title: Set button width to be the same as its height (Xamarin Forms)
body: <p>I'm trying to make a circle shaped button and i can't manage to set its height to be the same as its width. Here's the code i tried:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8" ?&gt;
  &lt;ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
               xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
               x:Class="MozaikMuzeum_Xamarin.View.CatalogPage" Title="Katalógus" BackgroundColor="White"&gt;
    &lt;ContentPage.Content&gt;  
      &lt;Grid&gt;
       &lt;Grid.RowDefinitions&gt;
          &lt;RowDefinition Height="Auto" /&gt;
          &lt;RowDefinition Height="*" /&gt;
          &lt;RowDefinition Height="100" /&gt;
        &lt;/Grid.RowDefinitions&gt;
  
        &lt;Grid.ColumnDefinitions&gt;
          &lt;ColumnDefinition Width="Auto" /&gt;
          &lt;ColumnDefinition Width="*" /&gt;
          &lt;ColumnDefinition Width="100" /&gt;
        &lt;/Grid.ColumnDefinitions&gt;
        &lt;Button Text="Ajánló"
             Grid.Row="0" Grid.Column="0"
             TextColor="Black"
             x:Name="Button"
                BindingContext="{x:Reference Name=Button}"
         BorderWidth="4"
                BorderColor="Black"
                BackgroundColor="#FFF"
                BorderRadius="50"
                HeightRequest="{Binding Width}"
          &gt;
  
        &lt;/Button&gt;
      &lt;/Grid&gt;
    &lt;/ContentPage.Content&gt;
  &lt;/ContentPage&gt;
  </code></pre>