How to pass Enum from view to model ASP.Net MVC

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广开言路
广开言路 2020-12-15 13:01

the controller code looks like

public class EmployeeController : Controller
{
    public enum EmployeeType
    {
        RecruitmentOffice,
        ResearchI         


        
4条回答
  •  一整个雨季
    2020-12-15 13:45

    This is also pretty cool:

    [Flags]
    public enum PersonRole { User, Student, Instructor };
    

    then from your razor view:

    and in your javascript:

    function onclickDeleteRole(role) {
        var personId = $('#SelectedPersonId').val();
    
        $.ajax({
            url: window.getUrl('Person/DeletePersonRole'),
            type: 'POST',
            dataType: 'json',
            data: {
                personId: personId,
                roles: role
            },
            success: function (json) {
                alert('success!')
            },
            error: function (jqXHR, status, error) {
                alert('error')
            }
        });
    }
    

    and your controller action:

    public JsonResult DeletePersonRole(int personId, PersonRoleEnum roles)
    {
        // do business logic here...
        // roles will now have value PersonRoleEnum.User|PersonRoleEnum.Student
        // and you can use roles.HasFlag(PersonRoleEnum.User) to check if that flag is set
    
        return Json(new {Result = "OK"});
    }
    

    EDIT: for readability, you can always use strings in javascript, and MVC will parse those for you, e.g.

    $.ajax({
            url: window.getUrl('Person/DeletePersonRole'),
            type: 'POST',
            dataType: 'json',
            data: {
                personId: 1,
                roles: 'Student'
            },
            success: function (json) {
                alert('success!')
            },
            error: function (jqXHR, status, error) {
                alert('error')
            }
        });
    

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