New Post: How to Bind String Value to TextBox?

Is your Product class a ViewModel? If so, it should derive from ViewModelBase.
Then, your Name setter should look something like:

            set
            {
                if (Name == value)
                {
                    return;
                }
                Name = value;
                RaisePropertyChanged(() => Name);
            }

If your textbox's Text property is bound to the Name property, the textbox should update when the Name property changes.
Could you give more details?

• How have you set the DataContext for the textbox?
• What happens when the button is clicked?