Question

我知道人们会大声疾呼这个话题遍及整个互联网。我知道，我已经读过它们。而且我还是不明白。我只想从存储过程的结果中填充对象。现在，此存储过程至少需要两个参数-一个 action 和要查找的。

InternalError @Action

@customername只需确定存储过程需要做什么并返回结果。因此，例如，如果我想更新客户，则可以通过对象调用sp：

@Action

这很好。因此，当我只想用sp的结果填充对象时，就会出现问题。在这种情况下，我会将“ Retrieve”作为public class Customer() { //properties public int UpdateCustomer() { using (SQLConnection connection = new SqlConnection(Helper.CnnVal("DataConnection"))) { SQLCommand = new SqlCommand(Helper.Procedure("Customer"), connection); command.CommandType = CommandType.StoredProcedure; SqlParameterCollection parameterCollection = command.Parameters; parameterCollection.Add("@Action", SqlDbType.NVarChar, -1).Value = "Update" //complete the rest of it.... } } }参数，并将@Action作为this.customer_name参数传递给sp。

但是如何将存储过程的结果放入对象中？

我有这个...

@customername

但是我认为它没有用。

很久以前，当我需要填充一个对象时，我曾经为PHP运行“获取”操作。我应该回到这个吗？

Answer 1

您需要在命令上执行SqlReader，如下所示：

using (var connection = new SqlConnection("Connection"))
using (var command = new SqlCommand("Retrieve", connection))
{
    command.CommandType = System.Data.CommandType.StoredProcedure;
    command.Parameters.AddWithValue("@Action", "Retrieve");
    command.Parameters.AddWithValue("@name", this.customer_Name);

    connection.Open();

    using (var reader = command.ExecuteReader())
    {
        while (reader.Read())
        {
            var item = new YourClass();
            // You can use GetX() methods to get the value of the fields
            item.Name = reader.GetString("name");
            // You can also access the fields by using bracket notation
            item.Age = (int)reader["age"];

            // Be careful of nullable fields though!
        }
    }
}

Answer 2

使用@ Encrypt0r建议和指导，它可以正常工作：

public void GetCustomer() {
            using (SqlConnection connection = new SqlConnection(Helper.CnnVal("DataConnection"))) {
                SqlCommand command = new SqlCommand(Helper.Procedure("Customer"), connection);

                command.CommandType = CommandType.StoredProcedure;
                command.Parameters.AddWithValue("@Action", "Retrieve");
                command.Parameters.AddWithValue("@name", this.customer_name);

                connection.Open();

                using (var reader = command.ExecuteReader()) {
                    while (reader.Read()) {
                        this.tbl_id = (int)reader["tbl_id"];
                        this.customer_name = (string)reader["customer_name"];
                        this.customer_id = reader.GetInt32(customer_id);
                        this.customer_address = (string)reader["customer_address"];
                        this.customer_city = (string)reader["customer_city"];
                        this.customer_state = (string)reader["customer_state"];
                        this.customer_zip = reader.GetInt32(customer_zip);
                    }
                }

C＃填充对象

2 个答案: