如何@ Url.Action通過查詢字符串值MVC4

Question

我通過在_Layout.cshtml頁面查詢字符串值

<li>@Html.ActionLink("Contact", "Contact", "Home")</li> 
<li>@Html.ActionLink("Shopping", "Index1", new { controller = "Shopping", UserID = "Admin" })</li> 

如何通過在瀏覽Index1.cshtml頁值

<a href="@Url.Action("Delete","Shopping", new { id = Request.QueryString["UserID"] })"> 
<img alt="removeitem" style="vertical-align: middle;" height="17px" src="~/Images/remove.png" title="remove" /> 
</a> 

我不會在我的控制器獲取查詢字符串值

public ActionResult Delete() 
{ 
    string id = Request.QueryString["UserID"]; 
    int records = DeleteItem(id); 
    if (records > 0) 
    { 
     return RedirectToAction("Index", "Shopping"); 
    } 
    else 
    { 
     ModelState.AddModelError("", "Can Not Delete"); 
     return View("Index"); 
    } 
} 

public int DeleteItem(string id) 
{ 
    con.Open();   
    SqlCommand cmd = new SqlCommand("delete from Cpecial_Shopping_Cart_tbl where [User ID]='" + id + "'", con);   
    return cmd.ExecuteNonQuery(); 
} 

Answer 1

你需要一個名爲ID爲您的刪除操作方法的參數

Public ActionResult Delete(string id){ 
    //delete the Request.QueryString line 
}