how to send a dropdown value to controller in mvc5

Mark Tabor

7y18.7k.NET

As i have my view in razor and it is strongly type view so without using dropdownlistfor it is not getting the value and shows 0 all the time on post.

so i need to use dropdownlistFor

@Html.DropDownList("Designation_Id", new SelectList(ViewBag.Designation, "Designation_Id", "Designation_Text"), "Please select", new { @id = "ddlDesignation", @class = "btn form-text" })

how can i write the above state for dROPDOWNLISTFOR or can i send the value of dropdown using dropdownlist to the controller as my controller is taking an object class like below kindly assits me

9 Replies

Know the answer? Post it — somebody with the same question will find it here.

Sonu Gupta7y ago
Hi,

Visit the following links for your solution -

https://www.aspdotnet-suresh.com/2016/10/aspnet-mvc-get-dropdownlist-selected-value-in-razor-example.html

https://www.aspsnippets.com/Articles/ASPNet-MVC-Pass-Send-DropDownList-Selected-Value-to-Controller-using-HtmlActionLink.aspx
0
Junaid Shahid7y ago
class Registration {
pubic int DesignationId {get;set;}

}

@Html.DropDownList("DesignationId ", new SelectList(ViewBag.Designation, "Designation_Id", "Designation_Text"), "Please select", new { @id = "ddlDesignation", @class = "btn form-text" })

Name should be match with property Name.
0
Mark Tabor7y ago
thanks for all of you who tried to help me out ! my question was about i was using dropdownlist control instead of dropdownlistFor so in my razor view i have strongly typed view my dropdown are bounded correctly but they are sending 0 value all the time because i need to use dropdownlistFor instead of dropdownlist. so i asked the overloaded version of dropdownlistFor which uses all those parameters which i was using for dropdownlist .

I found the correct overload,

@Html.DropDownList("Designation_Id", new SelectList(ViewBag.Designation, "Designation_Id", "Designation_Text"), "Please select", new { @id = "ddlDesignation", @class = "btn form-text" })

instead of Designation_ID i put model=>model.Designation , Now it is getting the correct value but when submitting the for i am getting this error message as shown below.

0
Bidyasagar Mishra7y ago
Hi Mark,
I am not getting your point properly
0
Jignesh Kumar7y ago
Hi Mark, Create properties for dropdown in your model and bind from model. https://stackoverflow.com/questions/12734782/mvc-net-create-drop-down-list-from-model-collection-in-strongly-typed-view
0
Bidyasagar Mishra7y ago
Hi Mark, please follow the code
Model:
public class FruitModel
{
    public List Fruits { get; set; }
    public int? FruitId { get; set; }
    public int? Quantity { get; set; }
}
Controller
public class HomeController : Controller
{
    // GET: Home
    public ActionResult Index()
    {
        FruitModel fruit = new FruitModel();
        fruit.Fruits = PopulateFruits();
        return View(fruit);
    }

    [HttpPost]
    public ActionResult Index(FruitModel fruit)
    {
        fruit.Fruits = PopulateFruits();
        var selectedItem = fruit.Fruits.Find(p => p.Value == fruit.FruitId.ToString());
        if (selectedItem != null)
        {
            selectedItem.Selected = true;
            ViewBag.Message = "Fruit: " + selectedItem.Text;
            ViewBag.Message += "\\nQuantity: " + fruit.Quantity;
        }

        return View(fruit);
    }

    private static List PopulateFruits()
    {
        List items = new List();
        string constr = ConfigurationManager.ConnectionStrings["Constring"].ConnectionString;
        using (SqlConnection con = new SqlConnection(constr))
        {
            string query = " SELECT FruitName, FruitId FROM Fruits";
            using (SqlCommand cmd = new SqlCommand(query))
            {
                cmd.Connection = con;
                con.Open();
                using (SqlDataReader sdr = cmd.ExecuteReader())
                {
                    while (sdr.Read())
                    {
                        items.Add(new SelectListItem
                        {
                            Text = sdr["FruitName"].ToString(),
                            Value = sdr["FruitId"].ToString()
                        });
                    }
                }
                con.Close();
            }
        }

        return items;
    }
}
View
@model DropDownListFor_MVC.Models.FruitModel

@{
    Layout = null;
}

>

<html>
<head>
    <meta name="viewport" content="width=device-width"/>
    <title>Indextitle>
    <style type="text/css">
        body {
            font-family: Arial;
            font-size: 10pt;
        }
    style>
head>
<body>
    @using (Html.BeginForm("Index", "Home", FormMethod.Post))
    {
        <table>
            <tr>
                <td>
                    Fruit:
                td>
                <td>
                    @Html.DropDownListFor(m => m.FruitId, Model.Fruits, "Please select")
                td>
            tr>
            <tr>
                <td>
                    Quantity:
                td>
                <td>
                    @Html.TextBoxFor(m => m.Quantity)
                td>
            tr>
            <tr>
                <td>td>
                <td>
                    <input type="submit" value="Submit"/>
                td>
            tr>
        table>
    }
    @if (ViewBag.Message != null)
    {
        <script type="text/javascript">
            window.onload = function () {
                alert("@ViewBag.Message");
            };
        script>
    }
body>
html>
0
Mark Tabor7y ago
Hi Sagar Malde thanks for the reponse basically i am not having I wrote a method in my controller to get the records of designation from database so i would like to use all these parameters as i am using for dropdown. i need to use all same as for dropdownlistfor

@Html.DropDownList("Designation_Id", new SelectList(ViewBag.Designation, "Designation_Id", "Designation_Text"), "Please select", new { @id = "ddlDesignation", @class = "btn form-text" })
0
Sagar Malde7y ago
Hi Mark,

Assuming your view model Registration
public class Registration
{
     public sting Name {get; set; }
     public int Designation_id {get; set;} //Here you will get the selected dropdown value.

     public List designations {get; set; } //Your list of designations

    public IEnumerable designationList
     {
            get { return new SelectList(designations , "Designation_id", "Designation_name"); }
     }  //To bind the dropdownlistfor element in view.
}
Now add following in your view inside begin form
@Html.DropDownListFor(m => m.Designation_id, Model.designationList, new { @class = "form-control" })
This will give you selected dropdown list's value in your submit action result.
+1
Chittaranjan Swain7y ago
Hi Mark,

Refer below links,

https://stackoverflow.com/questions/27901175/how-to-get-dropdownlist-selectedvalue-in-controller-in-mvc
https://www.aspsnippets.com/Articles/ASPNet-MVC-Pass-Send-DropDownList-Selected-Text-and-Selected-Value-to-Controller-from-View.aspx
https://www.codeproject.com/Questions/168561/Pass-Dropdownlist-Selected-Value-In-MVC-From-View
+1