将模型属性传递给Html.ActionLink

Question

Edit: I found the answer, but it meant abandoning the use of HtmlActionlink in favor of doing this (the "blah" parameters from my original post now being subbed in for what I actually needed):

<a href="@Url.Action("LinkedDetails", 
                     new 
                         { 
                           controller = "LGDetails", 
                           findByString = item.AccounNumber
                         })">@item.LastName</a>

This does exactly what I want. Trying to accomplish the same thing with HtmlActionLink results in one error or another no matter what I tried:

@Html.ActionLink(item.LastName, 
                 "../LGDetails/LinkedDetails", 
                 new 
                    { 
                      controller = "LinkedDetails", 
                      findByString = item.AccounNumber 
                    }) 

result: Value cannot be null or empty. Parameter name: linkText

Trying like this:

@Html.ActionLink(Model.LastName  .....

Result:

System.Collections.Generic.IEnumerable' does not contain a definition for 'LastName' and no extension method 'LastName' accepting a first argument of type 'System.Collections.Generic.IEnumerable' could be found (are you missing a using directive or an assembly reference?)

etc etc. Always one of those errors regardless.

And yes, I tried every single thing suggested here, and an equal number of other things found elsewhere (which is how I found the answer I did use, it was posted by another person having the same problem).

---

Despite a lot of searching, I can't seem to figure out how to do what seems like it should be basic.

This works fine:

@Html.DisplayFor(modelItem => item.LastName)

But I want to display the LastName field as the linked text inside an Html.ActionLink like this:

@Html.ActionLink(item.LastName, "blah", "blah")

But nothing works. Doing it like the above gives me a compilation error:

The type arguments for method 'System.Web.Mvc.Html.DisplayExtensions.DisplayFor(System.Web.Mvc.HtmlHelper, System.Linq.Expressions.Expression>)' cannot be inferred from the usage. Try specifying the type arguments explicitly

I've tried it like this:

@Html.ActionLink(@Html.DisplayFor(modelItem => item.LastName), "blah", "blah")

and other variations thereof where it is nested. That doesn't work either (won't compile) with the error "no overload method for actionlink.."

I feel like this should be simple. Yes, I'm very new to C# and MVC.

Answer 1

you need to use this overload of Html.ActionLink :

@Html.ActionLink(string LinkText,string ActionName,string ControllerName)

do like this:

@Html.ActionLink(Model.LastName, "ActionName","ControllerName")

Updated:

then do like this, as your Model is IEnumerable:

@foreach(var item in Model)
{

@Html.ActionLink(item.LastName, "ActionName","ControllerName")

}

If Model is Single like this:

@model MyCompany.LGCustData

then it should be lke this:

@Html.ActionLink(Model.LastName, "ActionName","ControllerName")

Answer 2

@Html.ActionLink(@Model.AccounNumber....)可以防止有人像我一样出现在这里。

Answer 3

this is a breaf description of how you should use an actionlink

Html.ActionLink("link title", 
                "ActionMethod",  
                 "ControllerName",  
                    null, // <-- Route arguments.
                    null  // <-- htmlArguments
)

try something like this:

@Html.DisplayFor(Model.LastName, "actionMethod","controllerName",new{Model.LastName});

*if the case you want to add some parameters to your route, following the standard convention:

/controller/action/parameter

otherwise

@Html.DisplayFor(Model.LastName, "actionMethod","controllerName");

Answer 4

For me I simply convert the "dynamic text" before in a string with String.Format() function like this

<ul>
@foreach (var user in ViewBag.users )
{
    string complete_name = String.Format("{0} {1}", user.Firstname, user.Lastname);
    <li>@Html.ActionLink(complete_name, "Details", new { Id = user.Id })</li>
}
</ul>

On my computer it works very fine.

Answer 5

只需使用

@Html.ActionLink(Html.DisplayNameFor(model => model.LastName).ToHtmlString(), "blah", "blah")