Question

I have an Entity datasource, which I need to filter before passing it to the ListView. Here is the unfiltered version (works great):

DataContext db = new DataContext();
ListView1.DataSource = db.Cars;
ListView1.DataBind();

I’m trying to understand how to select only the Cars that are blue (a field/property/row in the database), and pass just those Cars to the ListView. I’ve been trying variations on this:

String selectedColor = "blue";
DataContext db = new DataContext();
ListView1.DataSource = db.Cars.Any(m => m.Cars.color == selectedColor);
ListView1.DataBind();

Answer 1

Shouldn’t this be more like,

ListView1.DataSource = db.Cars.Where(car => car.Color == selectedColor);

Your db.Cars.Any(m => m.Cars.color == selectedColor) [Correction: should be m.Color instead of m.Cars.Color if you wanted to use it by the way] statement will return true if in your Cars collection there’s at least one car with color value as that of the selectedColor.