如何使用ASP.NET MVC將多個動態行值獲取到數據庫中

Question

public void create(account_detail c, int jobcard_id)
{
    SqlConnection con = new SqlConnection(@"Data source =(LocalDB)\v11.0;AttachDbFilename=C:\Users\Wattabyte Inc\Documents\CarInfo.mdf;Integrated Security=True;");

    SqlCommand cmd = new SqlCommand();
    cmd.CommandType = CommandType.Text;
    cmd.Connection = con;

    con.Open();
    string additionalText = string.Empty;
    bool needComma = false;

    foreach (var details in c.Data)
    {
        if (needComma)
        {
            additionalText += ", ";
        }
        else
        {
            needComma = true;
            additionalText += "('" + jobcard_id + "','" + details.completed_by + "','" + details.reporting_time + "','" + details.cost_activity + "','" + details.spared_part_used + "')";
        }

        cmd.CommandText = "insert into child_detail values " + additionalText + ";";
        cmd.ExecuteNonQuery();
    }

我正在使用此代碼，但它僅采用單個值，但我想將多個值保存到數據庫中。 我該如何實現？

Answer 1

如果您需要多個jobcard_id請執行此操作。 請注意，這使它適合您的代碼，建議您進行一些重構，並找出一種更好的方法，因為這樣做很丑陋。

public void create(account_detail c, List<int> jobcard_ids)
        {
            SqlConnection con = new SqlConnection(@"Data source =(LocalDB)\v11.0;AttachDbFilename=C:\Users\Wattabyte Inc\Documents\CarInfo.mdf;Integrated Security=True;");
            SqlCommand cmd = new SqlCommand();
            cmd.CommandType = CommandType.Text;
            cmd.Connection = con;
            con.Open();
           string additionalText = string.Empty;
             bool needComma = false;

             foreach (var details in c.Data)
              {
                 if (needComma)
                 {
                      additionalText += ", ";
                 }

                      else
                 {

                     needComma = true;
                  foreach(var jobcard_id in jobcard_ids)
                  {
                     additionalText += "('" + jobcard_id + "','" + details.completed_by + "','" + details.reporting_time + "','" + details.cost_activity + "','" + details.spared_part_used + "')";
                     if (jobcard_id != jobcard_ids.Last())
                     {
                         // We will need to comma separate the query string unless it's the last item
                         additionalText+= ","; 
                     }
                  }
                }
                 cmd.CommandText = "insert into child_detail values " + additionalText + ";";
                 cmd.ExecuteNonQuery();

              }