Hello,

Is it possible to declare a type of Record and use it to create a array of this type.

type
  // Declare a customer record
  TCustomer = Record
    firstName : string[20];
    lastName  : string[20];
    address1  : string[100];
    address2  : string[100];
    address3  : string[100];
    city      : string[20];
    postCode  : string[8];
  end;

var
  customers : array of TCustomer;

I don't believe there are records in EWB but you can just use a class

type
   TPersonRec = class
   public
     firstName:string;
     lastName:string;
     Age:integer;
     //other fields
   end;


and then
var
     arrCustomers : array of TPersonRec;

and then you could do something like

 SetLength(arrCustomers ,10);
 arrCustomers [0] := TPersonRec.Create;
 arrCustomers [0].firstName := 'John';
....

You can use it like this which would be closest to record or add some
actual properties and functions to the class and hide the implementation
completely from outside code.

Raul





On 8/27/2012 1:13 PM, Franck wrote:
> Hello,
>
> Is it possible to declare a type of Record and use it to create a array of this type.
>
> type
>     // Declare a customer record
>     TCustomer = Record
>       firstName : string[20];
>       lastName  : string[20];
>       address1  : string[100];
>       address2  : string[100];
>       address3  : string[100];
>       city      : string[20];
>       postCode  : string[8];
>     end;
>
>   var
>     customers : array of TCustomer;
>

Franck,

<< Is it possible to declare a type of Record and use it to create a array
of this type. >>

No, you have to use a class instead, like this:

type
  // Declare a customer record
  TCustomer = class
    firstName : string[20];
    lastName  : string[20];
    address1  : string[100];
    address2  : string[100];
    address3  : string[100];
    city      : string[20];
    postCode  : string[8];
  public
    // properties that read/write the variables go here
  end;

var
  customers : array of TCustomer;

You'll have to make sure to create/dispose of the objects properly also.
You should probably consider using the TObjectList class for this - it will
be the easiest way of dealing with such a list:

http://www.elevatesoft.com/manual?action=viewcomp&id=ewb1&comp=TObjectList

If you have any other questions, please let me know.

Tim Young
Elevate Software
www.elevatesoft.com

Hi,

Do you plan to add support of records in future version?

Yes, I know that we can use class, but use of records are much simplier. And our old code from Delphi uses records in many modules.

type
 TCustomer = Record
   firstName : string[20];
   lastName  : string[20];
 end;

Hi Aleksid1,

<< Do you plan to add support of records in future version?  >>

I use records extensively in Delphi but use TObjectList in EWB.  If I'm not mistaken, I believe Tim said on a previous occasion that the reason it hasn't been added is because Javascript doesn't have a record type.

- Steve

Hi Steve,

Thanks for your reply!

I thought that it's possible to emulate records in Javascript.