How to instantiate an object of .NET class, with List on C/AL?

Business Central/NAV Developers Forum
1

How to instantiate an object of VATEntry class, with Stock List on C/AL?

Please see below picture.

I want to put values from NAV into JSON string using below class. But How to put values into List?

3000.code.png
3000.code.png870×1032 17.7 KB

2

replace the List by an Array:

public Stock[] stocks {get; set; }

3

Thanks Jonathan,

But how can I use it on C/AL?

I want to put values into Stock of VATEntry

Regards,

Undy

4

please publish your c/al code.

5

Dear Jonathan,

Here are my C/AL code,

VAR

Bridge@1000 : DotNet “‘BridgePosAPI, Version=1.0.0.0, Culture=neutral, PublicKeyToken=3b00c861d26887ba’.BridgePosAPI.Class1”;

BridgeVAT@1001 : DotNet “‘ClassBridge, Version=1.0.0.0, Culture=neutral, PublicKeyToken=8bc2fa84bf3be36f’.ClassBridge.VATEntry” RUNONCLIENT;

BridgeStock@1002 : DotNet “‘ClassBridge, Version=1.0.0.0, Culture=neutral, PublicKeyToken=8bc2fa84bf3be36f’.ClassBridge.Stock” RUNONCLIENT;

StockList@1004 : DotNet “‘mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089’.System.Collections.Generic.List`1”;

JsonConvert@1003 : DotNet “‘Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed’.Newtonsoft.Json.JsonConvert” RUNONCLIENT;

MyString@1005 : Text;

element@1006 : DotNet “‘mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089’.System.Object”;

OnOpenPage=BEGIN

BridgeVAT:=BridgeVAT.VATEntry;

BridgeVAT.amount:=‘300.00’;

BridgeVAT.cashAmount:=‘100.00’;

BridgeVAT.nonCashAmount:=‘200.00’;

BridgeVAT.vat:=‘333.56’;

BridgeVAT.stocks:=StockList; //here must be instantiate a BridgeStock list

BridgeStock:=BridgeStock.Stock;

BridgeStock.code:=‘code1’;

BridgeStock.name:=‘name1’;

BridgeStock.measureUnit:=‘unit’;

BridgeStock.qty:=‘5’;

StockList:=StockList.List();

StockList.Add(BridgeStock.code);

StockList.Add(BridgeStock.name);

StockList.Add(BridgeStock.measureUnit);

StockList.Add(BridgeStock.qty);

FOREACH element IN StockList DO

BEGIN

BridgeVAT.stocks:=element; //here must be instantiate a BridgeStock list

END;

MyString:=JsonConvert.SerializeObject(BridgeVAT);

MESSAGE(’%1’,Bridge.put(MyString));

END;

When I run this page, it appears below error message.

8103.error.png

How can I instantiate BridgeStock list into object of class?

Best Regards,

Undy

6

Did you solve this issue? I’m facing the very similar issue now.

7

First try with one record alone… If it fails, enable the debugger and it will tell you what line is wrong.

Also notice can only work in Windows client (dotNET)

8

When I try to copy a List (DList) into a List variable (WSData.Details) under a different class I get the same error for all these 3 ways ( seperatley) :

  1. DList.CopyTo(WSData.Details)
  2. WSData.Details := DList
  3. WSData.Details(DList)
9

Compile Error? Windows Client error? Webclient error?

10

Windows Client error , the similar to issue on this page when I run te codeunit I get a simillar error

8103.error.png

11

I know that this is an old thread, however finding a solution to my own similar issue took some time, hence sharing in case so also needs this.

I think this works:

// Stocks: dotnet-array  : System.Array.'mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
// Type: dotnet - type:  System.Type.'mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'

BridgeVAT:=BridgeVAT.VATEntry;
 BridgeVAT.amount:='300.00';
 BridgeVAT.cashAmount:='100.00';
 BridgeVAT.nonCashAmount:='200.00';
 BridgeVAT.vat:='333.56';

//1 Create an array of stock

BridgeStock:=BridgeStock.Stock;
Stocks := Stocks.CreateInstance(GETDOTNETTYPE(BridgeStock),1);

//2- and for all Stock object:
// a- assign values of Stock:

 BridgeStock:=BridgeStock.Stock;
 BridgeStock.code:='code1';
 BridgeStock.name:='name1';
 BridgeStock.measureUnit:='unit';
 BridgeStock.qty:='5';

//b - and add it to array :
Stocks.SetValue(BridgeStock,0);

// 3-then assign this array into stocks property of BridgeVAT 

Type := GETDOTNETTYPE(BridgeVAT);
Type.GetProperty('stocks').SetValue(BridgeVAT,Stocks);