Set C# Parameter Properties

Hi all, Is it possible when creating a stored procedure through visual studio using a sql server 2005 project, to set the sizes of the parameters that are specified. For example:

public partial class test{ [Microsoft.SqlServer.Server.SqlProcedure] public static void addRecord(string name, string details) { ................. some code ................. }}
Would it be possible to set the size of the parameter 'details' to nvarchar(max) and 'name' to nvarchar(50) or something along those lines. The problem at the moment is that when this project is deployed both of the parameters are set to 4000 characters and sometimes the details parameter are greater than 4000 characters and it is being truncated.

I am currently running some sql that alters the procedure to set the sizes of the parameters but this isn't really an ideal solution.

Any help would be gratefully appreciated.
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