"Enhance the appearance of your DropDownList with Bootstrap styling

I recently started learning ASP.NET and have been following the Getting Started with ASP.NET MVC 5 tutorial on the official asp.net website.

While working on my project, I encountered an issue with styling my drop down box using Bootstrap. The code I was using displayed it as a standard drop down, but I couldn't figure out how to apply the desired styling.

Original code:

Genre: @Html.DropDownList("movieGenre", "All")

After making some changes:

@Paul helped me find the solution:

@Html.DropDownList("movieGenre", (SelectList)ViewBag.movieGenre, "Select genre", new { @class = "form-control" })

Appreciate all the assistance provided by everyone.

c#cssasp.netasp.net-mvctwitter-bootstrap

Answer №1

To implement the desired style, make sure to utilize the CSS class form-control. Here's an example:

@Html.DropDownList("movieGenre", "All", new { @class = "form-control"})

Another method to consider is using DropDownListFor, but ensure a model property is explicitly defined:

@Html.DropDownListFor(model => model.MovieGenreModel, SelectList, new { @class = "form-control"})

Credit goes to @Paul for noting this detail.

If necessary, you may need to ADJUST existing HTML control/update overload/constructor by including the following:

public static MvcHtmlString DropDownList(
    this HtmlHelper htmlHelper,
    string name,
    IEnumerable<SelectListItem> selectList,
    string optionLabel,
    object htmlAttributes  //     <--------------- This addition is crucial
)

For further assistance, delve into MVC HTML Helpers and refer to:

  1. StackOverflow: Adding your own HtmlHelper in ASP.NET MVC
  2. Displaying Enums in a dropdownlist on our ASP.NET MVC view
  3. Analyzing how ASP.NET MVC generates the DropDownList Helper
  4. Drop Down Lists with Custom Data Elements
  5. StackOverflow: HtmlAttributes in Extension Method - Bootstrap & MVC 5

An alternative solution could involve exploring TwitterBootstrapMVC

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