Passing button value as command parameter - xamarin

Question

I have a calculator style grid. How can I pass the text of the button as a Command Parameter in Xamarin Forms:
CONTENT RESOURCE
<ContentPage.Resources>
<ResourceDictionary>
<Style x:Key="PhoneKeys" TargetType="Button">
<Setter Property="BackgroundColor" Value="White"/>
<Setter Property="FontSize" Value="36"/>
<Setter Property="Command" Value="{Binding Source={x:Reference contactsListView}, Path=BindingContext.TapCommand1}"/>
<Setter Property="CommandParameter" Value="Pass Button Text"/>
</Style>
</ResourceDictionary>
</ContentPage.Resources>
GRID LAYOUT
<Button Style="{StaticResource PhoneKeys}" Text="1" Grid.Row="1" Grid.Column="0" />
<Button Style="{StaticResource PhoneKeys}" Text="1" Grid.Row="1" Grid.Column="0" />
<Button Style="{StaticResource PhoneKeys}" Text="2" Grid.Row="1" Grid.Column="1" />
<Button Style="{StaticResource PhoneKeys}" Text="3" Grid.Row="1" Grid.Column="2" />
<Button Style="{StaticResource PhoneKeys}" Text="4" Grid.Row="2" Grid.Column="0" />
<Button Style="{StaticResource PhoneKeys}" Text="5" Grid.Row="2" Grid.Column="1" />
<Button Style="{StaticResource PhoneKeys}" Text="6" Grid.Row="2" Grid.Column="2" />
<Button Style="{StaticResource PhoneKeys}" Text="7" Grid.Row="3" Grid.Column="0" />
<Button Style="{StaticResource PhoneKeys}" Text="8" Grid.Row="3" Grid.Column="1" />
<Button Style="{StaticResource PhoneKeys}" Text="9" Grid.Row="3" Grid.Column="2" />
<Button Style="{StaticResource PhoneKeys}" Text="*" Grid.Row="4" Grid.Column="0" />
<Button Style="{StaticResource PhoneKeys}" Text="0" Grid.Row="4" Grid.Column="1" />
<Button Style="{StaticResource PhoneKeys}" Text="#" Grid.Row="4" Grid.Column="2" />

Answer 1

Use this syntax to get property of control "{x:Reference myButton}"
You can send self button reference to get complete button object
Style
<Setter Property="CommandParameter" Value="{x:Reference myButton}" />
XAML
<Button x:Name="myButton" Style="{StaticResource PhoneKeys}" Text="#" Grid.Row="4" Grid.Column="2" />
Define button name of each button and get the object reference of that button.
public ICommand TapCommand1 => new Command((obj) =>
{
var button = obj as Button;
var text = button.Text;
});
OR Best way to define command parameter in each button with every button name
<Button x:Name="myButton" Style="{StaticResource PhoneKeys}" CommandParameter="{x:Reference myButton}" Text="#" Grid.Row="4" Grid.Column="2" />