string array to be separated with comma - asp.net-mvc-3

Question

I had a string array which I want it to be returned in view separated by comma.
#Html.DisplayFor(m => name.studentName) <span>, </span>}
I'm using this way but the last string will ended with a comma also. Wondering how to avoid this?

Answer 1

I assume that you have a collection of students on your model each possessing a studentName property that you want to display:
public IEnumerable<Student> Students { get; set; }
And inside your view you are looping through this collection and displaying each student name individually.
Now instead of looping you could do the following:
#Html.Raw(
string.Join(
"<span>,<span>",
Model.Students.Select(x => Html.Encode(x.studentName))
)
)
or even better, externalize this logic into a reusable custom HTML helper:
public static class HtmlExtensions
{
public static IHtmlString FormatStudentNames(this HtmlHelper htmlHelper, IEnumerable<Student> students)
{
return new HtmlString(
string.Join(
"<span>,<span>",
students.Select(x => Html.Encode(x.studentName))
)
);
}
}
and then inside your view simply call this helper:
#Html.FormatStudentNames(Model.Students)
You no longer need to write any foreach or whatever loops you are writing.

Answer 2

Try
#string.Join(",", name.studentName);
And have a look at string.Join on MSDN.

Answer 3

$(".category").change(function () {
var value = $(this).val();
loadSubCategory(value)
});
function loadSubCategory(parentID) {
var $el = $("#SubCats");
$el.prop("disabled", true);
$el.empty();
$.ajax({
cache: false,
url: "/Category/loadSubCategory?id=" + parentID,
success: function (data) {
if (data != '' && data != null) {
if (data != 'error') {
var sch = JSON.parse(data);
if (sch.length > 0) {
$el.prop("disabled", false);
for (i = 0; i < sch.length; i++) {
$el.append($("<option></option>")
.attr("value", sch[i].ID).text(sch[i].Description));
}
}
}
}
}
});
}
public ActionResult loadSubCategory(string id)
{
string list = "";
try
{
list = Newtonsoft.Json.JsonConvert.SerializeObject(menu.SubCategory(id));
}
catch (Exception ex)
{
}
return Content(list);
}
public List<CategoryModel> SubCategory(string parentID){
List<CategoryModel> listCategory= new List<CategoryModel>();
string[] yourValues = parentID.Split(',');
foreach (var item in yourValues)
{
var Category = UowObj.CategoryRepository.Get(filter: c => c.ParentId.ToString() == item && c.IsActive == true).ToList();
if (Category != null)
{
var category= new CategoryModel();
foreach (var itemq in Category)
{
category.ID = itemq.ID;
category.Description = itemq.Description;
}
listCategory.Add(merchant);
}
}