MvvmCross Failed to create target binding for EditingDidBegin on iPhone

Question

I have an application that binds to EditingDidBegin. It works fine on iPhone Simulator (iOS 7), but when working on a real iPhone, I get the following warning message:

MvxBind: Warning: 1.29 Failed to create target binding for EditingDidBegin

Binding code for controls:

var set = this.CreateBindingSet<InventoryBalanceView, InventoryBalanceViewModel>();
set.Bind(StoreroomLabel).To(vm => vm.StoreRoomCaption);
set.Bind(StoreroomTextField).To(vm => vm.StoreRoom);
set.Bind(ItemNumberLabel).To(vm => vm.ItemNumberCaption);
set.Bind(ItemNumberTextField).To(vm => vm.ItemNumber);
set.Bind(BinNumberLabel).To(vm => vm.BinNumberCaption);
set.Bind(BinNumberTextField).To(vm => vm.BinNumber);
set.Bind(QuantityLabel).To(vm => vm.QuantityCaption);
set.Bind(QuantityTextField).To(vm => vm.Quantity);
set.Bind(SubmitButton).To(vm => vm.SetFocusCommand);
set.Bind(DeleteButton).To(vm => vm.DeleteCommand);
      set.Bind(NavigationItem.RightBarButtonItem).To(vm => vm.ScanStoreRoomCommand);
set.Bind(DeleteButton).For(b => b.Hidden).To(vm => vm.IsDeleteButtonHidden);

set.Bind(SubmitButton).For("Title").To(vm => vm.SubmitButtonTitle);
set.Bind(DeleteButton).For("Title").To(vm => vm.DeleteButtonTitle);

set.Bind(StoreroomTextField).For("EditingDidBegin").To(vm =>  vm.SetFocusCommand).CommandParameter("StoreRoom");
set.Bind(ItemNumberTextField).For("EditingDidBegin").To(vm => vm.SetFocusCommand).CommandParameter("ItemNumber");
set.Bind(BinNumberTextField).For("EditingDidBegin").To(vm => vm.SetFocusCommand).CommandParameter("BinNumber");
set.Bind(QuantityTextField).For("EditingDidBegin").To(vm => vm.SetFocusCommand).CommandParameter("Quantity");

set.Apply();

I changed the project settings to link all the assemblies, but this did not seem to affect the problem.

Any idea what is wrong with my code, or how to fix the problem?

Thanks for your help!

Answer 1

- " " - , .

" " "LinkerPleaseIgnore.cs" ( ), .

. https://github.com/slodge/NPlus1DaysOfMvvmCross/blob/master/N-38-Maps/Mappit.Touch/LinkerPleaseInclude.cs , :

    public void Include(UITextField textField)
    {
        textField.Text = textField.Text + "";
        textField.EditingChanged += (sender, args) => { textField.Text = ""; };
        textField.EditingDidBegin += (sender, args) => { textField.Text = ""; };
        textField.EditingDidBegin -= (sender, args) => { textField.Text = ""; };
    }

, , textField.EditingDidBegin