MvxTabsFragment Failed to create target binding for binding Command for

Question

I\'m trying to create an MvxTabsFragmentActivity and bind a button on a fragment to a command. The problem I\'m getting is the following error.

MvxB         


        

Answer 1

I don't think this has anything to do with Fragments

Standard Buttons in Android don't have Command properties - they have Click events.

They also don't have CommandParameter properties - but MvvmCross provides a CommandParameter converter to allow you to do bindings like:

local:MvxBind="Click CommandParameter(VMCommandName, VMCommandParameterName)"

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If you want to add Command and CommandParameter to a MyButton this can be done quite easily:

public class MyButton : Button {
    public MyButton(Context c, IAttributeSet a) : base (c, a) {
        Click += (s,e) => {
           if (Command == null) return;
           if (!Command.CanExecute(CommandParameter)) return;
           Command.Execute(CommandParameter);
        }
    }
    public ICommand Command {get;set;}
    public object CommandParameter {get;set;}
}

Used in axml as: