如何在RedirectToAction中傳遞參數？

Question

我正在使用MVC asp.net。

這是我的控制器操作：

public ActionResult ingredientEdit(int id) { 
    ProductFormulation productFormulation = db.ProductFormulation.Single(m => m.ID == id); 
    return View(productFormulation); 
} 

// 
// POST: /Admin/Edit/5 

[HttpPost] 
public ActionResult ingredientEdit(ProductFormulation productFormulation) { 
    productFormulation.CreatedBy = "Admin"; 
    productFormulation.CreatedOn = DateTime.Now; 
    productFormulation.ModifiedBy = "Admin"; 
    productFormulation.ModifiedOn = DateTime.Now; 
    productFormulation.IsDeleted = false; 
    productFormulation.UserIP = Request.ServerVariables["REMOTE_ADDR"]; 
    if (ModelState.IsValid) { 
     db.ProductFormulation.Attach(productFormulation); 
     db.ObjectStateManager.ChangeObjectState(productFormulation, EntityState.Modified); 
     db.SaveChanges(); 
     **return RedirectToAction("ingredientIndex");** 
    } 
    return View(productFormulation); 
} 

我想通過id來ingredientIndex行動。我怎樣才能做到這一點？

我想使用此ID public ActionResult ingredientEdit（int id）它來自另一頁。其實我沒有id在第二個動作，請建議我該怎麼做。

Answer 1

爲什麼不這樣做？

return RedirectToAction("ingredientIndex?Id=" + id); 

Answer 2

return RedirectToAction("IngredientIndex", new { id = id }); 

更新

首先，我會重新命名IngredientIndex和IngredientEdit只指數和編輯，並放置在IngredientsController，而不是AdminController，你可以有一個名爲管理員，如果您想要的區域。

// 
// GET: /Admin/Ingredients/Edit/5 

public ActionResult Edit(int id) 
{ 
    // Pass content to view. 
    return View(yourObjectOrViewModel); 
} 

// 
// POST: /Admin/Ingredients/Edit/5 

[HttpPost] 
public ActionResult Edit(int id, ProductFormulation productFormulation) 
{ 
    if(ModelState.IsValid()) { 
     // Do stuff here, like saving to database. 
     return RedirectToAction("Index", new { id = id }); 
    } 

    // Not valid, show content again. 
    return View(yourObjectOrViewModel) 
} 

Answer 3

試試這個方法：

return RedirectToAction("IngredientIndex", new { id = productFormulation.id });