Reusing Controller Action based on ViewModel - asp.net-mvc

I will have a registration form on my website which will firstly show the boardrules / legal. Once accepted it will then show the main registration form. Using a ViewModel as below:
public class MyViewModel
{
public int Readrules { get; set; }
public int Coppa { get; set; }
}
public ActionResult Register(MyViewModel model)
{
... at this stage model.Readrules and model.Coppa will contain the values passed
as query string parameters tat you could use here
}
The idea is if I go to /register it will show the rules and then /register?readrules=1 it will then show the registration form. This is how it was done in PHP but now I am migrating to ASP.NET..
What is the best way of doing this? Can I redirect to the same action and just parse the value of model.ReadRules or must I use more than one action? I would prefer to keep this in one action and just check if model.ReadRules == 1 and either display the boardrules or registration form.
Thanks

Instead of re-using the Register action, you could have different controller actions for displaying the rules, registering and processing the registration, like so:
Controller Actions:
public ActionResult BoardRules()
{
return View();
}
public ActionResult Register(MyViewModel model)
{
if (model.ReadRules != 1)
return RedirectToAction("BoardRules");
return View();
}
public ActionResult Registration(MyViewModel model)
{
if (model.ReadRules != 1)
return RedirectToAction("BoardRules");
//Process the registration
return View();
}
Views:
BoardRules.cshtml:
#* HTML Displaying Rules *#
Accept Rules
Register.cshtml:
#using (Html.BeginForm("Registration", "[Controller Name]", new { ReadRules = 1 }))
{
#* Form Fields *#
<input type="submit" value="Process Registration" />
}
Registration.cshtml
<h2>Congratz on Registering!</h2>

public ActionResult Register()
{
return View("boardrules"); //Default
}
public ActionResult Register(MyViewModel model)
{
if (model.ReadRules == 1)
{
model.ReadRules++; //Next time it won't be 1 but step 2
return View("registration",model);
}
else
{
//Do IF or Case for other step
}
return View("boardrules"); //Default
}

Related

How to go to some controllers method from another?

I have this controller:
public class HomeController : Controller
{
public ActionResult Index()
{
return View();
}
public PartialViewResult SearchData(DataClass dc)
{
//Some logic
return PartialView(data);
}
public ActionResult Search(DataClass dc)
{
//Some logic
return View(dc);
}
[HttpGet]
public ActionResult Info(string edrpou)
{
//Some logic
return View(dc);
}
[HttpPost]
public ActionResult Info(DataClass dc)
{
// ???
return View("Search", dc);
}
}
In view Search.cshtml I have some forms like
#Html.TextBoxFor(x => x.Param, new { #class = "form-control", #id = "textBox" })
to create query string and <input type="submit" /> to confirm. Then I show some info from db and create link
#Html.ActionLink((string)Model.Rows[i]["NAME"], "Info", "Home", new { edrpou = (string)Model.Rows[i]["EDRPOU"] }, null)
after pressing it redirected to view Info.cshtml. In result I get /Home/ResultInfo?edrpou=41057472 page with some info and forms like in Search
After pressing confirm button in Info reference still /Home/ResultInfo?edrpou=41057472 but I expect to use logic from Search after pressing that button.
P.S. PartialViewResult triggered in Search and it exactly what I need by pressing confirm button in Info
Thank you for help!
Looks like you need RedirectToAction:
[HttpPost]
public ActionResult Info(DataClass dc)
{
// some specific logic, if any
return RedirectToAction("Search");
}
And because you need to move around the DataClass object, you could also use TempData:
[HttpPost]
public ActionResult Info(DataClass dc)
{
// some specific logic, if any
TempData['data'] = dc; //of course 'data' is not a good name, use something more specific
return RedirectToAction("Search");
}
public ActionResult Search(DataClass dc)
{
if (dc == null && TempData.ContainsKey('data'))
dc = (DataClass)TempData['data'];
//Some logic
return View(dc);
}
Alternatively you could just call Search directly, but that's not as nice, because it won't redirect user to the correct route: it will appear as though user is still on "info" page while in reality they are already on "search".

How To call An Action In Umbraco Controller?

I created an Umbraco DocumentType with the alias Personal and created a controller that inherits
Umbraco.Web.Mvc.RenderMvcController
I added two Actions, one is the default action and the other is called Test.
How can I fire the Test Action from the Personal controller?
public class PersonalController : Umbraco.Web.Mvc.RenderMvcController
{
// GET: Personal
public override ActionResult Index(RenderModel model)
{
return base.Index(model);
}
public String Test(RenderModel model)
{
return "fff";
}
}
When I put the url like this: localHost/personal/test it shows:
No umbraco document matches the url '/test'.
Which is right, so how can I call it?
I would do it like this
[HttpPost]
public ActionResult SubmitSearchForm(SearchViewModel model)
{
if (ModelState.IsValid)
{
if (!string.IsNullOrEmpty(model.SearchTerm))
{
model.SearchTerm = model.SearchTerm;
model.SearchGroups = GetSearchGroups(model);
model.SearchResults = _searchHelper.GetSearchResults(model, Request.Form.AllKeys);
}
return RenderSearchResults(model.SearchResults);
}
return null;
}
public ActionResult RenderSearchResults(SearchResultsModel model)
{
return PartialView(PartialViewPath("_SearchResults"), model);
}
See this blog post for the full context behind where this code snippet came from.
http://www.codeshare.co.uk/blog/how-to-search-by-document-type-and-property-in-umbraco/

Redirect to same view

I am working on a ASP.NET MVC website and I am new to this.
I have a controller with few actions. I want to use these actions through out my website.
For example
[HttpPost]
public ActionResult MyAction(ViewModel model)
{
if (ModelState.IsValid)
{
//code is here
}
return RedirectToAction(); // redirect to same view
}
I want to redirect to same view from where request is generated. I am not sure if this is possible or not ?
Based on your comment, I would create a Controller that looks like:
public MyController : Controller
{
private ActionResult SharedMethod(SomeModel model)
{
if (ModelState.IsValid)
{
//code is here
}
// viewname is required, otherwise the view name used will be
// the original calling method (ie public1.cshtml, public2.cshtml)
return this.View("SharedViewName");
}
public ActionResult Public1(SomeModel model)
{
return this.SharedMethod(model);
}
public ActionResult Public1(SomeModel model)
{
return this.SharedMethod(model);
}
}

Issue with multiple views on single view

I have create one simple page in MVC, which is given in startup project of MVC by .net framework with slight modification in that.
I have created two models
Login
Register
Create two controllers.
LoginController
RegisterController.
Then i have use both of them to display in my home page (like facebook just an example)
Model code:
Login Model:
public class Login
{
private string email;
[Required]
public string Email
{
get { return email; }
set { email = value; }
}
private string password;
[Required]
public string Password
{
get { return password; }
set { password = value; }
}
}
Register Model
public class Register
{
private string email;
[Required]
public string Email
{
get { return email; }
set { email = value; }
}
private string password;
[Required]
public string Password
{
get { return password; }
set { password = value; }
}
private string name;
[Required]
public string Name
{
get { return name; }
set { name = value; }
}
}
View of Login and Register both is created using "Create" Option.
Both contains
<input type="submit" value="Create" />
Now, both views are on my other page, home page.
#Html.Action("Index", "Login")
#Html.Action("Index", "Register")
Both display okay, but when i click on any of the "create" button of any of the view, it also gets fire the event in controller for the other one.
My controller code....Logincontroller.
public ActionResult Index()
{
return View();
}
[HttpPost]
public ActionResult Index(Login lgobj)
{
System.Threading.Thread.Sleep(2000);
string email = lgobj.Email;
string password = lgobj.Password;
return View();
}
RegisterController:
[HttpGet]
public ActionResult Index()
{
return View();
}
[HttpPost]
public ActionResult Index(Register model)
{
return View();
}
Can anyone please specify the reason, or what is missing in my code?
If not clear, please let me know, i will be describe more.
Try changing your Home View to this:
#using (Html.BeginForm())
{
#Html.Action("Index", "Login")
}
#using (Html.BeginForm())
{
#Html.Action("Index", "Register")
}
What I think is happening is that your submit is calling a POST to the wrong controller, as there is no distinct difference of forms.
Ok so you have a page (a View) that displays two ActionLinks. Once clicked, these two ActionLinks brings you to the LoginController or the RegisterController (depending on the link you’ve clicked). In both cases, you end up inside the Index() ActionResult of the appropriate Controller…so far so good!
Now…once inside the Index() you simply call return View() but I don’t see any code showing that these Views are strongly typed! Try the following:
LoginController:
public ActionResult Index()
{
var model = new Login();
return View(model);
}
RegisterController:
public ActionResult Index()
{
var model = new Register();
return View(model);
}
Assuming you’ve created two strongly typed views (Index.cshtml inside the Login folder and Index.cshtml inside the Register folder) make sure each view has an appropriate form and a submit button.
Little change to what mentioned by #Shark,
We need to mention the action and controller to which indivisual form will post data, If we will not specify both the form will post to the page url.
#using (Html.BeginForm("Index","Login"))
{
#Html.Action("Index", "Login")
}
#using (Html.BeginForm("Index","Register"))
{
#Html.Action("Index", "Register")
}
In this scenario, ( as commented in my first answer)
We need to use a Dynamic view page. (More Information)
Follow following steps:
Create DynamicViewPage type:
public class DynamicViewPage : ViewPage
{
public new dynamic Model { get; private set; }
protected override void SetViewData(ViewDataDictionary viewData)
{
base.SetViewData(viewData);
Model = ViewData.Model;
}
}
Your Controller will look like
public ActionResult Account(string returnUrl)
{
LoginModel loginmodel = null;//Initialize Model;
RegistrationModel registrationModel = null ;//Initialize Model;
.
.
.
.
.
return View("Account", new
{
Login = loginmodel,
Register = registrationModel
});
your View should Inherit from
Inherits="DynamicViewPage"
Now #Model.Login will give you Loginmodel
#Model.Register will give you RegisterModel
It should work as you expected.........

How to render a model property of string type as checkbox in ASP.NET MVC

I want to display a string type as checkbox on MVC view, but returns it as string type on HTTP post. The problem is that it returns false on HTTP Post. Below is my code:
View:
#model List<Car>
foreach(var car in Model){
bool isFourWheel = false;
if(bool.TryParse(car.IsFourWheel, out isFourWheel){
#Html.CheckBox("IsFourWheel", isFourWheel); //need to be rendered as checkbox, but returns string type on HTTP POST
}
}
Model:
public class Car
{
public string IsFourWheel { get; set; } //bad naming, but it can contain any type, include boolean
}
Controller:
public ActionResult Index()
{
var cars = new List<Car>(){ new Car(){IsFourWheel = "true"},new Car(){IsFourWheel = "false"} };
return View(cars);
}
[HttpPost]
public ActionResult Index(List<Car> cars) **Problem IsFourWheel is false when true is selected **
{
return View(cars);
}
Any ideal would be very much appreciated.
You can try specifying a template name in your helper:
#Html.EditorFor(car => car.IsFourWheel, "CheckBox")
And defining the template to render the data the way you want, in either ~/Views/{YourControllerName}/EditorTemplates/CheckBox.cshtml or ~/Views/Shared/EditorTemplates/CheckBox.cshtml.
You can find a whole series of post by Brad Wilson on MVC templates here:
Brad Wilson: ASP.NET MVC 2 Templates, Part 1: Introduction
It is for MVC 2, but most concepts still apply to MVC 3 as well (save for the Razor syntax).
Update:
Actually you probably don't need a custom template for this. Try using #Html.CheckBoxFor(car => car.IsFourWheel) instead.
Update 2:
Drop the following template in ~/Views/Shared/EditorTemplates:
IsFourWheel.cshtml
#functions {
private bool IsChecked() {
if (ViewData.Model == null) return false;
return Convert.ToBoolean(ViewData.Model, System.Globalization.CultureInfo.InvariantCulture);
}
}
#Html.CheckBox("", IsChecked(), new { #class = "check-box" })
Then from your view, call it like so:
#Html.EditorFor(model => model.IsFourWheel, "IsFourWheel")
I tested it and binding works in both GET and POST scenarios.
You could alter your viewmodel like this:
public class Car
{
public string IsFourWheel { get; set; }
public bool IsFourWheelBool { get { return bool.Parse(IsFourWheel); } }
}
Your view would look like this:
#Html.EditFor(x => x.IsFourWheelBool);
I think it will be easier, if you add an Id to your model. Just like this
Model:
public class Car
{
public int CarID { get; set; }
public string IsFourWheel { get; set; }
}
View:
#model IEnumerable<Car>
foreach (var car in Model)
{
if(car.IsFourWheel == "true"){
<input type="checkbox" name="carID" value="#car.CarID" checked="checked" />
}
else
{
<input type="checkbox" name="carID" value="#car.CarID" />
}
}
Controller:
[HttpPost]
public ActionResult Index(List<int> carID)
{
//handle selected cars here
return View();
}

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