C#存储过程Output返回参数 方法调用类

存储过程：

create proc proc_GetUserID

@UserName nvarchar(50),@ID int output

as

begin

set @ID = (select ID from UserAccount where UserName = @UserName)

end
C#代码：

private void GetUserID(string userName)

{

SqlParameter[] paras = new SqlParameter[2];

paras[0] = new SqlParameter("@UserName", userName);

paras[1] = new SqlParameter("@ID",SqlDbType.Int);

paras[1].Direction = ParameterDirection.Output;

object o = DataAccess.ExcuteNonQuery_Proc_Output("proc_GetUserID", paras, "@ID");

if (o == null || o.ToString() == "")

{

this.Label1.Text = "没有这个用户名";

}

else

{

this.Label1.Text = o.ToString();

}

}

public class DataAccess

{

public static object ExcuteNonQuery_Proc_Output(string procName, SqlParameter[] parameters,string outName)

{

SqlConnection conn = GetConnection();

SqlCommand cmd = new SqlCommand();

cmd.Connection = conn;

cmd.CommandType = CommandType.StoredProcedure;

cmd.CommandText = procName;

for (int i = 0; i < parameters.Length; i++)

{

cmd.Parameters.Add(parameters[i]);

}

conn.Open();

int n = cmd.ExecuteNonQuery();

object o = cmd.Parameters[outName].Value;

conn.Close();

return o;

}

}