parameter passing problem

why this wont work?

error:
Exception Details: System.Data.SqlClient.SqlException: Procedure or Function 'test1' expects parameter '@.cid', which was not supplied.

.............................................................
ASPX CODE:
string cid12;
cid12 = "user5";
// Connection
ConnectionStringSettings mysettings;
mysettings = System.Configuration.ConfigurationManager.ConnectionStrings["dbase1_connection"];
string myConnectionString = mysettings.ConnectionString;
SqlConnection conn1 = new SqlConnection(myConnectionString);

SqlCommand cmd = new SqlCommand();
cmd.Connection = conn1;
cmd.CommandText = "test1";
cmd.CommandType = CommandType.StoredProcedure;

SqlParameter param = cmd.Parameters.Add("@.cid", SqlDbType.NChar, 20);
param.Direction = ParameterDirection.Input;
param.Value = cid12;

conn1.Open();
cmd.ExecuteNonQuery();
conn1.Close();
.............................................................

STORED PROCEDURE:
ALTER PROCEDURE dbo.test1
(
@.cid nvarchar(20)
)
AS
/* SET NOCOUNT ON */
select tech_id, customer_id, issue_main from [case] where customer_id = @.cid
--GO
RETURN

.............................................................

im using asp.net, C#, and sql express
forgive me. im new to this .net
PLS HELP

pls ignore the post above. i found out that nothing is wrong with that code. i discovered that one on my grid view tables is causing the issue and it is indeed not passing a parameter and thats the reason why i have wasted 12hrs looking at my monitor. hehehe.

my fault. im just human. forgive me.

thanks to you all.