Container auto-size to fixed-size elements only

Question

I have a RelativePanel with a fixed size element (in this case a TextBlock). This RelativePanel also has two Image elements with no Height/Width explicitly set, but set to stretch. What I want is that the RelativePanel (or some other container) adjusts its size to accommodate the TextBlock and then have the Images scale to fill the space that's left for them.

The RelativePanel is arranged horizontally, going like (generic example):

<RelativePanel Height="80">
    <Image Source="..."/>
    <TextBlock Text="..."/>
    <Image Source="..."/>
</RelativePanel>

What would be a good way to accomplish this?

Edit: Image of what I want

Answer 1

Images control has Stretch="UniformToFill" property that will display image in available space.

Can you try with this

<RelativePanel x:Name="mainPanel" Height="80">
    <Image x:Name="Img1" Source="..." Stretch="UniformToFill"/>
    <TextBlock x:Name="TxtBlock1" Text="..."/ RelativePanel.AlignLeftWith="Img1" Width=150>
    <Image x:Name="Img2" Source="..." Stretch="UniformToFill" RelativePanel.AlignLeftWith="TxtBlock1"/></RelativePanel>