When I load the default page (http://localhost/MVCP/Home/index) it loads correctly, whereas when I load another view (http://localhost/MVCP/Home/Create) it doesn't load. How can I fix this?
My Create action in HomeController:
[HttpGet] [ActionName("Create")] public void Create() { }
Q: Do you have an action in your HomeController called Create?
A: Yes, [HttpGet] [ActionName("Create")] public void Create() { }
Your action return value is void and probably you even didn't write anything in response. change the signature of action to have an ActionResult as return a View.
public ActionResult Create()
{
return View();
}
To learn more:
Adding a View
in Getting Started with ASP.NET MVC 5 Series.
May be there is no view you have created so far and it seems your controller are inside area folder so have u checked your routeing too.
I think your Action should return ActionResult or ViewResult but certainly not "void" as you have written currently.
and also you should write
return view();
in Create action
Related
I am thinking about a scenario rather similar to this question asked some time ago: How to call another controller Action From a controller in Mvc
In the scenario I am thinking of, controller B would however return a partial view that I would like to incorporate into the ViewResult returned by the Home controller, so the code might look like this:
public class Home
{
public ActionResult Index()
{
ActionResult partialViewFromCtrl_B = RedirectToAction(actionName: "SomeAction",
controllerName: "Controller_B");
// The returned view should include the partial view `partialViewFromCtrl_B`
return View();
}
}
public class Controller_B
{
public ActionResult SomeAction()
{
// Do some stuff
return PartialView(viewName: "_SomeAction", model: someModel);
}
}
Is there a way to combine the partial view returned from controller B into the view returned from the Home controller?
If possible, I would like to keep the logic and the views defined for controller B separate from the Home controller rather than merging everything into the Home controller.
Your help is very much appreciated!
Edit:
One possible solution to my scenario might by if the Index.cshtml of the Home controller looks like this
#model SomeModelType
...
#Html.Partial(partialview: "~/Controller_B/_SomeAction", model: Model)
...
and the Index() action of the Home controller would look like this:
public ActionResult Index()
{
// Get the model from Controller_B instead of the partial view
SomeModelType someModelFromCtrl_B = new Controller_B().returnSomeModel();
return View(someModelFromCtrl_B);
}
This however does not seem to be the best approach to take here for me.
So if possible I would like to combine the partial view Controller_B/_SomeAction and the Index view of the Home controller in the action method of the Home controller if that is possible.
Through the code posted I can not understand what you want to return.
based on your little code I think you intend to return Index values in PartialView.
Take a look at the code below:
public class Home
{
public ActionResult Index()
{
if(//cond){
// Do some stuff
return PartialView(viewName: "_SomeAction", model: someModel);
}
else{
ActionResult partialViewFromCtrl_B = RedirectToAction(actionName: "SomeAction",
controllerName: "Controller_B");
// The returned view should include the partial view `partialViewFromCtrl_B`
return View("Index");
}
}
}
I return the View from my controller start_run1 to a view start_run1
public ActionResult start_run1(int? id) { ....
return(View);
}
I get 404 page not found, even if I try using absolute paths etc etc.
if I add the code it finds the page but model data or ViewBag data doesn't get passed.
public IActionResult start_run1()
{
return View();
}
I have another similar controller function which works without doing this.
Any ideas, Ive tried everything.
I'm having a real problem trying to articulate this seemly simple problem.
I have a single view that contains a FORM with a few search fields at the top of the view and the results of that search get shown on the same view after submitting the form.
I have a single HTTPGET controller method that takes the form fields as parameters and IF it was submitted by a user it will pass the model back to the view with the results to be shown and pre-populate the search form with what they filled out.
How can I tell if the page was loaded with default parameters vs. someone actually submitted the form.
What's the best way to accomplish this?
If I am understanding your question correctly then I think you need to consider the HttpGet attribute:
https://msdn.microsoft.com/en-us/library/system.web.mvc.httpgetattribute(v=vs.118).aspx
and the HttpPost attribute:
https://msdn.microsoft.com/en-us/library/system.web.mvc.httppostattribute(v=vs.118).aspx
Lets say you have a create method. The Http method would look like this:
[HttpGet]
public ActionResult Create()
{
}
and the post method would look like this:
[HttpPost]
public ActionResult Create(Person p)
{
//Logic to insert p into database. Could call an application service/repository to do this
}
RedirectToAction solve the problem.
you can go back to the get method after submited data and populate the view with default values
[HttpGet]
public ActionResult Create()
{
// fill model to default data
return view(model);
}
[HttpPost]
public ActionResult Create(Person p)
{
//do your stuff save data
return RedirectToAction("Create");
}
or
[HttpPost]
public ActionResult Create(Person p)
{
if(...)
{
//do your stuff any logic
return RedirectToAction("Create");
}
//do your stuff
return view(...);
}
From one controller I want to take user to another page in the app so I say something like:
return RedirectToAction("Index","ThatPage");
And I checked and both ThatPageController and Index do exist.
But it takes the browser to the URL: http://thatpage/
What is going on?
The overload for RedirectToAction where you want to go to another controller and a method within that controller has two separate strings as parameters.
You would want to write:
return RedirectToAction("Index", "Home");
You're missing a " mark in the method signature.
This example when user closes a session
public async Task<ActionResult> Logout()
{
return RedirectToAction("Index", "App");
}
where APP is the controller and Index is the action where I have within the App controller
Appcontroller:
in App controller I have this
public IActionResult Index()
{
return View();
}
My controller has 2 actions:
Results()
Index()
I want to share the view named index.aspx between these 2 actions.
See my previous post for more information
When I build my link to the page, I assume I cannot send it to Index action as it is expecting a FormCollection type and hence I create a Results action
public ActionResult Results(ClientSearch data, int? page)
{
FormCollection collection = new FormCollection();
collection.Add("FNAme", data.FName);
collection.Add("Lane", data.Lane);
collection.Add("Zip", data.Zip);
collection.Add("Phone", data.Phone);
return Index(page, collection);
}
Not sure I completely understand your question, but if you want to use the same View on different ActionResults, you can:
public ActionResult One() {
// do stuff
return View("Index", myModel);
}
public ActionResult Two() {
// do stuff
return View("Index", myOtherModel); // Same View
}
Just make sure you are providing the same Type for the View (if the View needs a Type at all).
Of course you can. It's up to controller to decide how to react and what view to serve back.
Now that I've read your question to the end :)), well, you can get away with two actions of the same name. The one will be accepting GET commands (initial load of the page), the other will be serving POST requests, perform the necessary action and redirect back to the same View.
public MyController
{
[AcceptVerbs (HttpVerbs.Get)]
public ActionResult Index ()
{
return View ();
}
[AcceptVerbs (HttpVerbs.Post)]
public ActionResult Index (ClientSearch data, int? page)
{
// Process form post
return RedirectToAction ("Index");
}
}