我可以设置百分比保证金吗

Question

我想在代码中设置百分比的保证金。我正在使用Xamarin.Forms（XAML）。非常感谢您的关注。

我尝试了以下操作：Margin =“ 5 *”和Margin =“ 5％”，但给我一个错误。

<Button Text="{Binding Name}"
     TextColor="White"
     ContentLayout="Top"
     BackgroundColor="Transparent"
     BorderColor="White"
     BorderWidth="2"
     CornerRadius="6"
     Margin="5"/>

What im trying to do.

<flv:FlowListView FlowColumnCount="3" SeparatorVisibility="None" HasUnevenRows="true"
                    FlowItemTappedCommand="{Binding ItemTappedCommand}" FlowLastTappedItem="{Binding LastTappedItem}"
                    FlowItemsSource="{Binding MyCategories}" >

                    <flv:FlowListView.FlowColumnTemplate>
                        <DataTemplate>
                            <Button Text="{Binding Name}"
                                TextColor="White"
                                ContentLayout="Top"
                                BackgroundColor="Transparent"
                                BorderColor="White"
                                BorderWidth="2"
                                CornerRadius="6"
                                Margin="5"/>
                        </DataTemplate>
                    </flv:FlowListView.FlowColumnTemplate>

                </flv:FlowListView>