How do I add .CS functionality to XAML classes built in Expression Design?

How do I add .CS functionality to XAML classes built in Expression Design?

I have a Silverlight project handed to me by designers that does not seem to have much functionalty to it yet. One of the first things I have noticed is that there does not seem to be any corresponding .cs files that match up with what appears to be children of the "LayoutRoot". I mean, as it appears in Expression Blend, these are child nodes in the "Objects and Timeline Tab" under "LayoutRoot".

When viewed in Visual Studio 8, they appear to be <Grid> children nodes of <Grid x:Name="LayoutRoot" Background="Black"> of the Page.xaml class. Shouldn't the first step be that I generate some .cs files or class to handle the functionality of these grids? I did a search on the name of the first child grid and I did not get any results in any of the existing .cs files. How do I generate .cs files?

In the project panel of Expression Blend, there are .xaml and associated xaml.cs files for some navagation buttons but not for the<grid> classes.

I assume now that what I need to do is open Expression Design to generate the .xaml.cs files. If I do, how do I do it? What file should I input? Do I use the page.xaml file?

The Grid is commonly used as a container control for the entire page. You normally don't deal with it directly. If you have controls in the grid, you deal with those controls. Give them names(ie.. x:Name="someName"), then deal with the events for those controls. It's almost exactly like WinForms in regards to controls and dealing with events.

For example, here is some XAML from a WPF project(I know it's not Silverlight but basically the same)

XAML

Code:

---

<Grid x:Name="LayoutRoot">
    <Canvas
        x:Name="canvas1"
        Height="100"
        HorizontalAlignment="Left"
        Margin="116,62,0,0"
        VerticalAlignment="Top"
        Width="200">
           
    </Canvas>
       
    <Button
        x:Name="btnGetChildren"
        Content="Get Children"
        Height="23"
        Margin="174,209,218,47"
        Width="75"
        Click="btnGetChildren_Click" />
</Grid>

---

Notice that I have a Canvas and a Button "inside" the Grid. Notice that the button has a Click event that I am handling. The code for that click event is in the "xaml.cs" file for the page.