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Revision 139 by tony, Wed Jan 24 16:16:29 2018 UTC

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1 + IBX Change Log  version                                             (2.2-0) Tue, 23 Jan 2018 11:23:09 +0000
2 +
3 + 1. IBExtract: Identity columns - add additional check for null column for generator name.
4 +
5 + 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
6 +   The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
7 +   information). However, this is also a very useful mechanism for returning updated computed by
8 +   column values. Values returned as a result of executing an Insert or Update statement
9 +   replace existing values in the current row for each corresponding column.
10 +
11 +   Previously, if a dataset's select query included read only (computed by) fields then
12 +   an automatic row refresh was performed after an insert or update query had been processed,
13 +   irrespective of the setting of the "ForcedUpdates" property. This has changed such
14 +   that an automatic refresh is no longer performed if an insert or update query contains
15 +   a returning clause that updates one or more fields on the current row. A full row
16 +   refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
17 +   field values and the select query contains read only fields. Use of Insert/update
18 +   returning should be significantly more efficient than executing a refresh query.
19 +
20 +   This behaviour change is intended to be backwards compatible and there should be no need to change
21 +   existing programs, other than to improve performance by using the new capability.
22 +
23 + 3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
24 +   they are called when the dataset row is being deleted, there is no value in
25 +   updating the current record from the query result. Instead, a new event handler
26 +   "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
27 +   an OnDeleteReturning event handler is provided then it is called with the IResults returned
28 +   by the query. The event handler can then interrogate the query results and
29 +   perform whatever action is necessary. For example to confirm, to the user,
30 +   the deletion of a row with the returned values.
31 +
32 + 4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
33 +   any Computed By or Identity Columns. The IBTables example has been updated to
34 +   illustrate the computation of the employee Full Name on update.
35 +
36 + 5. TIBTable: The GeneratorField property is now published.
37 +
38 + 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
39 +   When InsertSQL is generated, the Identity columns are not included in the list of values to
40 +   be inserted. A RETURNING clause is added to the insert statement to return the value of
41 +   each Identity column after the insert is executed.
42 +
43 + 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
44 +   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
45 +   Insert..Returning clause.
46 +
47 + 8. TIBGenerator: small performance improvement by not preparing query each time
48 +   a new value is generated.
49 +
50 + 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
51 +
52 + 10. Property editors will now sync table name to a System Table when "Include System
53 +    Tables" is selected and the query is for a System Table.
54 +
55 + 11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
56 +    values are no longer converted to milliseconds from TDateTime and then back again
57 +    to TDateTime (the conversion to milliseconds is the default TDataset approach).
58 +
59 + 12. Property Editors handling of Stored Procedures.
60 +    * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
61 +      which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
62 +      query).
63 +    * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
64 +
65 + 13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
66 +    can be used to select a package. If non-empty, the stored procedure name is
67 +    expected to be a stored procedure defined in the specified package and the
68 +    generated SQL will be as required for a stored procedure located in a package.
69 +
70 + 14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
71 +    a "Package Name" drop down box to allow selection of a Firebird 3 Package from
72 +    which a stored procedure can be selected. With no package name selected, non-package
73 +    stored procedures are listed.
74 +
75 + 15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
76 +    for password on reconnect.
77 +
78 + 16. IBDatabase: use IAttachment for connection default character set id, code page
79 +    and character set name.
80 +
81 + 17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
82 +    DB info lookups"
83 +
84 + 18. IBExtract: now supports DDL Triggers.
85 +
86 + 19. Add a property Editor for TIBUpdate.RefreshSQL.
87 +
88 + 20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
89 +    parameters. This stops an exception being raised when the field cannot be
90 +    located in the record buffer.
91 +
92 +
93 + IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
94 +
95 + 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
96 +   changes.
97 +
98 + 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
99 +   Bug could result in truncated multi-byte character set values.
100 +
101 + 3. Changes consequential on moving fbintf character set utility functions from
102 +   IFirebirdAPI to IAttachment.
103 +
104 + 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
105 +
106 + 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
107 +   results in autocomplete ignoring prefix text.
108 +
109 + 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
110 +   entering a new name into the text box.
111 +
112 + 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
113 +   Firebird rather than recomputing it.
114 +
115 + 8. Property Editor positioning tidy up: All IBX Property editors should now be
116 +   screen centre. Previously some were "poDesigned" which may be inappropriate
117 +   for multi monitor desktops.
118 +
119 + 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
120 +
121 + 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
122 +    a transaction and always reset the object.
123 +
124 + 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
125 +
126 + 13. TIBXScript: Allow for override of database filename in Create Database statements.
127 +
128 + 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
129 +    to a gbak format archive.
130 +
131 + 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
132 +
133 + 16. IBLocaldb: Drop database if error creating an empty database.
134 +
135 + 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
136 +    unless selected node not in current dataset.
137 +
138 + 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
139 +    to TIBCustomService, and IBlocalDB code tidy up.
140 +
141 + 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
142 +    behaviour due to uninitialised variable.
143 +
144 + 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
145 +    integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
146 +
147 + 21. IBSQL: When Database changed ensure that all resources are freed.
148 +
149 + 22. IBCustomDataset: When database changed ensure that queries an unprepared.
150 +
151 + 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
152 +    * Line Wrap on SQL Token boundaries (on user command)
153 +    * auto-complete table names in drop down list of table names
154 +    * Double click on tablename or field name adds to SQL text
155 +
156 + 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
157 +
158 + 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
159 +    TVariantArray. Seems to avoid memory corruption in Windows (probably a
160 +    workaround for a problem in fpc 3.0.4 win64).
161 +
162 + 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
163 +
164 + 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
165 +
166 + IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
167 +
168 + 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
169 +   include remote system name.
170 +
171 + 2. TIBExtract: No longer include comment header and COMMIT statement for empty
172 +   tables when data included in output.
173 +
174 + 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
175 +   and timing information to be written to stdout. This may be used to locate
176 +   performance bottlenecks.
177 +
178 + 4. SQLParser: only call "OnChanging" event handler when value is different.
179 +
180 + 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
181 +
182 + 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
183 +   that BindFields is called when the query is next activated. Avoids FieldName
184 +   not found error.
185 +
186 + 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
187 +   purpose and allows the programmer to define any action they want for Update, Insert
188 +   or Delete. This may be complex SQL (similar to a Trigger), application specific
189 +   filtering of updates, or use of statements such as Grant or Revoke instead of
190 +   normal DML. See User Manual for more information.
191 +
192 + IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
193 +
194 + 1. TIBEvents: Fix uninitialised variable that could result in lost events.
195 +
196 + 2. TIBExtract: Added support for FB3 "USAGE" privilege.
197 +
198 + 3. TIBExtract: data formatted as Charset set "octets" is now output using
199 +   hexadecimal notation.
200 +
201 + 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
202 +   using a simple XML format.
203 +
204 + 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
205 +   grants to these objects.
206 +
207 + 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
208 +   dependency problems restoring complex databases.
209 +
210 + 7. TIBXScript: This component has been restructured to allow for the processing of
211 +   embedded XML in INSERT statements and to support interactive sources in addition
212 +   to non-interactive data sources such as files.
213 +
214 + 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
215 +
216 + 9. TIBXScript: ISQL compatiable Set statements are now supported:
217 +   SET SQL DIALECT
218 +   SET TERM
219 +   SET AUTODDL
220 +   SET BAIL
221 +   SET ECHO
222 +   SET COUNT
223 +   SET STATS
224 +   SET NAMES <character set>
225 +
226 + 10. IBVersion unit added to hold current IBX Version Number information.
227 +
228 + 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
229 +    and domain definitions.
230 +
231 + 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
232 +    fully supported.
233 +
234 + 13. TIBExtract: when a database dump includes data, the generator values are now also set.
235 +
236 + 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
237 +
238 + IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
239 +
240 + See also doc/IBX4LazarusGuide.pdf for important information on
241 + upgrading to IBX2.
242 +
243 + 1. Size property of TIBStringField is now the width in characters of the field
244 +   and not the byte length. This applies only to multi-byte character sets such
245 +   as UTF8. The original approach aligned with TStringField. However, the TStringField
246 +   code is not recognised as a bug and hence this change to align the behaviour.
247 +   The TStringField change is expected in fpc 3.2.0.
248 +
249 + 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
250 +   true (default) then Size property value saved in the lfm is ignored. Size is
251 +   always set from the dynamic information read from the database. It is unclear
252 +   why anyone would want to override this and set Size to false.
253 +
254 + 3. ibxscript: should now handle correctly a Case..End statement within a procedure
255 +   block.
256 +
257 + 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
258 +   exist when an attempt is made to connect to it (run time only) then an attempt
259 +   is made to create the database.
260 +
261 + 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
262 +   has been successfully created as a result of a call to CreateDatabase or when
263 +   creating a database after it was found not to exist.
264 +
265 + 6.  DBControlGrid: a race condition could result in the wrong row image being
266 +    written to the cache. This has been avoided by a trip round the message
267 +    loop before rendering the row image.
268 +
269 + 7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
270 +    a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
271 +    known to risk corrupt rendering of row images when the control is first
272 +    displayed. If necessary use "Application.QueueAsyncCall" to delay opening
273 +    of the dataset (see DBControlGrid examples) until the Form's Window has been created.
274 +
275 + 8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
276 +    a TDateEdit control located on an editor panel.
277 +
278 + 9.  TIBExtract: brought up-to-date plus many bug fixes.
279 +
280 + 10. DBControlGrid: Removed memory leak when updating rows.
281 +
282 + 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
283 +
284 + IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
285 +
286 + 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
287 +   when target codepage is CP_NONE. This is a workaround for
288 +   http://bugs.freepascal.org/view.php?id=30622.
289 +
290 + 2. DBLog option removed from TIBStatisticalService - not supported by server
291 +   since Firebird 1.5.
292 +
293 + 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
294 +   similar.
295 +
296 + 4. IBCodePage: updated mapping between codepages and character id.
297 +
298 + 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
299 +   Firebird. Character sets with a char width of two are not UTF16.
300 +
301 + 6. Strings received from the database are now always transliterated into UTF8
302 +   regardless of the database character set or connection character set. This
303 +   is for compatibility with the LCL.
304 +
305 + IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
306 +
307 + 1. IBBlob: Defer reading of blob until read method called. This avoids having to
308 +   read in an entire blob just to get the size of the blob. General performance
309 +   improvement when opening datasets containing blobs.
310 +
311 + 2. Clearing a  Blob now sets the corresponding field's modified flag.
312 +
313 + 3. IBLookupCombo: When not performing auto-complete, original query sort order
314 +   is now used.
315 +
316 + 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
317 +   determined.
318 +
319 + 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
320 +
321 + 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
322 +   lazarus 1.6.0
323 +
324 + 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
325 +   compilation error.
326 +
327 + IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
328 +
329 + 1. No character set specified for connection: when a text blob is retrieved, the
330 +  character set is determined by looking up the native character set using then
331 +  Firebird API. Otherwise a text mode blob is assumed to have the same character
332 +  set as the connection.
333 +
334 + 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
335 +   for Login Dialog returing a change to the database path.
336 +
337 + 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
338 +   to be changed from that given in the TIBDatabase/TIBServer component and for the
339 +   entered value to be saved on a project specific basis (design time only).
340 +
341 + 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
342 +   column fieldname. If they are the same then it is acts as a look up for the KeyValue
343 +   Otherwise, it sets the column text to the selected ListField Value.
344 +
345 + 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
346 +   column width.
347 +
348 + 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
349 +   and a case insensitive search is requested.
350 +
351 + 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
352 +   or column ListSource.
353 +
354 + 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
355 +   unprepare) when closing and the text has not changed.
356 +
357 + 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
358 +   Less likely to cause a cursor re-use error on Windows.
359 +
360 + 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
361 +   Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
362 +
363 + 11. TIBTreeView: Guard against nil destination on record changed
364 +
365 + 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
366 +    string type with the code page set to reflect the returned field encoding after
367 +    Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
368 +    earlier versions.
369 +
370 + 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
371 +    will now result in transliteration to the code page specified for the Firebird driver
372 +    if the assigned string has a different code page. FPC 3.0.0 onwards only.
373 +
374 + 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
375 +    is ignored and the lc_ctype value, when the database is opened, is set to align with
376 +    the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
377 +    platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
378 +    3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
379 +    the GETACP is used to determine the Windows code page.
380 +
381 + 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
382 +    name used as the lc_ctype when the database was opened. Only valid while the
383 +    Database is connected.
384 +
385 + 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
386 +    id that corresponds to the DefaultCharSetName.
387 +
388 + IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
389 +
390 + 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
391 +   path is given and database attach fails due to access permission issues on the
392 +   temp directory or security database, then the attach is retried with "localhost:"
393 +   prefixing the databasename. This should avoid problems when the database has to
394 +   be accessed by a local (e.g. classic) server and libfbembed is used.
395 +
396 + 2. Windows: revised search order for Firebird DLL:
397 +     i.   The Firebird Embedded Server in the application Directory.
398 +     ii.  If the FIREBIRD environment variable is set then the directory this
399 +          points to is searched for the FB Client DLL and then then underlying
400 +          "bin" directory.
401 +     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
402 +          is used to locate the Firebird installation directory and the underlying
403 +          "bin" directory is searched for the FB Client DLL.
404 +     iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
405 +          are searched for the FB Client DLL.
406 +     v.   The PATH Environment variable is used to search for the FB Client DLL.
407 +     vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
408 +
409 + 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
410 +   See doc/readme.scriptengine and example applications.
411 +
412 + 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
413 +   simplify the use of the embedded firebird server on both Linux and Windows platforms.
414 +   See dpc/readme.localdatabase and example applications.
415 +
416 + 5. IBDynamicGrid: Reordering on column header click should now also work for
417 +   dynamic columns.
418 +
419 + 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
420 +   between incrementing/decrementing the lock count and signalling the event.
421 +
422 + IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
423 +
424 + 1.3.2 was never formally released and only made available as beta copies.
425 +
426 + 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
427 +
428 + 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
429 +
430 + 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
431 +
432 + 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
433 +   i.e. when it is a calculated field
434 +
435 + 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
436 +   This problem was due to a race condition between recalculating row heights and
437 +   determining which row was selected by the mouse click. The row height calculation
438 +   is now deferred by an extra trip round the message loop allowing the row to
439 +   be always calculated on the current grid layout rather than risking it being
440 +   calculated on the grid layout after the expanded row has been shrunk.
441 +
442 + 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
443 +   Windows.
444 +
445 + 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
446 +   These properties allow the (Firebird) character set name for the field and the max number of bytes per character
447 +   to be determined at runtime. See doc/readme.charactersets.html.
448 +
449 + 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
450 +   TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
451 +
452 + 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
453 +   TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
454 +   1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
455 +
456 +   Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
457 +   from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
458 +   implies no truncation.
459 +
460 + 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
461 +
462 + 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
463 +   (avoids "Not in Edit Mode" error).
464 +
465 + 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
466 +
467 + 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
468 +    DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
469 +
470 + 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
471 +
472 + 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
473 +
474 + 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
475 +
476 + 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
477 +
478   IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
479  
480   1.   OnCloseUp Event Handler added to TDBLookupProperties

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