DataFlex 2021 Update Release Notes

DataFlex 2021, 20.0.7.159 contains the following changes from the original release (20.0.6):

Note: This topic updated on 7/18/2022

Security

Fixed - Under certain circumstances, web properties could experience cross-session contamination
Fixed - WebService operation XPath injection vulnerability

Runtime

Fixed - GPF on destroy RichEdit object
Fixed - ResponseHeader returns nothing (HTTP module)
Fixed - A division by zero results in a GPF
Fixed - cJsonObject JsonToDataType crashes on null to Variant
Fixed - The runtime was not properly using the embedded 'MS Sans Serif' font if it is not available on the host computer (it would crash instead)
Fixed - When using the embedded database, relationships based on numeric columns with mismatching lengths could cause a crash
Fixed - UCharArrayToString removes last null byte
Fixed - Overstrike removes character from string
Fixed - RightPos does not return the correct value
Fixed - Pos does not return the correct value

Web Framework

Fixed - UrlParameter of cWebHttpHandler crashes on empty parameter
Fixed - Menu classes do not cleanup on destroy (impacting dynamic objects)
Fixed - Compiling a cWebAppBasic application generated a compiler error
Fixes for WebBaseForm.js
Fixed - WebSet psMask before control is rendered failed
Fixed - cWebHttpHandler does not handle transfer-encoding chunked requests properly
Fixed - cWebList: LoadDataPage is not allowed by the target object

Windows Framework

Fixed - cSelectionSource; when collecting numbers we have an invalid boolean expression causing an infinite loop.
Fixed - cRichEdit writes urtf in the header of an .rtf file that created incompatibilities with other tools
Fixed - ComboForms containing extended characters (including all Unicode characters) can crash

Connectivity

Fixed - ParentNullAllowed fails with varchar relationship
Fixed - Crash on invalid relationship definition in .int file
Fixed - Trim varchar values during conversion to SQL leaves a single space on empty rows
Fixed - Moving a datetime with a PM value in it to a datetime (or datetime2) column, the fieldputstring loses the PM value and the stored date is AM
Fixed - Find errors on UniqueIdentifiers in MSSQL
Fixed - SQLGetArgument does not return values
Fixed - Changing the primary index value of row does not save the updated value
Fixed - Record locking was not working properly for MySQL, MariaDB and PostgreSQL
Fixed - If the index names defined in the <table>.int file do not match what is available at the server, the 20.x driver would crash instead of declaring the proper error
Implemented - To improve performance, when Max_Rows_Fetched is set in a <table>.int file, the PostgreSQL select statement will have a limit clause
Fixed - FindByRowID fails after Fill_Field

Language Translations

Fixed - Updated Portuguese language translations (some still in English and others improved)

Database Builder

Fixed- Did not read config.ws as UTF-8

DataFlex Reports Examples

Updated the Demo OCX to 8.0.1
Various miscellaneous changes to example reports and styles

Documentation

Updated various topics with clarifications, edits and additional links, including:

Class Reference

Updated Add_System_File doc
Fixed error in Child_Count sample code
Added link to pbReverseOrdering to Ordering doc
Added doc for

Fixed sample code in SQLPrepare

Language Reference

Added documentation for UCharToString
Updated AddressOf, changed type from Address to Pointer, added several See Also links
Marked Address command obsolete and added suggestion to replace it with Pointer and a link to Pointer
Updated various String Functions topics to add Code Points references where applicable
Updated DF_File_Table_Character_Format
Corrected text at bottom of SizeOfWString to use code points instead of characters.
Added note to WriteLn for writing Unicode files that are not UTF-8.
Added clarification of struct searches to SearchArray.
Corrected sample in DF_Index_Segment_Direction
Corrected RefTable use in sample in Read_Block
Misc. edits.

Language Guide

Marked Address type obsolete and added suggestion to replace it with Pointer and a link to Pointer

Studio

Changed the Studio Start Center to load content via https

Examples

Fixed - Error when trying to access DataFlex published web services in Web Services Client example
Fixed - RichEdit example in Specialized Components was missing icons in the toolbar

Activation

Evaluation and Personal licenses declare an error if the system clock is set back (used to just exit without any indication of the error condition)

Installers

Added Workstation Setup to the installers
Fixed - Client installer was missing Bin64\Styles
Fixed - Client installer should set DBAdminMode to OFF, not DBB
Fixed - Installers should launch the 64-bit Register.exe instead of the 32-bit version
Fixed - DFPath and SystemDFPath need to match when using Network install
Fixed - Register My License button doesn't open Register.exe on Win32 machines