These concise, runnable examples cover common VFP tasks: tables, indexing, SQL joins, forms, reports, automation, and error handling. They’re suitable for a short educational PDF that teaches practical techniques for maintaining and modernizing Visual FoxPro applications.
If you want, I can generate a formatted PDF-ready file (text with headings and code blocks), or expand any section into a deeper tutorial.
If you are browsing a Visual FoxPro programming examples PDF, verify that it includes these five fundamental patterns.
* Simple function example
CLEAR
LOCAL result
result = addNumbers(2, 3)
? result
FUNCTION addNumbers
PARAMETERS num1, num2
RETURN num1 + num2
ENDFUNC
Chapter 7: Object-Oriented Programming
Visual FoxPro supports object-oriented programming (OOP) concepts, such as classes, objects, inheritance, and polymorphism. visual foxpro programming examples pdf
* Data retrieval example
CLEAR
SELECT * FROM customers
Chapter 9: Reporting and Data Output
Visual FoxPro provides various tools for generating reports and outputting data, including the REPORT FORM and LABEL commands.
These are the most coveted PDFs. Often titled "1001 Visual FoxPro Tips" or "VFP Hacks," these documents skip the basics of "What is a variable?" and jump straight into solving specific problems.
Purpose: demonstrate creating a table, inserting records, and simple browsing. These concise, runnable examples cover common VFP tasks:
Code:
CREATE TABLE Customers (CustID I AUTOINC, Name C(100), Email C(100), Created DATETIME)
INSERT INTO Customers (Name, Email, Created) VALUES ("Alice Smith","alice@example.com", DATETIME())
INSERT INTO Customers (Name, Email, Created) VALUES ("Bob Jones","bob@example.com", DATETIME())
BROWSE
Notes:
VFP was one of the earliest Microsoft languages to fully embrace OOP. Example PDFs often contain:
Here is a classic, practical example you would find in any quality VFP programming PDF. This demonstrates local data access and grid filtering. Chapter 9: Reporting and Data Output Visual FoxPro
* SearchForm.prg PUBLIC oForm oForm = CREATEOBJECT("SearchForm") oForm.SHOWDEFINE CLASS SearchForm AS FORM Caption = "Customer Search Engine" Width = 600 Height = 400
*-- Controls (Defined in Init) ADD OBJECT txtSearch AS TEXTBOX WITH ; Left = 10, Top = 10, Width = 200 ADD OBJECT cmdSearch AS COMMANDBUTTON WITH ; Caption = "Search", Left = 220, Top = 9 ADD OBJECT grdResults AS GRID WITH ; Left = 10, Top = 40, Width = 580, Height = 330 PROCEDURE INIT * Open the customer table USE Home(2) + "Data\customer" IN 0 ALIAS Customer THIS.grdResults.RECORDSOURCE = "Customer" THIS.grdResults.RECORDSOURCETYPE = 1 "Alias" ENDPROC PROCEDURE cmdSearch.CLICK LOCAL lcSeek, lcSQL lcSeek = TRIM(THISFORM.txtSearch.Value) IF EMPTY(lcSeek) MESSAGEBOX("Enter a customer name") RETURN ENDIF * SQL example: Filter the grid lcSQL = "SELECT * FROM Customer WHERE UPPER(company) LIKE '%" + ; UPPER(lcSeek) + "%' INTO CURSOR FilteredResults" &lcSQL * Refresh the grid with the cursor THISFORM.grdResults.RECORDSOURCE = "FilteredResults" THISFORM.grdResults.REFRESH ENDPROC
ENDDEFINE
Note: This is a basic example. A robust PDF would explain the difference between RECORDSOURCETYPE 1 and 3, memory management of the FILTEREDRESULTS cursor, and error handling for empty tables.