I am trying to replace the parameter type in a lambda expression from one type to another. I have found other answers on stackoverflow i.e. this one but I have had no luck with them. Imagine for ...

I know from the MSDN's article about How to: Modify Expression Trees what an ExpressionVisitor is supposed to do. It should modify expressions. Their example is however pretty unrealistic so I wa...

I am using the ExpressionVisitor to parse an expression tree to find out if it contains a specified parameter. Once I have found the parameter, there is no point in continuing the traversal. Is th...

Given an Expression<Func<TEntity, bool>> along the lines of entity => entity.SubEntity.Any( subEntity => ( (subEntity.SomeProperty == False) AndAlso subEntity.SubSubEntity.Fo...

The System.Linq.Expressions.ExpressionVisitor has a method named VisitExtension which seems to do nothing other than call the VisitChildren method on the Expression being visited. protected intern...

Below is a simple demonstration code of my problem. [TestClass] public class ExpressionTests { [TestMethod] public void TestParam() { Search<Student>(s => s.Id == 1L); GetStudent(1L...

I'm trying to write an ExpressionVisitor to wrap around my LINQ-to-object expressions to automatically make their string comparisons case insensitive, just as they would be in LINQ-to-entities. ED...

We're having some issues implementing soft delete functionality with entity framework. The idea is to use a repository which is aware of the EF context. On the level of the repository we implemente...

I want to combine two LambdaExpressions without compiling them. This is what it looks like if I do compile them: public Expression<Func<TContainer,bool>> CreatePredicate<TContaine...

I'm looking for a way of parsing a conditional expression to a string. The best example I can think of is LINQ-to-SQL. It uses ExpressionVisitors to format "Where" clauses. Example: from ...

Before someone shouts out the answer, please read the question through. What is the purpose of the method in .NET 4.0's ExpressionVisitor: public static ReadOnlyCollection<T> Visit<T>...