Question

lets say I have a SP in SQL :

CREATE PROCEDURE mySP
    @LastName nvarchar(10), 
    @FirstName nvarchar(20) 
AS 
  ...
GO

In c# there isn’t string type with specified length. its max length is 2^32-1 ( IMHO)

So , What kind of protection does the C# developer has for : not to send string with exceeding length ?

( I don’t think any ORM also has this restriction – maybe i’m wrong).

The only way (I see ) is to read the Sp params before(!) and keep in cache , and then to build some kind of proxy which will be responsible for this.

But still – i’m afraid it would only fail at runtime.

Am i right ?

What are the solutions for this ?

Answer 1

C# doesn’t have limited-length strings, the checks will have to be done at run-time. It depends on the ORM you use, though. EntityFramework has a MaxLength attribute you can use to decorate strings.