Checkbox not set in ASP.NET MVC 3

Question

I'm trying to initialize my checkbox in controller like the code below, but in the view it's not selected whether it's true or false

controller :

 foreach (var item in AssignedUsers)
 {
     if (dc.App_UserTasks.Any(u => u.UserId == item.UserId && u.TaskId == ProjectTask.Id))
        {
            Users.Single(u => u.Id == item.Id).IsChecked = true;
        }
     else
        {
             Users.Single(u => u.Id == item.Id).IsChecked = false;
        }
  }

view:

 @for (int i = 0; i < Model.Responsibles.Count; i++)
    {
         @Html.CheckBoxFor(u => u.Responsibles[i].IsChecked)            
    }

send model from controller to view :

 var EPT = new EditProjectTaskModel
            {
                ProjectId = ProjectTask.ProjectId,
                Title = ProjectTask.Title,
                ProjectName = ProjectTask.App_Project.ProjectName,
                Id = ProjectTask.Id,
                Description = ProjectTask.Description,
                EstimatedTime = ProjectTask.EstimatedTime,
                Status = ProjectTask.Status,
                Responsibles = Users.ToList()
            };
            return PartialView("_EditProjectTask", EPT);

Shyju · Accepted Answer · 2012-05-21 20:32:28Z

1

Assuming your User ViewModel looks like this

public class UserViewModel 
{
  public string Name { set;get;}
  public int UserId { set;get;}
  public bool IsSelected { set;get;}
}

And you have your main view model has a collection of this UserViewModel

public class EditProjectTaskModel 
{
  public List<UserViewModel > Responsibles { set; get; }

  public EditProjectTaskModel()
  {
    if(this.Responsibles ==null)
       this.Responsibles =new List<UserViewModel >();
  }
}

Create an editor template called Responsibles.cshtml with the below content

@model YourNameSpace.UserViewModel 
@Html.CheckBoxFor(x => x.IsSelected)
@Html.LabelFor(x => x.IsSelected, Model.Name)
@Html.HiddenFor(x => x.UserId)

Now include that in your main view like this, instead of the loop

@model EditProjectTaskModel
@using (Html.BeginForm())
{
  //other elements
 @Html.EditorFor(m=>m.Responsibles)
 <input type="submit" value="Save" />
}

If you want to get the selected checkboxes on a form submit.

[HttpPost]
public ActionResult Save(EditProjectTaskModel model)
{
  List<int> userIDs=new List<int>();
   foreach (UserViewModel user in model.Responsibles)
   {
     if (user.IsSelected)
     {
       //you can get the selected user id's here
       userIDs.Add(user.UserId);    
     }
   } 
}

edited May 21, 2012 at 20:32

answered May 21, 2012 at 19:00

Shyju

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2 Comments

Rafay Over a year ago

foreach (UserViewModel user in model.Responsibles)

Shyju Over a year ago

@3nigma : Thanks 3nigma. Fixed that.

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