problem with dropdownlist

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I have student name dropdownlist Suppose I want to select name from dropdown if I click on add button after that selected name display as it is please help me I am using mvc with Razor.

<select  id="studentId" name="studentName" class="form-control" onchange="changestudent();">
                            <option value="0">select</option>
                           @{
              List<string> studentnames = student.DataLayer.Models.student.getAllstudentName();

                                  foreach (string studenttname in studentnames)
                                  {
                                      <option value="@studentname" >@studentname</option>
                                  }
                            }
                       </select></string>

Posted 25-Sep-14 23:21pm

Member 9027346

Updated 26-Sep-14 2:53am

sankarsan parida

v3

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[no name] 26-Sep-14 5:24am

you can do that in jquery, javascript, how do you want that

2 solutions

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Arora_Ankit · Answer 1 · 2014-09-26T00:46:00

you can use strongly typed view and return the model from the btn click post event.

for example:-

C#

[HttpPost]
public ActionResult Save(Student sdtudentModel)
{
//To your work
return View(studentModel)
}

Then in View you can use the code to bind the dropdown List

HTML

@Html.DropDownListFor(model => model.StudentID, Model.StudentsList)

StudentID will be the property that will store the selected Value
StudentIDList will be IEnumerable<SelectListItem> that will store all the dropdown values.
Both of these will the properties in your Model.

By this dropdown will retain value on postback(till the returned model has value for StudentID)

Arora_Ankit · Answer 2 · 2014-09-26T18:56:00

Solution 2

If you are using for loop to bind the options then in changestudent() call a webmethod to save the selected value in ViewBag and use ViewBag to show the value selected.

Posted 26-Sep-14 18:56pm

Arora_Ankit