Is there a way to convert string representation of lambda to a lambda Func?
Func<Product, bool> func = Parse<Product, bool>("product => product.Name.Length > 0");
I tried Dynamic LINQ but it doesn't work as expected - for example it doesn't expect lambda syntax =>.
Summary of answers:
- writing my own C# compiler - very funny
- firing up external compiler (like csc.exe) - very slow
- using DLINQ - as I said I don't see how it can parse lambda expressions
Why do I need this: because there's no way to pass lambdas to custom attributes like
[Secure(role => role.CanDoThis && role.AllowedCount > 5)]
So as a workaround I'd like to pass lambda as string: "role => role.CanDoThis && role.AllowedCount > 5". But seems like I'll have to use DLINQ like this: "CanDoThis && AllowedCount > 5" - since that's the syntax it understands. But my question was about true lambdas, I've already used DLINQ at the time of asking.