About HTML Helper [Answered]RSS

• • Reply
  sakuradata

  Member

  1 Points

  65 Posts

  About HTML Helper

  Aug 22, 2017 02:18 PM|sakuradata|LINK

                          <div>
  
                              @{
                                  List<SelectListItem> listItems = new List<SelectListItem>();
  
                                  string test = "test";
                                  string test2 = "test2";
  
                                  listItems.Add(new SelectListItem()
                                  {
                                      Value = test,
                                      Text = test,
                                      Selected = test == item.Test ? true : false
                                  });
  
                                  listItems.Add(new SelectListItem()
                                  {
                                      Value = test2,
                                      Text = test2,
                                      Selected = test2 == item.test2 ? true : false
                                  });
                              }
  
                              @Html.DropDownList("Status", listItems, "Select Item")
  
                          </div>
  						

  Question:
  Is it possibly to do it with HTML helper in relation to ASP.net MVC instead of having the code above?

  I tried finding a solution to it but it doesn't work.

  Thank you!

• • Reply
  A2H

  All-Star

  50741 Points

  9877 Posts

  Re: About HTML Helper

  Aug 22, 2017 03:37 PM|A2H|LINK

  sakuradata

  Is it possibly to do it with HTML helper in relation to ASP.net MVC instead of having the code above?

  You can try below implementation

  Create a folder called Helpers and then create a file called "DropdownlistHelper.cs"

  Add the below code to class file we created now

  public static class DropdownlistExtensions
      {
          public static MvcHtmlString CustomDropdownlist(this HtmlHelper helper, string name,string itemselected)
          {
              List<SelectListItem> listItems = new List<SelectListItem>();
  
              string test = "test";
              string test2 = "test2";
  
              listItems.Add(new SelectListItem()
              {
                  Value = test,
                  Text = test,
                  Selected = test == itemselected ? true : false
              });
  
              listItems.Add(new SelectListItem()
              {
                  Value = test2,
                  Text = test2,
                  Selected = test2 == itemselected ? true : false
              });
  
              return System.Web.Mvc.Html.SelectExtensions.DropDownList(helper, name, listItems);
  
          }
  
      }

  Now in your view first import the namespace.

  @using WebApplication1.Helpers

  Please note above namespace is as per my webapplication, you have to change this as per your application

  Then you can use the helper like below

  @Html.CustomDropdownlist("YourDropdowlistName","YourSelectedItemValue")

  Sample Usage

  @Html.CustomDropdownlist("Dropdowlist1","test2")

  Refrence: https://docs.microsoft.com/en-us/aspnet/mvc/overview/older-versions-1/views/creating-custom-html-helpers-cs
  
  

  Thanks,
  Aje
  My Blog | Dotnet Funda