Code formating in WPF project

Hello everyone,

Currently I am working on small WPF project in SD. I stumbled upon strange behavior of code formating in my project.
While I am learning how to code in WPF, usually I use this formating style:

<Grid Background="LightSkyBlue">
    <Grid.RowDefinitions>
        <RowDefinition Height="Auto"/>
        <RowDefinition Height="Auto"/>
        <RowDefinition Height="*"/>
        <RowDefinition Height="*"/>
    </Grid.RowDefinitions> 
</Grid>

But whenever I change something in Properties window my code changes to this:

<Grid
    Background="LightSlateGray">
        <Grid.RowDefinitions>
            <RowDefinition
                Height="Auto" />

<RowDefinition
                Height="Auto" />
            <RowDefinition
                Height="*" />
            <RowDefinition
                Height="*" />
        </Grid.RowDefinitions>
</Grid>

My question is, how to avoid this kind of situation?
Thanks.