expression-trees

I'm executing a pretty simple query using Linq to SQL. I'm creating the expression and then passing it to the Where() extension method. The Linq internals are throwing a StackOverflowException when I attempt to actually execute the query. Here is the code: int expectedCount = 4; Expression<Func<Thing, bool>> expression = ...; //Expression looks like (LocaleID = 1 && GenderID ==1 && (TimeFrameID == 2007 || TimeFrameID == 2008)) using (XYZDataContext context = new XYZDataContext()) { int count = context.Things.Where(expression).Count(); //... } And here is the DebugView of the expression:

Let's say, I have a Print method like this: private static void Print(IEnumerable items) { // Print logic here } I want to pass a collection class to this Print method, which should print all the fields like a table. For example, my input collection can be "Persons" or "Orders" or "Cars" etc. If I pass the "Cars" collection to the Print method, it should print the list of "Car" details such as: Make, Color, Price, Class etc. I won't know the type of the collection until run-time. I tried and achieved a solution using TypeDescriptors and PropertyDescriptorCollection . But, I don't feel that is

I found very nice answer on a question about building Expression Tree for Where query. Expression.Lambda and query generation at runtime, simplest "Where" example Can someone help me and show me how this example could be implemented in the scenario with nested property. I mean instead of: var result = query.Where(item => item.Name == "Soap") With that solution: var item = Expression.Parameter(typeof(Item), "item"); var prop = Expression.Property(item, "Name"); var soap = Expression.Constant("Soap"); var equal = Expression.Equal(prop, soap); var lambda = Expression.Lambda<Func<Item, bool>>