如何在Xamarin.Forms中制作方形按钮网格？

<Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="*" />
        <RowDefinition Height="*" />
        <RowDefinition Height="*" />
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="*" />
        <ColumnDefinition Width="*" />
        <ColumnDefinition Width="*" />
    </Grid.ColumnDefinitions>
</Grid>

for (int row = 0; row < 3; row++)
{
    for (int column = 0; column < 3; column++)
    {
        Button button = new Button
        {
            Text = "Button",
            Style = (Style)Application.Current.Resources["SquareButtonStyle"]
        };
        button.Clicked += Button_Clicked;

        Grid.SetRow(button, row);
        Grid.SetColumn(button, column);

        grid.Children.Add(button);
    }
}

<Style x:Key="SquareButtonStyle" TargetType="Button">
    <Setter Property="BackgroundColor" Value="LightBlue" />
    <Setter Property="TextColor" Value="White" />
    <Setter Property="CornerRadius" Value="0" />
    <Setter Property="HeightRequest" Value="100" />
    <Setter Property="WidthRequest" Value="100" />
</Style>