View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0006151 | JEDI VCL | 00 JVCL Components | public | 2013-06-17 09:47 | 2015-09-14 13:20 |
| Reporter | rwasowski | Assigned To | AHUser | ||
| Priority | normal | Severity | major | Reproducibility | always |
| Status | resolved | Resolution | fixed | ||
| Product Version | 3.46 | ||||
| Target Version | Fixed in Version | 3.48 | |||
| Summary | 0006151: TJvMemoryDataSet - GoToBookmark doesn't work | ||||
| Description | Hi, Delphi XE3 (32 bit). GoToBookmark on TJvMemoryDataSet doesn't work fine. Error is full reproducibility. When I get bookmark from dataset this information are not valid for method GoToBookmark and nothing happens on dataset. I don't get any error. Indicator on (ex. DBGrid) is on the same place. Example app in attachment. Thanks for help. | ||||
| Additional Information | I've debugged JvMemoryDataset.pas It seems that problem is in procedure TJvMemoryData.InternalGotoBookmarkData(BookmarkData: TJvBookmarkData); more precisely: Rec := FindRecordID(BookmarkData); | ||||
| Tags | No tags attached. | ||||
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2013-06-17 09:47
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JvMemoryDataSetTest.zip (83,185 bytes) |
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Can you switch to some other table like TClientDataSet ? |
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Perhaps I could, but I use TJvMemoryDataSet in many places of my application with or without using Bookmarks. |
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I was a long-time user of RxLib and by inheritance of JVCL. I think RxMemoryDataset was among first freeware BDE-less in-memory tables for Delphi. Still... over time it turns to be a very spaghetti code. After i found that sometimes it occasionally may create new empty rows... i given up. I think unless there would be someone would clean it and re-implement it (would you, by the way?) it should alas be considered obsolete. |
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check if 0006163 would help you |
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Thanks for hint. I'll try it tomorrow and give you replay. About re-implement - I can try but I can not say when I'd finished. By the way, an interesting challenge :) |
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Personally i don't feel there is any reason to do because 1) there is CDS which usually works 2) there are hi-level containers like TDictionary<T,U> both stock and 3rd-party 3) there are SQL databases like Firebird Embedded, SQLite or NexusDB (or kbMemSQL ;-) ) 4) there is AnyDAC memory table, which is FireDAC and part of XE4 Enterprise now 5) Torry.net would show you yet more in-memory tables If you really want to re-implement something - then revive hmmm... TObjectDataset?.. there was a runtime component turning array of {TObject} into a table, based on object's type RTTI Also http://www.carterconsulting.org.uk/keephold.htm |
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Fixed in master branch. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2013-06-17 09:47 | rwasowski | New Issue | |
| 2013-06-17 09:47 | rwasowski | File Added: JvMemoryDataSetTest.zip | |
| 2013-07-08 11:37 | Arioch | Note Added: 0020561 | |
| 2013-07-09 10:08 | rwasowski | Note Added: 0020564 | |
| 2013-07-09 11:43 | Arioch | Note Added: 0020565 | |
| 2013-07-09 11:43 | Arioch | Note Edited: 0020565 | |
| 2013-07-10 11:57 | Arioch | Note Added: 0020566 | |
| 2013-07-10 13:10 | rwasowski | Note Added: 0020567 | |
| 2013-07-10 13:33 | Arioch | Note Added: 0020568 | |
| 2013-07-11 20:06 | AHUser | Note Added: 0020571 | |
| 2013-07-11 20:06 | AHUser | Status | new => resolved |
| 2013-07-11 20:06 | AHUser | Fixed in Version | => Daily / SVN |
| 2013-07-11 20:06 | AHUser | Resolution | open => fixed |
| 2013-07-11 20:06 | AHUser | Assigned To | => AHUser |
| 2015-09-14 13:20 | obones | Fixed in Version | Daily / GIT => 3.48 |
