In MVC we have EnumDropDownListFor which we can directly bind with our any enum, it is very similar to DropDownListFor. In this article we will try to create an enum and use it into our model and see how we can bind and save it into the database. As we know we cannot keep space in the name of emum members so how we can use a clear text into dropdown than the enum members. It is easy we will use Data Annotation Attribute to achieve the clear text to show. If you will search on net, there are many people will suggest you to create your own helper but it is available in our MVC project and we don't need to write a single line of code, we can directly use it like other TextBoxFor, DropDownListFor...
Let's create a very simple enum called "ProgrammingLanguages", I will use mixed names, means having single word as well as having more than one words, create an enum
public enum ProgrammingLanguages
{
[Display(Name = "ASP.NET")]
ASPNet,
[Display(Name = "C# .NET")]
CSharp,
[Display(Name = "Java")]
Java,
[Display(Name = "Objective C")]
ObjectiveC,
[Display(Name = "Visual Basic .NET")]
VBNet,
[Display(Name = "Visual DataFlex")]
VisualDataFlex,
[Display(Name = "Visual Fortran")]
VisualFortran,
[Display(Name = "Visual FoxPro")]
VisualFoxPro,
[Display(Name = "Visual J++")]
VisualJPlus
}
Note: I used DataAnnotations Display Name, to show the text in dropdown.
Now create a simple StudentModel by using the above enum, I don't want to complicate it so will not use any validation attribute but we can use it as usual. Let's create our model
public class Student
{
[Key]
public String StudentId { get; set; }
[Display(Name="Student Name")]
public String Student { get; set; }
[Display(Name = "Languages")]
public ProgrammingLanguages Language { get; set; }
[Display(Name = "Student Address")]
public String Address { get; set; }
[Display(Name = "City")]
public String City { get; set; }
}
Point to focus: I used the enum "ProgrammingLanguages" as the data type for our property "Language", that's it for now. Create action methods for get and post the data say "Student" in home controller to test.
[HttpGet]
public ActionResult Student()
{
var model = new Student();
return View(model);
}
[HttpPost]
public ActionResult Student(Student model)
{
var db = new LearningContext();
db.Students.Add(model);
db.SaveChanges();
return View(model);
}
There is nothing in above code, I try to write one httpGet action method and other for httpPost to save the record. In post method simply I amd saving the data into database.
I created the view by using the wizard and and it created the code for me, see only for the EnumDropDownListFor section:
<div class="form-group">
@Html.LabelFor(model => model.Languages, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EnumDropDownListFor(model => model.Languages, htmlAttributes: new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.Languages, "", new { @class = "text-danger" })
</div>
</div>
It is very similar to the other TextBoxFor code, if it does not clear then let me remove all the label, error, html and CSS Decoration code and it will look like this:
@Html.EnumDropDownListFor(model => model.Languages)
If still you cannot understand then I cannot help you any more :)
Here is the running code and output image:
Here is the list of overloaded version, which one fit best for you, you can use that.
Here is the complete html code of the page:
@model MyProject.Models.Student
@{
ViewBag.Title = "Student";
Layout = "~/Views/Shared/_Layout.cshtml";
}
<h2>Student</h2>
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
<div class="form-horizontal">
<h4>Student</h4>
<hr />
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="form-group">
@Html.LabelFor(model => model.StudentId,
htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.StudentId,
new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.StudentId, "",
new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.StudentName,
htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.StudentName,
new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.StudentName, "",
new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Languages,
htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EnumDropDownListFor(model => model.Languages,
htmlAttributes: new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.Languages, "",
new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Address,
htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Address,
new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Address, "",
new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.City,
htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.City,
new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.City, "",
new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Create" class="btn btn-default" />
</div>
</div>
</div>
}
<div>
@Html.ActionLink("Back to List", "Index")
</div>
@section Scripts {
@Scripts.Render("~/bundles/jqueryval")
}
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Having 13+ years of experience in Microsoft Technologies (C#, ASP.Net, MVC and SQL Server). Worked with Metaoption LLC, for more than 9 years and still with the same company. Always ready to learn new technologies and tricks.
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