Different Ways to Pass Form Data into a Controller in .NET MVC

In this blog post we will learn about four different methods for passing form data to a controller in .NET MVC. It includes a sample code for each method and a brief explanation of how it works. This post is useful for developers who are new to .NET MVC and want to learn how to handle form data.

    • Pass form data from view to controller using FormCollection:

    With this option, the form data is passed to the controller action method as a `FormCollection` object. The `FormCollection` object provides access to the form field values using their names as keys. Controller code:
    [HttpPost]
    public ActionResult SubmitForm(FormCollection form)
    {
        string firstName = form["FirstName"];
        string lastName = form["LastName"];
        // ...
        return View();
    }
    
    View code:
    @using (Html.BeginForm("SubmitForm", "MyController", FormMethod.Post))
    {
        
        @Html.TextBox("FirstName")
    
        
        @Html.TextBox("LastName")
    
        
    }
    

    • Pass form data from view to controller Using parameters:

    With this option, the form data is passed to the controller action method as individual parameters. The parameter names must match the names of the form fields. Controller code:
    [HttpPost]
    public ActionResult SubmitForm(string FirstName, string LastName)
    {
        // ...
        return View();
    }
    
    View code:
    @using (Html.BeginForm("SubmitForm", "MyController", FormMethod.Post))
    {
        
        @Html.TextBox("FirstName")
    
        
        @Html.TextBox("LastName")
    
        
    }
    

    • Pass form data from view to controller Using a model:

    With this option, the form data is passed to the controller action method as an instance of a model class. The model class defines properties that match the names of the form fields. Controller code:
    [HttpPost]
    public ActionResult SubmitForm(MyModel model)
    {
        string firstName = model.FirstName;
        string lastName = model.LastName;
        // ...
        return View();
    }
    
    Model code:
    public class MyModel
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }
        // ...
    }
    
    View code:
    @model MyNamespace.MyModel
    
    @using (Html.BeginForm("SubmitForm", "MyController", FormMethod.Post))
    {
        
        @Html.TextBoxFor(m => m.FirstName)
    
        
        @Html.TextBoxFor(m => m.LastName)
    
        
    }
    

    • Pass form data from view to controller Using jQuery AJAX:

    With this option, the form data is submitted to the controller action method asynchronously using jQuery AJAX. The form data is serialized into a JSON object and sent to the server. Controller code:
    [HttpPost]
    public ActionResult SubmitForm(MyModel model)
    {
        string firstName = model.FirstName;
        string lastName = model.LastName;
        // ...
        return Json(new { success = true });
    }
    
    Model code:
    public class MyModel
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }
        // ...
    }
    
    View code:
    @model MyNamespace.MyModel
    
    @using (Html.BeginForm("SubmitForm", "MyController", FormMethod.Post, new { id = "myForm" }))
    {
        
        @Html.TextBoxFor(m => m.FirstName)
    
        
        @Html.TextBoxFor(m => m.LastName)
    
        
    }
    
    JavaScript code:
    $('#myForm').submit(function (e) {
        e.preventDefault();
        $.ajax({
            url: $(this).attr('action'),
            type: $(this).attr('method'),
            data: $(this).serialize(),
            success: function (result) {
                // handle success response
            },
            error: function () {
                // handle error response
            }
        });
    });
    
 
Best quality Asp .Net Ajax Control Toolkit tutorials.

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