Send parameter to action method - c#

At the moment I have this code:
#using (Html.BeginForm("Add", "Review", "Review"))
{
#Html.ValidationSummary(true)
<fieldset>
<legend>Review</legend>
<div class="editor-label">
#Html.LabelFor(model => model.TEKST)
</div>
<div class="editor-field">
#Html.TextBoxFor(model => model.TEKST)
</div>
<p>
<input type="submit" value="Create" />
</p>
</fieldset>
}
This will send me to: localhost:4470/Review/Add?Length=6
The thing that I actually want is this url: localhost:4470/Review/Add?tekst=sdfsdf
How can I modify this code that it will use "tekst" as parameter instead of length? And as value the content of the textbox.
UPDATE:
This are my action methods:
public ActionResult Create()
{
return View();
}
public ActionResult Add(string tekst)
{
ViewBag.test = tekst;
return View();
}
In the View page of Create, I would like to have a form, with a textbox or textarea, that sends an action to Add, the content of the textbox or textarea should be in parameter "tekst" of action method "Add"
SOLUTION:
See the post of CD Smith

I'm not sure what your action looks like but as long as it is accepting your model, you have the value for TEKST in your model..
If you need something different then you're View would need to be different as well, you post a Model from the view, you don't send GET parameters by making a POST
Do you have an action that currently takes TEKST as a parameter?
UPDATE
Ok, looking at your action... you don't need to modify your view, you need to modify your actions, try this this will get you what you want.
Change YourModelTypeHere to match your real model type
[HttpPost]
public ActionResult Create(YourModelTypeHere model)
{
return RedirectToAction("Add", new { tekst = model.tekst });
}
public ActionResult Add(string tekst)
{
ViewBag.test = tekst;
return View();
}
You need to modify your view just a tad - remove the parameters from the BeginForm tag
#using (Html.BeginForm())
So the Create action will render the Create View, then POST back to the Create method that has the [HttpPost] annotation. Then the value of TEKST will be sent as a parameter to the Add method as a RedirectToAction and render the Add view

I'm not sure where the "Length=6" is coming from, as I can't see what part of your code would create that URL...
It sounds to me that you're expecting a GET request, but (by default) a form will result in a POST request. Based on your code, I would expect the generated route to be "localhost:4470/Review/Add". Whatever the contents of the form are will be sent as form data.
So in your controller, if your action method looked like this:
[HttpPost]
[ActionName("Add")]
public ActionResult AddViaPost(string tekst)
{
// do something with tekst
}
Then you should get the value of the text box posted correctly to your controller.

Related

Having a problem redirecting a form post to another view

I have a basic MVC form that allows a user to submit a zip code and after clicking submit, the user should be redirected to a new view. My code seems to redirect to the next action successfully. However after the redirect, the controller returns back to the original action, so to the user, the page next changed at all.
Here's my View code:
#using (Html.BeginForm("PricingQuote", "Home", FormMethod.Post, new { #class = "rd-mailform text-center offset-top-30" }))
{
<div class="form-group">
<label class="form-label" for="contact-zip">Zip Code</label>
<input class="form-control" id="contact-zip" type="text" name="zip" data-constraints="##Required">
</div>
<button class="btn btn-primary offset-top-30" type="submit">GET STARTED</button>
}
Here's the PricingQuote action in my HomeController. This action redirects to the Pricing action in my Pricing controller:
[HttpPost]
public ActionResult PricingQuote(string zipCode)
{
return RedirectToAction("Pricing", "Pricing");
}
Here's my PricingController:
public class PricingController : Controller
{
// GET: Pricing
public ActionResult Pricing()
{
return View();
}
}
So, after clicking GET STARTED, it accesses my Home/PricingQuote action. This action then tries to redirect to the Pricing/Pricing action, which it does however, the code then seems to (incorrectly) return back to Home/PricingQuote and exits the action.
Any idea how I can redirect & display my Pricing view?
Thanks
Pass the controller in as the second parameter:
[HttpPost]
public ActionResult PricingQuote(string zipCode)
{
return RedirectToAction("Pricing", "PricingController");
}
Thanks for your responses. I was able to figure out my problem. The name of the action I was trying to redirect to ("Pricing") was the same name as my controller ("Pricing"). As a test, I renamed my action to "PricingA" & it worked, so apparently based on this, an action cannot be the same name as the controller when attempting a "RedirectToAction", which I was unaware of (at least that's my assumption based on the results I've found).
Unfortunately, I tried googling for some add'l evidence of this, to provide with this answer, but was unable to find any.
This works:
HomeController:
[HttpPost]
public ActionResult PricingQuote(string zipCode)
{
return RedirectToAction("PricingA", "Pricing");
}
Pricing Controller
[HttpGet]
public ActionResult PricingA()
{
return View();
}

how to take input from TextBox and show in view in MVC

I want to show one TextBox. In that if give any input string and button clicked it should so like this
hai , what is ur name
[TextBox]
welcome,ur name is "xyz"
I am new in MVC. Please help me to do this.
View
#{
ViewBag.Title = "MyPage";
}
<h2>Mymethod</h2>
<h3>#ViewBag.Message</h3>
#Html.TextBox("Name")
<form method="post">
<input type="submit" value="Submit" name="btn" />
</form>
HomeController.cs
public ActionResult Mymethod()
{
ViewBag.Message = "Hello what is ur name ??? ";
return View();
}
There are many ways to do this to accomplish what you want. I will provide you with a simplistic approach, please modify and change it to fit in with your scenario.
I would normally recommend using a view model above any other way, for example using a single string value or using FormCollection or ViewBag. They can work but I prefer to use view models.
I answered a question on what view models are and what they are supposed to do, please read it:
What is ViewModel in MVC?
First you will create a view model that will handle your input data, like first name, last name, age, etc. You will then pass this view model through to the view. In your example I will only include name:
public class ViewModel
{
public string Name { get; set; }
}
In your Create action method you will instantiate this view model and pass it to the view. And when you click on the button to submit the form then the post action method will receive this view model as input parameter:
public ActionResult Create()
{
ViewModel model = new ViewModel();
return View(model);
}
[HttpPost]
public ActionResult Create(ViewModel model)
{
if (!ModelState.IsValid)
{
// If validation fails send the view model back to the view and fix any errors
return View(model);
}
// Do what you need to do here if there are no validation errors
// In your example we are posting back to the current view to
// display the welcome message
return View(model);
}
And then finally you view will look like this:
#model Project.Models.ViewModel
#using (Html.BeginForm())
{
#Html.TextBoxFor(m => m.Name)
<button type="submit">Submit</button>
if (!string.IsNullOrWhiteSpace(Model.Name))
{
<p>welcome, your name is #Model.Name</p>
}
}
Please spend some time reading through the many online tutorials on ASP.NET MVC.
Modify your current view to
#using(Html.BeginForm("ControllerName","Mymethod",FormMethod.Post))
{
<input type="submit" value="Submit" name="btn" />
}
Add another action method in your controller like this :
[HttpPost]
public ActionResult Mymethod(FormCollection form)
{
string Name = form["Name"];
Viewbag.Name = Name;
return View()
}
Then add view to this controller and write this into it.
Hi , Your Name is #Viewbag.Name
You should wrap your form in form tag. It is a form after all. So when you click submit, you are submitting the form.
<form method="post">
<h2>Mymethod</h2>
<h3>#ViewBag.Message</h3>
#Html.TextBox("Name")
#if (!String.IsNullOrEmpty(ViewBag.Name))
{
<h3>
welcome,ur name is #ViewBag.Name
</h3>
}
<input type="submit" value="Submit" name="btn" />
</form>
On the controller, you need to add HttpPost handler for your Mymethod action. This is where your web server is accepting the form you've submitted.
[HttpPost]
public ActionResult Mymethod(string name)
{
ViewBag.Message = "Hello what is ur name ???";
ViewBag.Name = name;
return View();
}

get a variable passed to my controller from a textbox

I have a simple model I am using for a search page to do some validation:
public class Search {
[Required]
[DisplayName("Tag Number")]
[RegularExpression("([1-9][0-9]*)", ErrorMessage = "Tag must be a number")]
public int HouseTag { get; set; }
i then have a simple view with a textbox and a submit button:
#model Search
#{
Layout = "~/_Layout.cshtml";
}
#using (Html.BeginForm("Search", "Inquiry", FormMethod.Get)){
#Html.LabelFor(m =>m.HouseTag)
#Html.TextBoxFor(m=>m.HouseTag, new { type = "Search", autofocus = "true", style = "width: 200px", #maxlength = "6" })
<input type="submit" value="Search" id="submit"/>
my controller is expecting a parameter of an id:
[HttpGet]
public ActionResult Search(int id){
ViewBag.Tag = id;
return View();
}
when i execute it with a number i get a null value being passed to the controller, causing things to blow up. I am using the model to control some of the properties of the search box for validation. I used to just have #Html.TextBox and it returned fine, but now that ive added the model, it doesnlt return anything.
You can set your parameter to a type of Search and then access the property in your action
[HttpGet]
public ActionResult Search(Search model){
ViewBag.Tag = model.HouseTag;
return View();
}
If it were me I'd make this a HttpPost or create a seperate action for this form so I wouldn't see the HouseTag text in the URL..
#using (Html.BeginForm("Search", "Inquiry", FormMethod.Post))
{
#Html.LabelFor(m => m.HouseTag)
#Html.TextBoxFor(m => m.HouseTag, new { type = "Search", autofocus = "true", style = "width: 200px", #maxlength = "6" })
<input type="submit" value="Search" id="submit" />
}
[HttpPost]
public ActionResult Search(Search model){
ViewBag.Tag = model.HouseTag;
return View();
}
You are expecting a parameter named id and you are passing HouseTag as the name of that parameter you should rename id to houseTag inside the Search method.
There's a couple of things going on here. First you are going to want to split your Get and Post actions. Also forms are only used in conjunction with POST's. You also don't need to name your action or controller unless you are sending the post to a different controller or action then the GET.
This is the get. It renders the form on the page. You don't need to put [HttpGet] on there, it is the default.
public ActionResult Search()
{
return View();
}
The following is going to post the form back to the server. the model binder will wire up the html form fields with your view model. since you have validators on the view model, you'll want to check that the model state is valid and re-show the view with the associated errors. You will need to add an #Html.ValidationMessageFor(...) into your view so that you actually see those errors.
[HttpPost]
public ActionResult Inquiry(Search search)
{
if (!ModelState.IsValid)
{
return View(search);
}
//so something with your posted model.
}

How to pass a value from TextBox as parameter to Action

This is what I've had in mind but of course it doesn't work.
#{
var textBoxData = form.find('input[name="textboxList"]').val();
}
<input type="button" value="Add" title="Add" onclick="location.href='#Url.Action("Create_Add", "Controller", new { textboxList = textBoxData })'" />
How should I pass this? Controller action name and parameter are correct. Just that I don't know how to get the value entered in textbox...
I have trouble with saving a form within a form, so someone suggested this solution. Proxy code would be:
<firstForm>
textboxfor Name
dropdownfor DType
If DTypeDDL value is "List" then
<secondForm>
textboxfor nameOfItem
submitSecondForm (using that method i mentioned above)
</secondForm>
End If
submitFirstForm
</firstForm>
I've been trying to save 2 forms for quite a while now but no luck. This is basically my last resort.
First of all, you should go with a viewmodel oriented html file since you are using MVC (Model, View, Controller):
Create a viewModel:
public class ExampleViewModel
{
public ExampleViewModel()
{
}
public virtual string TextBoxData { get; set; }
}
After, code your html using the viewmodel as model:
#model Models.Views.ExampleViewModel
#using (Html.BeginForm())
{
<div class="editor-row">
<div class="editor-label">
#Html.LabelFor(model => model.TextBoxData)
</div>
<div class="editor-field">
#Html.EditorFor(model => model.TextBoxData)
</div>
</div>
<input type="submit" value="submit" />
}
and your controller:
public ActionResult Example()
{
ExampleViewModel model = new ExampleViewModel();
return This.View(model);
}
[HttpPost]
public ActionResult Example(ExampleViewModel model)
{
string infoEntered = model.TextBoxData;
// Do something with infoEntered
}
Hope this will help you!
If you're using view models, check out this answer: MVC sending data from View to Controller
If you're only interested in sending the data from an input to the action method without view models, you can do that as well:
View:
#using (Html.BeginForm("Edit", "Some", FormMethod.Post))
{
<input type="text" id="myTextBox" name="myTextBox" />
<input type="submit" value="Submit" />
}
Notice the BeginForm line. The first parameter is the Action I want the data to go to, which I named Edit. The next parameter is the Controller I am using, which I named SomeController. You don't add the Controller bit to the name when you're referencing the Controller in BeginForm. The third parameter is telling the form to use the POST method when sending the data to the server.
Controller:
public class SomeController
{
[HttpPost]
public ActionResult Edit(string myTextBox)
{
// Do what you want with your data here.
}
}
If you added more inputs (again, without a view model here), you can add them as parameters to the Edit method. This isn't really the preferred method, though. Look into using a view model. ScottGu has a nice blog post on doing what you need, using view models:
http://weblogs.asp.net/scottgu/archive/2007/12/09/asp-net-mvc-framework-part-4-handling-form-edit-and-post-scenarios.aspx

Performing search in Asp.net MVC

I am new to Asp.net MVC and have no idea as to how can i perform the search. Here's my requirement, please tell me how will you handle this :-
I need to have textbox where user can enter a search query or string. The user then clicks on a button or presses enter to submit it. The string needs to matched with a table's property name.
NOTE:- Querying the data and fetching the result isn't the main point here. All I need to know is how will you take the user input and pass it to a controller action or whatever for further processing. Just tell me how will you read the user input and where will you send it to search.
Asp.Net MVC uses standard HTTP verbs. For the html part, it's a normal html form that points to an url. Server side, that url will be routed to a controller/action which will handle the input and do what is needed.
Let's have a sample. You want to make a search form. First of all, it's a best practice to have search forms use the HTTP GET method instead of POST, so the search results can be bookmarked, linked, indexed, etc. I won't be using Html.BeginForm helper method to make things more clear.
<form method="get" action="#Url.Action("MyAction", "MyController")">
<label for="search">Search</label>
<input type="text" name="search" id="search" />
<button type="submit">Perform search</button>
</form>
That's all the html you need. Now you'll have a controller called "MyController" and the method will be something like this:
[HttpGet]
public ActionResult MyAction(string search)
{
//do whatever you need with the parameter,
//like using it as parameter in Linq to Entities or Linq to Sql, etc.
//Suppose your search result will be put in variable "result".
ViewData.Model = result;
return View();
}
Now the view called "MyAction" will be rendered, and the Model of that view will be your "result". Then you'll display it as you wish.
As always in an ASP.NET MVC application you start by defining a view model which will express the structure and requirements of your view. So far you have talked about a form containing a search input:
public class SearchViewModel
{
[DisplayName("search query *")]
[Required]
public string Query { get; set; }
}
then you write a controller:
public class HomeController : Controller
{
public ActionResult Index()
{
return View(new SearchViewModel());
}
[HttpPost]
public ActionResult Index(SearchViewModel model)
{
if (!ModelState.IsValid)
{
// There was a validation error => redisplay the view so
// that the user can fix it
return View(model);
}
// At this stage we know that the model is valid. The model.Query
// property will contain whatever value the user entered in the input
// So here you could search your datastore and return the results
// You haven't explained under what form you need the results so
// depending on that you could add other property to the view model
// which will store those results and populate it here
return View(model);
}
}
and finally a view:
#model SearchViewModel
#using (Html.BeginForm())
{
#Html.LabelFor(x => x.Query)
#Html.EditorFor(x => x.Query)
#Html.ValidationMessageFor(x => x.Query)
<button type="submit">Search</button>
}
This is the best way to do it.
Create a ViewModel
public class SearchViewModel
{
public string Query { get; set; }
}
Create a Controller
public class SearchController : Controller
{
[HttpPost]
public ActionResult Search(SearchViewModel model)
{
// perform search based on model.Query
// return a View with your Data.
}
}
Create the View
// in your view
#using (Html.BeginForm("Search", "SearchController"))
{
#Html.TextBox("Query")
<input type="submit" value="search" />
}
hope this helps

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