I have a lot of experience with ASP.NET MVC 1-5. Now I learn ASP.NET Core MVC and have to pass a parameter to link in page. For example I have the following Action
[HttpGet]
public ActionResult GetProduct(string id)
{
ViewBag.CaseId = id;
return View();
}
How can I implement the link for this action using tag helpers?
<a asp-controller="Product" asp-action="GetProduct">ProductName</a>
You can use the attribute prefix asp-route- to prefix your route variable names.
Example:
<a asp-controller="Product" asp-action="GetProduct" asp-route-id="10"> ProductName</a>
asp-route-yourParamName, for example: asp-route-foo="bar"
<a href="/Product/GetProduct/10">ProductName</a>. Question: While using anchor tag helper how can we get the parameter value (e.g. 10) using jquery? `
<a asp-route-id="@item.Id" data-id="@item.Id" /> and then get the id with $('a').attr('data-id') :)
You might want to apply the following syntax.
<a asp-controller="Member"
asp-action="Edit"
asp-route-level="3"
asp-route-type="full"
asp-route-id="12">Click me</a>
That will produce the call route like this.
/Member/Edit/3/full/12
Then you can receive it in the method as shown below.
[Route({level}/{type}/{id})]
public IActionResult Edit(int level, string type, int id) { ... }
Although, the attribute decorating the method isn't required in MVC, it shows more clearly how to bind the attributes from the link to the passed in parameters in the method.
/Member/Edit/3/full/12 it generates /Member/Edit/3?type=full&id=12
if you want to put variable id into link in grid or table something below code can be used
[HttpGet]
[Route("/Product/GetProduct/{id}")]
public ActionResult GetProduct(string id)
{
ViewBag.CaseId = id;
return View();
}
<a asp-controller="Product" asp-action="GetProduct" asp-route-id="@item.id" >ProductName</a>
On the back-end:
This code must write at the top of the action in the controller
[Route("/Controller/Method/{Object or varible name}")]
public actionresult method name(your variable)
{
//your code...
}
On the front-end:
@{
var url = "/Controller/Method/" + your data;
<a href="@url"> click me for send data()</a>
}
