在。net 3.5中更新c#中的XAML GridView

I have a simple (I think) app that reads an SQL database into variables in my program, and I then need to update a gridview defined in XAML with the data I read. I'm constrained to code for .NET 3.5. All the searching I've done on the books I have on XAML, MS .NET help and elsewhere on the Web shows countless examples of doing this from ASP.NET, but none from a C#-XAML combination. I've found doing simple things in XAML ++much++ more difficult and involved than doing the same thing in Winforms, and I'm just not getting this. In particular, data binding seems to me to be a black art. Can someone please look at my XAML and tell me what I need to do or change to populate this control from my C# code-behind?I have a simple (I think) app that reads an SQL