UWP Template Control with Event Handler

I am new to UWP and trying out. Please point me to links if its too basic. I am developing an Custom Control ( UWP Template Control ), with some Text box and Buttons. Ideally, I want to use this control in my MainPage as Header Control, depending on each button click in Templatecontrol, I want to render different pages. Now coming to basic question, How do I hookup the event handler in CustomControl This is my Generic.xaml: (Project1.Library)

<ResourceDictionary
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:UWP.CustomControls.Library">

<Style TargetType="local:MyCustomControl" >
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="local:MyCustomControl">
                <Border
                    Background="{TemplateBinding Background}"
                    BorderBrush="{TemplateBinding BorderBrush}"
                    BorderThickness="{TemplateBinding BorderThickness}">
                    <StackPanel Orientation="Horizontal">
                        <TextBlock Text="{TemplateBinding FirstName}" Margin="8 8 2 8" />
                        <Button Content="Go!" Click="MyCustomControl_Click" />
                    </StackPanel>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
</ResourceDictionary>

MyCustomContro.cs:

  public string FirstName
    {
        get { return (string)GetValue(FirstNameProperty); }
        set { SetValue(FirstNameProperty, value); }
    }

    public static readonly DependencyProperty FirstNameProperty =
        DependencyProperty.Register("FirstName", typeof(string), typeof(MyCustomControl), new PropertyMetadata(string.Empty));

public event EventHandler Click;

MainPage.xaml: ( Project1)

<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
    <controls:MyCustomControl Width="400" Height="35" Background="Orange" 
    Margin="20" FirstName="MyFName" LastName="MyLName" Click="MyCustomControl_Click"/>

    <Button Content="Show!" x:Name="Text1" />
</Grid>

Views, I want to access are available in Project1 and so I want to write code on MainPage.xaml.cs to load those Content or Frame.