var newExpr = Expression.New(typeof(MyClass));
var arg1 = Expression.Constant("Hello"); var arg2 = Expression.Constant(123); var newExpr = Expression.New(typeof(MyClass).GetConstructor(new[] { typeof(string), typeof(int) }), arg1, arg2);
var newExpr = Expression.New( typeof { Name = "", Age = 0 }.GetType(), Expression.Constant("John"), Expression.Constant(25));In this example, we create a new expression for creating an instance of an anonymous type with Name and Age properties initialized with "John" and 25, respectively. Overall, the NewExpression is useful when creating expressions that involve creating new objects or invoking constructors. It is part of the System.Linq.Expressions package library, which provides a powerful framework for building and manipulating expressions in C#.