I'm developing a API that uses lambda expressions to specify properties. I'm using this famous piece of code similar to this one (this is simplified and incomplete, just to make clear what I'm talking about):
public void Foo<T, P>(Expression<Func<T, P>> action) { var expression = (MemberExpression)action.Body; string propertyName = expression.Member.Name; // ... }
To be called like this:
Foo((String x) => x.Length);
Now I would like to specify a property path by chaining property names, like this:
Foo((MyClass x) => x.Name.Length);
Foo should be able to split the path into its property names ("Name"
and "Length"
). Is there a way to do this with reasonable effort?
There is a somehow similar looking question, but I think they are trying to combine lambda expressions there.
Another question also is dealing with nested property names, but I don't really understand what they are talking about.
C programming language is a machine-independent programming language that is mainly used to create many types of applications and operating systems such as Windows, and other complicated programs such as the Oracle database, Git, Python interpreter, and games and is considered a programming foundation in the process of ...
In the real sense it has no meaning or full form. It was developed by Dennis Ritchie and Ken Thompson at AT&T bell Lab. First, they used to call it as B language then later they made some improvement into it and renamed it as C and its superscript as C++ which was invented by Dr.
C is a general-purpose language that most programmers learn before moving on to more complex languages. From Unix and Windows to Tic Tac Toe and Photoshop, several of the most commonly used applications today have been built on C. It is easy to learn because: A simple syntax with only 32 keywords.
What is C? C is a general-purpose programming language created by Dennis Ritchie at the Bell Laboratories in 1972. It is a very popular language, despite being old. C is strongly associated with UNIX, as it was developed to write the UNIX operating system.
Something like this?
public void Foo<T, P>(Expression<Func<T, P>> expr) { MemberExpression me; switch (expr.Body.NodeType) { case ExpressionType.Convert: case ExpressionType.ConvertChecked: var ue = expr.Body as UnaryExpression; me = ((ue != null) ? ue.Operand : null) as MemberExpression; break; default: me = expr.Body as MemberExpression; break; } while (me != null) { string propertyName = me.Member.Name; Type propertyType = me.Type; Console.WriteLine(propertyName + ": " + propertyType); me = me.Expression as MemberExpression; } }
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