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Lars Fosdal

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Everything posted by Lars Fosdal

  1. Lars Fosdal
    Or, a lack of established conventions - or - as for xml, an endless series of abuse 😛
  2. Lars Fosdal
    @Kryvich Do you know of any good examples of custom reverters? I am only going to consume these structures, not produce them - so that simplifies it a bit. Basically, I'd love to be able to transform the inner array elements to a single object, as there is only a limited number of permutations.
  3. Lars Fosdal
    Indeed. This structure was probably designed by someone that is not loading objects, but who just walks the structures with a weakly typed language.
  4. Lars Fosdal
    So - what happens to { "switch": true } in an array of array of variant?
  5. Lars Fosdal
    Crickets....
  6. Lars Fosdal
    Is there a way access TCustomAttribute values on individual enumerated values? type TLevel = ( [Tx('First')] one, [Tx('Second')] two, [Tx('Third')] three );
  7. Lars Fosdal

    RTTI, enumerated value and TCustomAttribute?

    Lars Fosdal replied to Lars Fosdal's topic in RTL and Delphi Object Pascal

    It does allow the syntax, though - so perhaps someone had it planned, once upon a time.
  8. Lars Fosdal
    Is there a way to use RTTI for records to allow walking public consts and types to extract names and values? Asking for a friend 😛 - kidding ... I'm try to produce documentation of certain structures at run time, and would like to do something like TDocBuilder.WalkRecordType<html>. type html = record type TRow = TArray<string>; public const LineBreak = '<BR />'; nbsp = ' '; lt = '<'; gt = '>'; DivEnd = '</div>'; public type divStyleDefault = record public const info = 'info'; book = 'book'; chapter = 'chapter'; section = 'section'; detail = 'detail'; example = 'example'; jsoncode = 'jsoncode'; end; divStyleDebug = record public const info = 'debuginfo'; book = 'debugbook'; chapter = 'debugchapter'; section = 'debugsection'; detail = 'debugdetail'; example = 'debugexample'; jsoncode = 'debugjsoncode'; end; {$ifdef debug} divStyle = divStyleDebug; {$else} divStyle = divStyleDefault; {$endif} end;
  9. Lars Fosdal

    RTTI and record consts?

    Lars Fosdal replied to Lars Fosdal's topic in RTL and Delphi Object Pascal

    It's too complex for that, as the variations are many and loosely coupled. It means I will have to handcraft more info manually.
  10. Lars Fosdal
    Consider type TSomeType = (One, Two Three); TSomeTypeHelper = record helper for TSomeType class function Values: TArray<string>; end; Can I use RTTI to find the record helper type for TSomeType and the Values function? Reason: I'd like to call Values - which would be a naming convention (since record helpers can't be inherited or generic) - for any type that has a record helper with a class function named Values.
  11. Lars Fosdal

    What does TDataSet.CopyFields do?

    Lars Fosdal replied to dummzeuch's topic in Databases

    Intuitively (i.e. also guessing 😛), I would tend to believe that DestDs tries to look up fields that exists in it's own structure , by name from SrcDs, and copy the value of such fields?
  12. Lars Fosdal

    GetIt: missing all the TurboPower component

    Lars Fosdal replied to gkobler's topic in Delphi IDE and APIs

    The Fastreport VCL compos installed, but my project doesn't find the files in Rio. Haven't had time to delve into why.
  13. Lars Fosdal

    Unresponsive IDE and massive memory leaks with RIO

    Lars Fosdal replied to Stéphane Wierzbicki's topic in Delphi IDE and APIs

    FWIW: I had Berlin 10.1.3 and Tokyo 10.2.2 installed, before installing Rio - all installed with their respective Web installers. I did have betas for Berlin and Tokyo, but not for Rio (never had time to spare). I have the same registry settings that Uwe shows for 24, 25 and 26 - with 26 being the "current". 64-bit Windows. PS C:\> Get-ComputerInfo | select WindowsProductName, WindowsVersion, OsHardwareAbstractionLayer WindowsProductName WindowsVersion OsHardwareAbstractionLayer ------------------ -------------- -------------------------- Windows 10 Enterprise 1709 10.0.16299.371
  14. Lars Fosdal

    Unresponsive IDE and massive memory leaks with RIO

    Lars Fosdal replied to Stéphane Wierzbicki's topic in Delphi IDE and APIs

    I disabled theming, and the UI became quite a bit more responsive.
  15. Lars Fosdal

    Unresponsive IDE and massive memory leaks with RIO

    Lars Fosdal replied to Stéphane Wierzbicki's topic in Delphi IDE and APIs

    My first impression is that the Rio IDE is sluggish. Resizing the frame of the IDE from left border is jumpy as heck (Single 4K display).
  16. Lars Fosdal

    Delphi 10.3

    Lars Fosdal replied to Kryvich's topic in Community Management

    @Daniel - u fix?
  17. Lars Fosdal
    I wonder, would it be nice to channel posts on QP issues to a specific sub-forum? f.x. "Delphi Bugs & Issues" Sub-titled "Reported to QualityPortal" We do get a certain amount of these, particularly around new releases.
  18. Lars Fosdal
    I use RTTI extensively, so turning it off would have undesirable effects, I wish there was a simpler way to enable/disable it for specific inheritance trees, though.
  19. Lars Fosdal

    Delphi Bugs reported to QualityPortal

    Lars Fosdal replied to Lars Fosdal's topic in Community Management

    I wasn't really thinking of the complete list, just a place for DP members to post reports they have made or discovered.
  20. Lars Fosdal

    General DB access question -- paging query results

    Lars Fosdal replied to David Schwartz's topic in Databases

    We use the ApexSQL tools (https://www.apexsql.com/). Diff and DataDiff are very flexible and powerful, although ApexSQL from time to time redo their UIs with varying success - probably when upgrading their MSVS 😛
  21. Lars Fosdal

    General DB access question -- paging query results

    Lars Fosdal replied to David Schwartz's topic in Databases

    Thank you, @Dmitry Arefiev! It seems I have to withdraw that critical statement and explore the FireDAC options again. How did you prime the FDQuery for that specific result? We have a mix of 2008, 2012, 2016 and 2017 servers, so we are still held back by the 2008. I will have to push for an upgrade of the handful of 2008 servers still remaining.
  22. Lars Fosdal

    General DB access question -- paging query results

    Lars Fosdal replied to David Schwartz's topic in Databases

    How does the generated SQL look for retrieving the top 100 results at row 19.900 for SQL Server?
  23. Lars Fosdal

    Delphi Bugs reported to QualityPortal

    Lars Fosdal replied to Lars Fosdal's topic in Community Management

    Depends on the severity, but we could see it as a source for future unit tests 😛
  24. Lars Fosdal

    Delphi Bugs reported to QualityPortal

    Lars Fosdal replied to Lars Fosdal's topic in Community Management

    Well, yeah... but who logs in there daily? It would be nice to get a heads up on new reports.
  25. Lars Fosdal
    I want to recursively walk the properties of MyVar: TMyOuterType - but the Items list may be empty. How can I walk the base element type of Items, i.e. TMyType - when I have no instance data? type TMyType = class public property One: string; property Two: string; end; TMyType2 = class(TMyType) public property Two: string; end; TMyType3 = class(TMyType2) public property Three: string; end; TMyTypeArray = TArray<TMyType>; // i.e. polymorphic TMyOuterType = class public property Items: TMyTypeArray; end; var MyVar: TMyOuterType;
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