Question

I am using the MVVM pattern.

In my viewmodel I have a enum property for my radio button. This property is connected to my model’s enum property:

public MyEnum MyEnumVar
{
     get { return MyModel.EnumVar; }
     set { MyModel.EnumVar = value; }
}

If I change to a different view and then change back to the original view, instead of the getter being called the setter gets called, and the value passed is the first option for my radio buttons.

Basically every time i switch views my models radio button’s enum gets reset. Is there a way to stop the setter from being called?

Answer 1

I am using a converter so that I can store the resulting boolean into my enum property.

Converters are a horrible solution which by now is widespread and the accepted answer to quite a few duplicate questions on binding RadioButtons, the “proper” way is using a ListBox and the SelectedItem property, that way not a multitude of RadioButtons can fight over your property.

An example of how to do this can be seen in this answer. If you switch view the SelectedItem should bind source to target, selecting the RadioButton with the respective value.