Question

var result = (from p in productInQuery
      join o in orderInfoQuery on p.refNo equals o.refNo
      join x in productQuery on p.productNo equals x.no
      join t in productOutQuery on p.no equals t.productInNo into productIn
      from t in productIn.DefaultIfEmpty()
      //let dateOut = (from m in orderInfoQuery where m.refNo == t.refNo select m.delivered).FirstOrDefault()
      orderby o.processDate descending
      select new
      {     
          modelNo = x.modelNo,
          mfgNo = p.mfgNo,
          serialNo = p.serialNo,
          poNo = p.poNo,
          lbs = p.lbs,
          width = p.width,
          height = p.height,
          depth = p.depth,
          qty = p.qty,
          dateIn = o.processDate,
          dateOut = (DateTime?)(from m in orderInfoQuery where m.refNo == t.refNo select m.processDate).FirstOrDefault()
      }).ToArray();

I want to add this result into iTextSharp table cell.

but I don’t know how to do,

I tried,

int resultSize = result.Length;

/*
for (int j = 0; j < resultSize; j++)
{
    table.AddCell(result[j]);
}
*/

foreach (string[] test in result) //Error : Unable to cast object of type 
{
    int testSize = test.Length;
    for (int j = 0; j < testSize; j++)
    {
        table.AddCell(test[j]);
    }
}

but I lost way 🙁

anybody knows, please advice me~

[EDIT]

int resultSize = result.Length; //192

test does have a fields…

[EDIT 2]

Actually the result be returned from Model.

PJ.WebUI.Models Reports Class

public class Reports 
{
  public Array GetTransaction(){
    OrdersRepository ordersRepository = new OrdersRepository();
    var productInQuery = ordersRepository.ProductIn;
    var productOutQuery = ordersRepository.ProductOut;
    var productQuery = ordersRepository.Product;
    var orderInfoQuery = ordersRepository.OrderInfo;
    var result = (from p in productInQuery
      join o in orderInfoQuery on p.refNo equals o.refNo
      join x in productQuery on p.productNo equals x.no
      join t in productOutQuery on p.no equals t.productInNo into productIn
      from t in productIn.DefaultIfEmpty()
      //let dateOut = (from m in orderInfoQuery where m.refNo == t.refNo select m.delivered).FirstOrDefault()
      orderby o.processDate descending
      select new
      {     
          modelNo = x.modelNo,
          mfgNo = p.mfgNo,
          serialNo = p.serialNo,
          poNo = p.poNo,
          lbs = p.lbs,
          width = p.width,
          height = p.height,
          depth = p.depth,
          qty = p.qty,
          dateIn = o.processDate,
          dateOut = (DateTime?)(from m in orderInfoQuery where m.refNo == t.refNo select m.processDate).FirstOrDefault()
      }).ToArray();
    return result;
  }
}

And in controller call the method to get the result.

Reports reposrts = new Reports();
var result = reposrts.GetTransaction();

..

foreach (var test in result)
{
     table.AddCell(test.modelNo);
}

Then

Error   1   'object' does not contain a definition for 'modelNo' and no extension method 'modelNo' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?)

So,

I move the model method into controller method (put all together in same method) and run. then it works!.

but the result be used in the other controller too. so I want to keep the result in Model class to reuse.

I want to know why it does not work if the result query is not in same method.

could you help me a little more please?

Thank you very much!

Answer 1

‘result’ will be an array of the anonymous type you selected to, not an array of string arrays, which is why you are getting an error in the foreach loop.

Your loop should probably look more like the following:

foreach (var test in result)  
{ 
    table.AddCell(test.modelNo);
    table.AddCell(test.mfgNo);
    table.AddCell(test.serialNo);
    // etc
} 

@Edit 2:

Because the result of GetTransaction() is ‘Array’, the calling method has no idea what the type is, it just sees it as an array of objects, and, because it is an anonymous type, you can’t (reasonably) cast it back to the expected type.

I think your best bet in this case would be to make a new class which has the properties you want to return, e.g.:

public class Transaction
{
    public string ModelNo { get; set; }
    public string MfgNo { get; set; }
    public string SerialNo { get; set; }
   // etc. - but with the correct types for the properties
}

Then change the linq query to select into this type, instead of the anonymous type, e.g.:

...
orderby o.processDate descending       
select new Transaction
{            
    ModelNo = x.modelNo,       
    MfgNo = p.mfgNo,       
    SerialNo = p.serialNo,
    // etc.
...

And change the return type of GetTransaction() from Array to Transaction[].