VirtualDataset for accessing i.e. tObjectList or tArray of Records

BIZ BIZ Feature Requests
1

Hi guys,

do we have a component or functionality in TMS for creating a Custom Dataset for accessing tobjectlist, tArray of Records or other informations from a Dataset?

2

Wouldn't that be TAureliusDataset? Is there something in it you miss regarding what you asked for?

3

So i missed something. I'm not aware of tAureliusDataset - will check this now. Thanks Wagner.

Is there a demo how to bind tAureliusDataset to a tObjectList or a tArray of Records?
I don't want to create something like a MemoryTable where i load the Table with data. It should access the tObjectlist or the tArray in realtime so we can connect it in simpliest way to a dbgrid as an example to edit / view data.

4

Sure, you just use AureliusDataset.SetSourceList(MyObjectList) and it should work.

I suggest you look at the docs first:

https://doc.tmssoftware.com/biz/aurelius/guide/taureliusdataset.html

5

Your example is very good, but I encountered an issue due to the structure of my data. My list is structured as follows:

mydata = record
  name: string;
  value: variant;
end;

mydataROW = record
  fields: tarray<mydata>;
end;

myObject = class
  records: tarray<mydataROW>;
end;

This example simplifies my actual, more complex structure. I do not have any static fields or properties; instead, my structure resembles the one above.

Is there a getter or setter event in tAureliusDataset that allows us to create the records and the fields based on the given structure?

6

Unfortunately records are not supported by TAureliusDataset. Only objects (class instances).

7

The example was only to show how the connection between those "Objects" is. the records could be also classes

8

TAureliusDataset works well with list of objects (TList), but arrays are not supported.

9

What if we change the declarations as follows:

mydataFIELDS = class
  name: string;
  value: variant;
end;

mydataROW = class
  fields: tlist<mydataFIELDS>;
end;

myObject = class
  records: tlist<mydataROW>;
end;

Can we use this with tAureliusDataset?

10

You should, yes. I also suggest you just try it.