Случайное расположение Label на Grid

<Window x:Class="Zad_22.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525" Closed="Window_Closed">
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="2*"></ColumnDefinition>
            <ColumnDefinition Width="5*"></ColumnDefinition>
            <ColumnDefinition Width="*"></ColumnDefinition>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="*"></RowDefinition>
            <RowDefinition Height="10*"></RowDefinition>
        </Grid.RowDefinitions>
        <Label Content="{Binding Prey}" Grid.Column="1" Grid.Row="1"></Label>
    </Grid>
</Window>

<Canvas Name="Panel" Grid.Column="1" Grid.Row="1" Background="YellowGreen" MouseDown="Panel_MouseDown">
            <Button Name="button" Content="{Binding Prey}" Command="{Binding AddScores}" CommandParameter="{Binding ElementName=button, Path=Content}">
                <Button.Template>
                    <ControlTemplate>
                        <Label  Content="{Binding Prey}" Margin="{Binding Coords, Converter={StaticResource conv}}" ></Label>
                    </ControlTemplate>
                </Button.Template>
            </Button>
            
        </Canvas>