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&& This is a concatenation of all VFP examples on Wikipedia.
&& Copyright 2013 Wikimedia, under the GFDL.
FOR i = 1 to 10
x = x + 6.5
ENDFOR
IF i = 25
i = i + 1
ELSE
i = i + 3
ENDIF
x = 1
DO WHILE x < 50
x = x + 1
ENDDO
x = 1
DO WHILE .T.
x = x + 1
IF x < 50
LOOP
ELSE
EXIT
ENDIF
ENDDO
nMonth = MONTH(DATE())
DO CASE
CASE nMonth <= 3
MESSAGEBOX("Q1")
CASE nMonth <= 6
MESSAGEBOX("Q2")
CASE nMonth <= 9
MESSAGEBOX("Q3")
OTHERWISE
MESSAGEBOX("Q4")
ENDCASE
FOR EACH oControl IN THISFORM.Controls
MESSAGEBOX(oControl.Name)
ENDFOR
f = Factorial(10)
FUNCTION Factorial(n)
LOCAL i,r
r = 1
FOR i = n TO 1 STEP -1
r = r * n
ENDFOR
RETURN r
ENDFUNC
loForm = CREATEOBJECT("HiForm")
loForm.Show(1)
DEFINE CLASS HiForm AS Form
AutoCenter = .T.
Caption = "Hello, World"
ADD OBJECT lblHi as Label WITH ;
Caption = "Hello, World!"
ENDDEFINE
loMine = CREATEOBJECT("MyClass")
? loMine.cProp1 && This will work. (Double-ampersand marks an end-of-line comment)
? loMine.cProp2 && Program Error: Property CPROP2 is not found.
? loMine.MyMethod1() && This will work.
? loMine.MyMethod2() && Program Error: Property MYMETHOD2 is not found.
DEFINE CLASS MyClass AS Custom
cProp1 = "My Property" && This is a public property
HIDDEN cProp2 && This is a private (hidden) property
dProp3 = {} && Another public property
PROCEDURE Init() && Class constructor
This.cProp2 = "This is a hidden property."
ENDPROC
PROCEDURE dProp3_Access && Property Getter
RETURN DATE()
ENDPROC
PROCEDURE dProp3_Assign(vNewVal) && Property Setter
IF VARTYPE(vNewVal) = "D"
THIS.dProp3 = vNewVal
ENDIF
ENDPROC
PROCEDURE MyMethod1()
* This is a public method, calling a hidden method that returns
* the value of a hidden property.
RETURN This.MyMethod2()
ENDPROC
HIDDEN PROCEDURE MyMethod2() && This is a private (hidden) method
RETURN This.cProp2
ENDPROC
ENDDEFINE
&& Create a table
CREATE TABLE randData (iData I)
&& Populate with random data using xBase and SQL DML commands
FOR i = 1 TO 50
APPEND BLANK
REPLACE iData WITH (RAND() * 100)
INSERT INTO randData (iData) VALUES (RAND() * 100)
ENDFOR
&& Place a structural index on the data
INDEX ON iData TAG iData
CLOSE ALL
&& Display ordered data using xBase-style commands
USE randData
SET ORDER TO iData
GO TOP
LIST NEXT 10 && First 10
GO BOTTOM
SKIP -10
LIST REST && Last 10
CLOSE ALL
&& Browse ordered data using SQL DML commands
SELECT * ;
FROM randData ;
ORDER BY iData DESCENDING
&& Connect to an ODBC data source
LOCAL nHnd
nHnd = SQLCONNECT ("ODBCDSN", "user", "pwd")
&& Execute a SQL command
LOCAL nResult
nResult = SQLEXEC (nHnd, "USE master")
IF nResult < 0
MESSAGEBOX ("MASTER database does not exist!")
RETURN
ENDIF
&& Retrieve data from the remote server and stores it in
&& a local data cursor
nResult = SQLEXEC (nHnd, "SELECT * FROM authors", "QAUTHORS")
&& Update a record in a remote table using parameters
PRIVATE cAuthorID, cAuthorName
cAuthorID = "1001"
cAuthorName = "New name"
nResult = SQLEXEC (nHnd, "UPDATE authors SET auth_name = ?cAuthorName WHERE auth_id = ?cAuthorID")
&& Close the connection
SQLDISCONNECT(nHnd)
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