UWP: how to reflow controls based on grid width

Question

I have two buttons placed horizontally. They are inside a grid. This grid containing two buttons has width 370. When the text on the button becomes large, it needs width more than 370. So what I want to do is, instead of placing then horizontally, I want to place them vertically dynamically when text will start cropping. Basically, I want auto-reflow behavior inside this grid for these two buttons based on width of the grid (not based on width of main window). So I want them to fit in 370 width and if they cannot, I want them to place themselves vertically. How can I achieve this?

I explored GridView but it will show buttons inside the box that comes with GridView so I do not want extra UI that comes with GridView unless we have an option to hide it?

I checked AdaptiveTrigger but that is based on width of window not of the control (grid in this case)

<Grid
    Grid.Row="2"
    Margin="0,36,0,28"
    Width="370"
    HorizontalAlignment="Left"
    VerticalAlignment="Bottom">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="*" />
        <ColumnDefinition Width="*" />
    </Grid.ColumnDefinitions>
    <Grid
        Grid.Column="0"
        CornerRadius="3">
        <Button
            MinWidth="118"
            MinHeight="30"
            HorizontalAlignment="Left"
            HorizontalContentAlignment="Center"
            VerticalContentAlignment="Center"
            AutomationProperties.Name="{x:Bind ViewModel.PrimaryActionAutomationName, Mode=OneWay}"
            BorderThickness="1"
            Click="{x:Bind ViewModel.InvokePrimaryAction}"
            Content="{x:Bind ViewModel.PrimaryAction, Mode=OneWay}"
            CornerRadius="3"
            Style="{StaticResource AccentButtonStyle}" />
    </Grid>
    <Grid
        Grid.Column="1"
        CornerRadius="3"
        Margin="32,0,0,0">
        <HyperlinkButton
            AutomationProperties.Name="{x:Bind ViewModel.SecondaryLinkAutomationName, Mode=OneWay}"
            AutomationProperties.AutomationId="{Binding AutomationId, ConverterParameter=HyperlinkButton, Converter={StaticResource AutomationIdConverter}}"
            Content="{x:Bind ViewModel.SecondaryText, Mode=OneWay}"
            FontSize="14"
            Margin="0,0,0,0"
            Style="{StaticResource HyperlinkButtonStyle}"
            NavigateUri="{x:Bind ViewModel.SecondaryLink, Mode=OneWay}" />
    </Grid>
</Grid>