How to update model on Entry TextChanged

Hi!

I am using an Entry like this

            <Entry
                x:Name="Name"
                Text="{Binding Name, Mode=TwoWay}"
            />

When I tap my "Save" ToolBarItem, the text on the model is not being updated.

If I tap off the Entry, the model is updated.

I tried with a behavior but couldn't figure it out.

Thanks,
Ant