In this article I will explain with an example, how to pass (send) Model data to another Action method with data using QueryString Parameters in ASP.Net Core (.Net Core) MVC.
Note: For beginners in ASP.Net Core (.Net Core 7), please refer my article ASP.Net Core 7: Hello World Tutorial with Sample Program example.
 
 

Model

The Model class consists of following properties.
public class PersonModel
{
    ///<summary>
    /// Gets or sets PersonId.
    ///</summary>
    public int PersonId { get; set; }
 
    ///<summary>
    /// Gets or sets Name.
    ///</summary>
    public string Name { get; set; }
 
    ///<summary>
    /// Gets or sets Gender.
    ///</summary>
    public string Gender { get; set; }
 
    ///<summary>
    /// Gets or sets City.
    ///</summary>
    public string City { get; set; }
}
 
 

Controllers

Source Controller

The Controller consists of following Action methods.

Action method for handling GET operation

Inside this Action method, simply the View is returned.
 

Action method for handling POST operation

This Action method handles the Form Submission when the Submit Button is clicked.
Note: For more details on Form Submission in Core, please refer my article ASP.Net Core: Form Submit (Post) Example.
 
When the Submit Button is clicked, an object of PersonModel class is initialized and its properties are set.
Finally, the PersonModel class object is passed to the RedirectToAction method along with the name of the destination Controller and its Action method.
public class HomeController : Controller
{
    public IActionResult Index()
    {
        return View();
    }
 
    [HttpPost]
    public IActionResult Send()
    {
        PersonModel person = new PersonModel
        {
            PersonId = 1,
            Name = "Mudassar Khan",
            Gender = "Male",
            City = "Mumbai"
        };
 
        //Send Model object in QueryString to another Controller.
        return RedirectToAction("Index", "PersonDetails", person);
    }
}
 

Destination Controller

The Controller consists of the following Action method.

Action method for handling GET operation

This Action method accepts the PersonModel class object as parameter which finally returned to the View.
Note: The Model class object values are sent using QueryString parameters in the URL.
           For more details on QueryString parameter in MVC, please refer Using Request.QueryString in ASP.Net Core.
 
public class PersonDetailsController : Controller
{
    public IActionResult Index(PersonModel person)
    {
        return View(person);
    }
}
 
 

Views

Source View

HTML Markup

The View consists of an HTML Form which has been created using the following TagHelpers attributes.
asp-action – Name of the Action. In this case the name is Index.
asp-controller – Name of the Controller. In this case the name is Home.
method – It specifies the Form Method i.e. GET or POST. In this case it will be set to POST.
The Form consists of a Submit button, which when clicked the Form is submitted.
@addTagHelper*, Microsoft.AspNetCore.Mvc.TagHelpers
@{
    Layout = null;
}
 
<!DOCTYPE html>
 
<html>
<head>
    <meta name="viewport" content="width=device-width"/>
    <title>Index</title>
</head>
<body>
    <form method="post" asp-controller="Home" asp-action="Send">
        <input type="submit" value="Send" />
    </form>
</body>
</html>
 

Destination View

HTML Markup

Inside the View, in the very first line the PersonModel class is declared as Model for the View.
The View consists of an HTML Table which is used for displaying the values of the properties of PersonModel class.
@model Pass_Data_QueryString_Core.Models.PersonModel
@{
    Layout = null;
}
 
<!DOCTYPE html>
 
<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
</head>
<body>
    <table cellpadding="0" cellspacing="0">
        <tr>
            <th colspan="2" align="center">Person Details</th>
        </tr>
        <tr>
            <td>PersonId: </td>
            <td>@Model.PersonId</td>
        </tr>
        <tr>
            <td>Name: </td>
            <td>@Model.Name</td>
        </tr>
        <tr>
            <td>Gender: </td>
            <td>@Model.Gender</td>
        </tr>
        <tr>
            <td>City: </td>
            <td>@Model.City</td>
        </tr>
    </table>
</body>
</html>
 
 

Screenshot

ASP.Net Core: Pass (Send) Model data using QueryString Parameters
 
 

Downloads

Download Code