c# - Specific ListBox value always selected -

i using listboxfor user can select multiple values ,a user wants should 1 value selected ex:

listbox contains: id   category 1    2    b 3    c 4    d 5    general

here general category should selected , user should not able change selected value listbox.

@html.listboxfor(model => model.selectedcategory, viewbag.listcategories multiselectlist, new { })

i using asp.net mvc 5

actually can rare scenario,one approach can use use jquery.if has solution in mvc helpers plz tell me other wise using jquery.

try using jquery

  $(document).ready(function () {        $('#selectedcategory').find('option[value="5"]').attr('selected','selected');   });

this works fine.

Braziel