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Posted: **Wed 16 May 2018 09:52**

Hello,

I am using UniDAC version 7.2.7 for Delphi XE5 Professional.

I need to create fields of type Variant in the component TVirtualTable:

Code: Select all

  VirtualTable1.FieldDefs.Add('id', ftVariant);
  VirtualTable1.FieldDefs.Add('name', ftVariant);

However, when I access them by property AsVariant, I get error: Access violation...:

Code: Select all

  VirtualTable1.Append;
  VirtualTable1.FieldByName('id').AsVariant := '1';
  VirtualTable1.FieldByName('name').AsVariant := 'String 1';
  VirtualTable1.Post;

Property AsString is works.

Code: Select all

  VirtualTable1.Append;
  VirtualTable1.FieldByName('id').AsString := '1';
  VirtualTable1.FieldByName('name').AsString := 'String 1';
  VirtualTable1.Post;

How can I use the AsVariant property?
Thank you very much.

Sergey.

Posted: **Wed 16 May 2018 21:39**

Hello,

That should be

Code: Select all

VirtualTable1.FieldByName('name').Value := 'String 1';

Posted: **Thu 17 May 2018 03:11**

Hello,

VirtualTable1.FieldByName('name').Value := 'String 1';

Did not help.

Posted: **Thu 17 May 2018 13:10**

Thank you for the information. We have reproduced the problem and fixed the bug. The fix will be included in the next UniDAC build. Currently, we can send you a night build of UniDAC with the fix. For this, please specify your license number and the exact version of Delphi you are using via the e-support form ( https://www.devart.com the "Support"\"Request Support" menu)

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