controller.

How can I get serachString parameter through actionLink?

Could you help me? Maybe it looks easy. Please help me or advice me. Thanks.

//mac.cshtml

<h3>CPU Processor</h3>
<ul>
    <li>@Html.ActionLink("Intel Core i5", "Search", "Store", new { @searchString = "i5"})</li>
    <li>@Html.ActionLink("Intel Core i7", "Search", "Store", new { @searchString = "i7" })</li>
</ul>

//Search method in StoreController
public ActionResult Search(string searchString)
    {

        var product = from a in _db.Product.Include(a => a.Category)
                      select a;
        if (!String.IsNullOrEmpty(searchString))
        {
            product = product.Where(a => a.model.ToUpper().Contains(searchString.ToUpper())
                               || a.Category.name.ToUpper().Contains(searchString.ToUpper()));
        }
        return View(product.ToList());
    }

score 1 · Accepted Answer · answered Apr 12 '12 at 15:55

You don't use the right overload for Html.ActionLink

see

http://msdn.microsoft.com/en-us/library/system.web.mvc.html.linkextensions.actionlink.aspx

you should do

@Html.ActionLink("Intel Core i7", "Search", "Store", new { @searchString = "i7" }, null)

it's often confusing with "object" as parameters.

By the way, this method is dangerous (get parameters), and the ToUpper method won't work if you are in linq2entities

MVC3 ActionLink with search function

1 Answers1