View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0005543||JEDI VCL||00 JVCL Components||public||2011-04-04 04:14||2011-09-21 14:10|
|Reporter||Dave Smith||Assigned To||AHUser|
|Target Version||Fixed in Version||3.45|
|Summary||0005543: JVCL338CompleteJCL201-Build3449 -JVDBGrid using official "good" BDE version 5.02.|
|Description||due to the following bug in BDE, reported in Delphi BDE Bug list:|
"Requesting the OldValue property of a Field throws an exception."
using an external inplace editor (combo DBLookup control), when I press ESCAPE to cancel editing, it throws exception: 'Not in cached update mode'. I have found the offending line of code in JVDBGrid.pas, and included some text from above web site, which I have verified as a problem above. It is always reproducible.
See included txt file for details.
|Tags||No tags attached.|
bug in JVDBGrid.pas (3,235 bytes)
||Please provide the zipped sources of a sample application showing this|
the project contains several custom components and would not compile on your system. I do not have time right now to dissect my custom controls out of the project and bundle it up for this request.
However, I applied the 2nd suggestion (below) in my source code, recompiled, and it fixed the problem:
Suggestion from "the Delphi Bug list":
Enclose the code that utilizes the OldValue property of a field in a try-except block
check if the 'State' property of the DataSet is dsEdit before attempting to get the OldValue of a field. <--- this worked good in my JVCL
||Fixed in svn revision 13062.|
|2011-04-04 04:14||Dave Smith||New Issue|
|2011-04-04 04:14||Dave Smith||File Added: bug in JVDBGrid.pas|
|2011-06-07 17:51||obones||Note Added: 0018619|
|2011-06-07 17:51||obones||Status||new => feedback|
|2011-06-07 19:18||Dave Smith||Note Added: 0018644|
|2011-06-11 12:28||AHUser||Note Added: 0018741|
|2011-06-11 12:28||AHUser||Status||feedback => resolved|
|2011-06-11 12:28||AHUser||Fixed in Version||=> Daily / SVN|
|2011-06-11 12:28||AHUser||Resolution||open => fixed|
|2011-06-11 12:28||AHUser||Assigned To||=> AHUser|
|2011-09-21 14:10||obones||Fixed in Version||Daily / SVN => 3.45|