Failed to deserialize viewModel encrypted values

[MichalOberreiter]

Hi, when trying to set object property with childs (and at least one child property is set to SignData) with static command then the viewModel cant be deserialize after postback:

• for testing, at first click on "static" button, then on "postback" button

Html:

    <dot:Button Text="static" Click="{staticCommand: Selected = xxx.ViewModels.TestViewModel.Set() }"></dot:Button>

    <dot:Button Text="postback" Click="{command: Postback()}"></dot:Button>

C#:

   public A Selected { get; set; } = new A();


      [AllowStaticCommand]
      public static A Set()
      {
          return new A()
          {
              Id = "2",
              Name = "Name of A",
              Bs = new List<B>()
              {
                  new B(){
                  Id = "22",
                  Name = "Name of B"
                  }
              }
          };
      }

      public void Postback()
      {

      }


      public class A
      {
          [Protect(ProtectMode.SignData)]
          public string Id { get; set; }
          public string Name { get; set; }
          public List<B> Bs { get; set; } = new List<B>();
      }

      public class B
      {
          [Protect(ProtectMode.SignData)]
          public string Id { get; set; }
          public string Name { get; set; }

      }

[exyi]

I'm sorry, but encrypted/signed values don't work with static commands, and I don't see a reasonable way to make it work.

We should however produce a more reasonable error, probably disallow the assignment if the object contains anything marked with the Protect attribute

[MichalOberreiter]

Ok, understand. It's necessary produce error? I would expect that signed properties will not be just assigned. My situation:

• I have grid where items have signed Id property.
• I want to create infobox of focused row item somewhere in page
• so I would like to on rowclick just assign item to some property in viewmodel to show selected data in infobox
• and i dont want to make classic postback, because i have all data already on client and want them just show in different place in page

[exyi]

But then the deserialization is not possible, since the signed part of an object is missing.

You could work around this by having a property with selected row index, instead of the selected row. Or by adding Bind(ServerToClientFirstRequest) on the SelectedRow property.