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How to scale images in Silverlight


We can do the image scaling from XAML as well as from code-behind.

XAML:

<UserControl
          xmlns=http://schemas.microsoft.com/winfx/2006/xaml/presentation
          xmlns:x=http://schemas.microsoft.com/winfx/2006/xaml
          x:Class="imginSL.MainPage"
          Width="640" Height="480">
          <Grid x:Name="LayoutRoot" Background="White">
                   <Image x:Name="img" Margin="151,127,208,142" Source="Waterfall.jpg" Stretch="Fill">
                   <Image.RenderTransform>
                   <ScaleTransform x:Name="imagescale" ScaleX="1.2" ScaleY="1.2" CenterX="100" CenterY="100">
                   </ScaleTransform>
                   </Image.RenderTransform>
                   </Image>
          </Grid>
</UserControl>

From Code-behind:

ScaleTransform myscale = new ScaleTransform();
myscale.ScaleX = myscale.ScaleX * 2;
myscale.ScaleY = myscale.ScaleY * 2;
myscale.CenterX = img.Width / 2;
myscale.CenterY = img.Height / 2;
img.RenderTransform = myscale;