Could somebody please tell me about way to solve problem?

I have simple binding where I want to bind label text to "DateTime" property of one of my classes. The problem is, what this binding correctly works only **once** when control is loaded, but it doesn't react later, when I change source property value.

I checked, and I am **sure** what I am changing source property value.
I also tried to use different "UpdateSourceTrigger" values, but there were no difference.

What I did wrong here? Could someone please give some ideas? Thank you in advance.

[![Control](https://i.stack.imgur.com/B0i57.png)](https://i.stack.imgur.com/B0i57.png)

```
public CheckListTaskControl(ICheckListTask task)
{
       InitializeComponent();
       _task = task;
       dateFromLabel.SetBinding(Label.ContentProperty,
       new Binding()
       {
           Source = _task.TaskDatePeriod,
           Mode = BindingMode.OneWay,
           Path = new PropertyPath("DateFrom"),
           Converter = new DateTimeFormatConverter(),
           UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged,
           ConverterParameter = _dateFormat
        });
}}

```

\_dateFormat is just string "yyyy-MM-dd HH:mm"