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- Enhancements from version 1.21
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- Improvements to the final dBASE programs and in DPSORTP.PRG.
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- 1. Vertical and Horizontal Menu Bars now about 3-4 times faster.
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- 2. Bug which caused Vertical Menu to display an "one-too-far" choice
- relative to the Menu letter pressed, now fixed; in particular, when the
- last option letter was pressed, this off-by-one caused a program crash
- since there was no existing prompt line to land on.
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- 3. All Selection criteria and Filter expressions now undergo validity
- checks upon user-entry
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- 4. Update mode is now flagged and prohibited whenever the file in question
- is empty (at file creation, or after a PACK of a totally DELEted file,
- for example)
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- 5. Sort Def. Field Selection
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- A. The Fields on DPSORT.DBF had inconsistent spelling (SORTF07 instead
- of SORTFO7); this led to program crash when more than 2 Sort Fields
- were specified. Fixed in program and on DPSORT.DBF. Use dBASE program
- included in this update SORTFIX.PRG to convert your current
- DPSORT.DBF to compatibility with the new system while retaining your
- Sort Definition data
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- B. All Sort Fields in Sort/Selection screen are now checked for
- existence in the host database. Also, the entry of these Sort Fields
- is further assisted by an automatic "scan mode" which allows user-
- selection from the Fields in the host database
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- C. The Sort Fields are also validated prior to usage of any Sort
- Definition for Report, Label, or MailMerge purposes. This heads off
- the problem of the host .DBF structure being changed after the Sort
- Def. was created, thus possibly invalidating the contents of said
- Sort Def.
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- 6. Duplicate Sort Definition-names are now flagged and not permitted.
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- 7. Message was added to announce proper Word Processor formats in case of
- user-entry-error ("WORDSTAR", "MSWORD")
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- 8. In Find mode, both in host databases and Sort Def. mode, had slight flaw
- in "not found" messages.
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- 9. READS used as WAITs in final dBASE code are ineffective for this purpose
- when in CLIPPER mode; they were replaced by a "WAI" waiting and message
- module.
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- 10.At this time, (to be changed soon) the CLIPPER and "old" DB3 modes must
- and do use special @ SAY,GET screens for menus and user screens.
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- Improvements/changes to dPROG:
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- 1. Insert/Delete had bug which caused the screen to not show effects of
- Ins/Del on Fields right of the Lock Col; these Fields should not have
- been thusly affected. This caused difference between these Fields'
- screen location and their internal coordinates. Bug fixed.
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- 2. RULER Line shielded from any contact with cursor; cursor movement jumps
- over the RULER, and no chars may be typed over it.
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- 3. RULER now "blinks" at Lock Col. location. This is updated automatically
- if the RULER is on and you happen to reset the Lock Col.
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- 4. Line Insert/Delete only when RULER OFF
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- 5. Insert/Delete of characters or whole lines which would result in losing
- any Field, now requires user-confirmation
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- 6. Insert/Delete now works on either side of the Lock Col., thus providing
- a form of vertical "split-screen" capability
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- 7. Chars/Fields on Lock Col protected from Del/Ins; formerly, the
- protection began 1 to the right of the Lock Col. This was done so that
- Col 80 could be effectively protected without having to Lock 79.
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- 8. Special chars now cannot be placed on a Field
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- 9. Lock Col cannot be declared on any character of a Field (except the 1st)
- on any given line; when you move to another line, if the Lock Col is
- presently on a Field, Ins/Del may require changing the Lock Col.
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- 10.PAINT Color Selection had bug which did not flag nunbers out of 0 - 255
- range; also, the retention of the current COLOR setting upon hitting
- <RETURN> was sporadic. Bug fixed.
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- Comments on Version 1.31
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- USER DOCUMENTATION:
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- New "%REPLACE()" function added for use in "Calculation" part of dPROG
- Field Definition. The syntax is:
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- %REPLACE(<lookup field>, <alt. DBF>, <alt. NDX>, <data source field>)
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- where:
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- <lookup field> is the field in the host screen containing the
- lookup data;
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- <alternate DBF> is the external database containing the field
- holding the data we want to retrieve;
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- <alternate NDX> is the index file to be used for the alternate
- database during the lookup;
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- <data source field> is the field in the alternate database
- which contains the replacement data.
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- Example:
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- Assume we are in dPROG, editing a screen called MAILEM using a
- database called MAILEM. One of our MAILEM Fields is STATE,
- and another is STNAME (State abbreviation and State name,
- respectively). We want the user to be able to enter a State
- abbreviation, and then have the abbreviation used to lookup, in
- a database named STATE, this abbreviation, and then pull out the
- corresponding State name (STNAME) and place this State name into
- the MAILEM Field STNAME automatically. To accomplish this in
- dPROG, use F6 to edit Field Definition for our MAILEM Field STNAME.
- Go down to the Calculation box and enter the following expression:
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- %REPLACE(STATE,STATE,STATE,STNAME)
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- which would cause MAILEM Field STATE to be used in a search
- of STATE.DBF using index STATE.NDX (or NTX), and accessing STATE.DBF
- Field STNAME, returning the data to our host Field STNAME in
- screen MAILEM.
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- This replacement only occurs if the lookup is successful; if
- the lookup Field is not found in the alternate database, no
- replacement is made, and if the Field is defined as either "File"
- or "0" thru "9" (index Field), then upon lookup failure the user is
- prompted to manually enter the data for the host Field.
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- NOTE!!! The search is conducted on the TRIM of the lookup field.
- The result is returned for the length of the receiving
- field.
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