Tips for arranging a drop-down list in alphabetical order

Looking to create my own website using C#, I'm currently working on sorting a list of names obtained from the database in alphabetical order (A - Z).

Check out this jsfiddle for an example and the JavaScript function I've written to populate a dropdown list with the list of people.

function loadResponsable() {
    const url = document.getElementById("responsables").value;
    document.getElementById("AssignDiv").style.display = "block";

    $.ajax({
        url: url,
        type: "POST",
        dataType: "json",
        success: function(data) {
            const responsables = document.getElementById("ticketRespInput");

            for (let idx in data) {
                if (data.hasOwnProperty(idx)) {
                    const option = document.createElement("option");
                    option.innerHTML = data[idx];
                    option.value = idx;
                    responsables.options.add(option);
                }
            }
        }
    });
};
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">

<div class="form-group" name="asignar" id="AssignDiv">
                                    <label class="required-field" name="asignar" id="lblAssignDiv" for="ticketRespInput">Asignado a:</label>
                                    <select onchange="validate(this)" id="ticketRespInput" name="assigned" class="form-control form-control-user validateable" style="width: 100%; padding: 0.375rem 0.75rem; height: 50px;" tabindex="-1" aria-hidden="true">
                                        <option value="" disabled selected>Sin asignar</option>
                                    </select>                                  
                                </div>

UPDATE:

Added some server-side code that fetches responsible users based on user groups.

[HttpPost]
        public JsonResult LoadResponsables()
        {
            var groups = new List<string>();

            if (string.Equals(Session["tipo"].ToString(), "super") ||
                string.Equals(Session["tipo"].ToString(), "admin"))
                groups.AddRange(LdapGroupModel.GetAllLdapGoups().LdapGroupsList
                    .Select(ldapGroup => ldapGroup.LdapGroupsId));
            else
                groups.AddRange(LdapGroupModel.GetLdapGroupsFromArea(Session["area"].ToString()).LdapGroupFromArea
                    .Select(ldapGroup => ldapGroup.LdapGroupsId));

            return Json(LdapController.GetUsersByGroup(groups));
        }

Error:

https://i.sstatic.net/POzzH.png

Answer №1

When retrieving data from a database using SQL or no-SQL syntax, you have the option to sort in either ascending or descending order. In Javascript, you can also use the sort() function to sort the array 'data'.

data.sort()

Make sure to include this line before beginning the for loop.

Answer №2

If you're looking to achieve this, there are a few methods you can explore. One approach is to utilize the Sort() function on the server-side. Instead of

return Json(LdapController.GetUsersByGroup(groups));

You might consider:

return Json(LdapController.GetUsersByGroup(groups.Sort()));

However, I prefer delving into the LdapGroupModel.GetAllLdapGoups() method and identifying the primary query responsible for generating your list, implementing the sorting there. My preference is to sort data as close to its source as possible. Either option should suffice!

UPDATE:

Apologies for the confusion. Please attempt the following:

groups.Sort();
return Json(LdapController.GetUsersByGroup(groups));

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