TextBlock not wrapping in Grid - silverlight

Question

I have the following XAML which is meant to show an Image and two TextBlocks on top of eachother beside it:
<StackPanel Orientation="Horizontal" >
<Image Source="{Binding CoverArt}" Height="150" />
<StackPanel Orientation="Vertical">
<StackPanel>
<TextBlock FontSize="30" Text="{Binding Title}" TextWrapping="Wrap" />
</StackPanel>
<Grid Width="auto">
<TextBlock FontSize="22" Text="{Binding Summary}" TextWrapping="Wrap" />
</Grid>
</StackPanel>
</StackPanel>
My problem is getting the text to wrap. I've tried using a Grid and assigning the columns' width but it didn't work. Neither did setting the width values to auto. The only thing that works is hard-coding the width, but I do not want that. Thanks.

Answer 1

A Stackpanel will stretch to the size of its content, so it's not what I would use. Use a grid, as explained in the following posts:
TextBlock TextWrapping not wrapping inside StackPanel
Text in StackPanel doesn't wrap (wp7)
TextBlock inside stackpanel does not wrap text
A quick comparison:
Before with stackpanel
After with one grid (You might want to rearrange the elements a bit)
The code for the last segment:
<pre>
<Grid Grid.Row="1">
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Ellipse Fill="red" Width="150" Height="150" />
<StackPanel Grid.Column="1" Orientation="Vertical">
<StackPanel>
<TextBlock FontSize="30" Text="basdljhba dnaiks d., kasndca casn oiäc cas lkcnaso ca dxjwöbdq wkjöbdqw dkjwqb " TextWrapping="Wrap" />
</StackPanel>
<Grid Width="auto">
<TextBlock FontSize="22" Text="dewdewdewdewdewewd" TextWrapping="Wrap" />
</Grid>
</StackPanel>
</Grid>
Did you try setting the width of the columns to fractions instead? width="2*" That will give you some boundaries without a pixel set size. Some way or another you need to set a constraint for the container. If you have two columns and no size is set they will get 50% each. 2* will make give that column 2/3 of the total column with, see example below.