MVC 4 - Insert list/array from Controller to SQL Server - sql-server

Question

I am using MVC4 C# Razor view and MS SQL Server. I need to insert a list/array value from controller to sql server. I am passing values from view to controller and getting the values in controller.
My data structures are -
{sid: "101", m1Qty: "1", m2Qty: "3", m3Qty: ""}
{sid: "102", m1Qty: "5", m2Qty: "6", m3Qty: ""}
{sid: "103", m1Qty: "8", m2Qty: "0", m3Qty: ""}
Above data needed to insert my table (tbl_monthqty) in the below order. ID auto generated -
ID SID MonthID mQty
1 101 1 1
2 102 1 5
3 103 1 8
4 101 2 3
5 102 2 6
If any value null or 0, need to ignore
MonthID is for example - m1Qty = 1, m2Qty = 2, m3Qty = 3
My controller (C#) is -
[HttpPost]
public JsonResult SaveQty(IList<AllQty> model)
{
var list = new [] { model };
var count = list.Count();
DataTable dt = new DataTable();
dt.Columns.Add("SID");
dt.Columns.Add("MonthID");
dt.Columns.Add("mQty");
for(int i=0; i<count; i++)
{
//dt.Rows.Add();
// Not sure what I will do here
}
return Json(new { success = true });
}
My class is -
public class AllQty
{
public int SID { get; set; }
public int MonthID { get; set; }
public int mQty { get; set; }
}
I am getting the list value in controller but not sure how I will insert those list/array values in my table. I have tried few asked questions like this but did not work.

Answer 1

First create data model that represent json data structure:
public class FirstModel
{
public int SID;
public string m1Qty;
public string m2Qty;
public string m3Qty;
}
Then data model that you want to store the data:
public class AllQty
{
public int SID { get; set; }
public int MonthID { get; set; }
public int mQty { get; set; }
}
Then convert the json to list of FirstModel objects (I assume you already did it), and finally convert data in List to List :
List<FirstModel> qtYs = new List<FirstModel>();
List<AllQty> allQties = new List<AllQty>();
foreach (FirstModel item in qtYs)
{
if (string.IsNullOrEmpty(item.m1Qty))
{
AllQty allQty = new AllQty
{
MonthID = 1,
mQty = int.Parse(item.m1Qty),
SID = item.SID
};
allQties.Add(allQty);
}
if (string.IsNullOrEmpty(item.m2Qty))
{
AllQty allQty = new AllQty
{
MonthID = 2,
mQty = int.Parse(item.m1Qty),
SID = item.SID
};
allQties.Add(allQty);
}
if (string.IsNullOrEmpty(item.m3Qty))
{
AllQty allQty = new AllQty
{
MonthID = 3,
mQty = int.Parse(item.m1Qty),
SID = item.SID
};
allQties.Add(allQty);
}
}
DataTable dt = new DataTable();
dt.Columns.Add("SID");
dt.Columns.Add("MonthID");
dt.Columns.Add("mQty");
foreach (AllQty allQty in allQties)
{
var row = dt.NewRow();
row["SID"] = allQty.SID;
row["MonthID"] = allQty.MonthID;
row["mQty"] = allQty.mQty;
dt.Rows.Add(row);
}