如何在 asp.net 中实现 Sql 助手 class

How to implement Sql helper class in asp.net

SqlHelper.ExecuteNonQuery(conString, CommandType.StoredProcedure, "UserRegister_Insert",
                        new SqlParameter("@firstname",SqlDbType.NVarChar,50),
                        new SqlParameter("@lastname",LastName),
                        new SqlParameter("@email",Email),
                        new SqlParameter("@password",Password),
                        new SqlParameter("@contactno",ContactNo));

我也实现了 sql 助手 class 但是 class 的成员无法访问。

当前上下文中未定义的连接字符串出错?
请取一个字符串变量并在您的代码上方对其进行初始化,然后尝试 运行 it

String conString=System.Configuration.ConfigurationManager.
    ConnectionStrings["connectionStringName"].ConnectionString;//your connection string name
SqlHelper.ExecuteNonQuery(conString, CommandType.StoredProcedure, "UserRegister_Insert",
                        new SqlParameter("@firstname",SqlDbType.NVarChar,50),
                        new SqlParameter("@lastname",LastName),
                        new SqlParameter("@email",Email),
                        new SqlParameter("@password",Password),
                        new SqlParameter("@contactno",ContactNo));