Using UniDynArray on ASP.net MVC view page - asp.net-mvc-3

Question

Can anyone help me on how to use UniDynArray on ASP.net MVC3 (MS Visual Studio 2010) View Page?
I managed to add reference (U2.Data.Client) to the project and I'm able to use it in the Controller, but not in View page.
The reason to utilize the UniDynArray is that, I would like to pass a dynamic array from Controller to View and back to controller. This way I will not have to set every field to VIEWDATA in order to be use in View.

Answer 1

I would like to explain how to pass UniDynArray to MVC View from Controller the following ways:
MVVM Pattern (Raw UniDynArray)
ViewBag Pattern (Raw UniDynArray)
MVVM Pattern (flatten UniDynArray, UniDynArray to .NET Object DataTable)
MVVM Pattern (flatten UniDynArray, UniDynArray to POCO Object)
In this post , I will answer MVVM Pattern (Raw UniDynArray). Later I will cover rest.
Create ASP.NET MVC3 Project
Create a Model
Add a controller
Create a View
Open ‘CustomerViewModel.cs’ file and paste the following code
namespace Test_MvcApplication.Models
{
public class CustomerViewModel
{
public Customer MyCustomer { get; set; }
public CustomerViewModel(Customer pCustomer)
{
MyCustomer = pCustomer;
}
}
public class Customer
{
private UniDynArray myVar;
public UniDynArray MyUniDynArray
{
get
{
U2ConnectionStringBuilder conn_str = new U2ConnectionStringBuilder();
conn_str.UserID = "user";
conn_str.Password = "pass";
conn_str.Server = "localhost";
conn_str.Database = "HS.SALES";
conn_str.ServerType = "UNIVERSE";
conn_str.AccessMode = "Native"; // FOR UO
conn_str.RpcServiceType = "uvcs"; // FOR UO
conn_str.Pooling = false;
string s = conn_str.ToString();
U2Connection con = new U2Connection();
con.ConnectionString = s;
con.Open();
Console.WriteLine("Connected.........................");
// get RECID
UniSession us1 = con.UniSession;
UniSelectList sl = us1.CreateUniSelectList(2);
// Select UniFile
UniFile fl = us1.CreateUniFile("CUSTOMER");
fl.RecordID = "2";
myVar = fl.Read();
return myVar;
}
set
{
myVar = value;
}
}
}
}
Open ‘MyUniDynArrayController.cs’ and paste the following code. As you notice that you are passing object to view and that object has UniDynArray
namespace Test_MvcApplication.Controllers
{
public class MyUniDynArrayController : Controller
{
//
// GET: /MyUniDynArray/
public ActionResult Index()
{
Customer c = new Customer();
UniDynArray r = c.MyUniDynArray;
var l = new CustomerViewModel(c);
return View(l);
}
}
}
Open ‘MyUniDynArray\ Index.cshtml’ and paste the following code. #Model contains ViewModel object (UniDynArray)
#{
ViewBag.Title = "Index";
}
MyUniDynArray
==================
#Model.MyCustomer.MyUniDynArray
Open ‘Shared\Layout.cshtml’ file and add the following line
<nav>
<ul id="menu">
<li>#Html.ActionLink("MyUniDynArray", "Index", "MyUniDynArray")</li>
<li>#Html.ActionLink("Home", "Index", "Home")</li>
<li>#Html.ActionLink("About", "About", "Home")</li>
</ul>
</nav>
Run the application and press ‘MyUniDynArray’. You will see UniDynArray in View. I am not sure how are you going to bind UniDynArray with HTML5/Razor Controls. That’s why I sugest you to flatten UniDynArray.
Typed UniDynArray in MVC View

Answer 2

In this post , I would like to describe 'MVVM Pattern (flatten UniDynArray, UniDynArray to .NET Object Object) '.
Create a Model
Create Controller
Create View
Open Model file (Models\CustomerViewModel2.cs) and paste the coode
namespace Test_MvcApplication.Models
{
public class Customer2
{
public int ID { get; set; }
public string Name { get; set; }
public DateTime HireDate { get; set; }
}
public class Customer2Repository
{
private List<Customer2> m_custList = new List<Customer2>();
public List<Customer2> CustomerList
{
get
{
U2ConnectionStringBuilder l = new U2ConnectionStringBuilder();
l.Server = "localhost";
l.UserID = "user";
l.Password = "pass";
l.Database = "HS.SALES";
l.ServerType = "universe";
string lconnstr = l.ToString();
U2Connection c = new U2Connection();
c.ConnectionString = lconnstr;
c.Open();
U2Command command = c.CreateCommand();
command.CommandText = "CALL MV_TO_DATASET_SELECT_SUBROUTINE(?,?)"; // UniVerse subroutine
command.CommandType = CommandType.StoredProcedure;
U2Parameter p1 = new U2Parameter();
p1.Direction = ParameterDirection.InputOutput;
p1.Value = "";
p1.ParameterName = "#arg1";
U2Parameter p2 = new U2Parameter();
p2.Direction = ParameterDirection.InputOutput;
p2.Value = "";
p2.ParameterName = "#arg2";
command.Parameters.Add(p1);
command.Parameters.Add(p2);
command.ExecuteNonQuery();
string lRetValue = (string)command.Parameters[1].Value;
//command.Parameters[1].MV_To_POCO<int>();
m_custList = command.Parameters[1].MV_To_POCO<Customer2>();
return m_custList;
}
set
{
m_custList = value;
}
}
}
public class CustomerViewModel2
{
public Customer2 MyCustomer2 { get; set; }
public List<Customer2> CustomerList { get; set; }
public CustomerViewModel2(Customer2 pCustomer)
{
MyCustomer2 = pCustomer;
}
public CustomerViewModel2(List<Customer2> pCustomerList)
{
CustomerList = pCustomerList;
}
}
}
Open Controller file (Controllers\MyUniDynArray2Controller.cs)
namespace Test_MvcApplication.Controllers
{
public class MyUniDynArray2Controller : Controller
{
//
// GET: /MyUniDynArrayController2/
public ActionResult Index()
{
Customer2Repository lvar = new Customer2Repository();
List<Customer2> lCustomer2List = lvar.CustomerList;
var l = new CustomerViewModel2(lCustomer2List);
return View(l);
}
}
}
Open View File (Views\MyUniDynArray2\Index.cshtml)
#{
ViewBag.Title = "Index";
}
<h2>Index</h2>
<table border="1">
<tr>
<td>ID</td>
<td>Name</td>
<td>HireDate</td>
</tr>
#foreach (var myItem in Model.CustomerList)
{
<tr>
<td>#myItem.ID</td>
<td>#myItem.Name</td>
<td>#myItem.HireDate</td>
</tr>
}
</table>
Open ‘Shared\Layout.cshtml’ file and add the following line
<nav>
<ul id="menu">
<li>#Html.ActionLink("MyUniDynArray2", "Index", "MyUniDynArray2")</li>
<li>#Html.ActionLink("MyUniDynArray", "Index", "MyUniDynArray")</li>
<li>#Html.ActionLink("Home", "Index", "Home")</li>
<li>#Html.ActionLink("About", "About", "Home")</li>
</ul>
</nav>
Run the application and press ‘MyUniDynArray2’. You will see Flatten UniDynArray. Basically UniDynArray becomes array of .NET objects(List)
Used UniVerse Subroutine
SUBROUTINE MV_TO_DATASET_SELECT_SUBROUTINE(ARG_INPUT,ARG_OUTPUT)
x = ARG_INPUT
ARG_OUTPUT = "100":#VM:"101":#VM:"102":#VM:"103":#FM:"Nancy":#VM:"Andrew":#VM:"Janet":#VM:"Margaret":#FM:"01/06/1991":#VM:"06/07/1996":#VM:"11/08/1999":#VM:"12/10/2001"
RETURN