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What is the Distinction Concerning FoxPro and Visual FoxPro?


Visual FoxPro refers to variations of FoxPro that are more recent than variation 2.six this consists of variations 3. – nine.. If you have utilised an more mature variation of FoxPro and switch to Visual FoxPro, you will obtain several differences these kinds of as the terminology, language, tables and databases, keystrokes, instruments, screens, and experiences and layouts.

Tables and Database Distinctions

One particular change between Visual FoxPro (VFP) and FoxPro is that the more recent variation distinguishes between databases and tables. Though tables from FoxPro 2.six however function in Visual FoxPro, they will be saved as VFP tables if the construction of the table is modified. On top of that, Visual FoxPro tables can take null values. To avert mistakes designed by tries to retail outlet null values to FoxPro 2.six variables or to Visual FoxPro controls, initialize variables or arrays. You can disable the NULL-entry key mix, to avert customers from attempting to retail outlet null values to tables, by using this statement: “ON Critical LABEL CTRL+ *”

The adhering to are several table and database differences between Fox Pro 2.six and Visual Fox Pro

(FoxPro 2.six Operation = Visual FoxPro Operation)

• Character discipline with NOCPTRANS Attribute = Character (BINARY) discipline style. (See “Facts and Field Types” in the VFP Support file.)

• General discipline sizing = Now 4 bytes. (See “General Field Type” in the VFP Support file.)

• Memo discipline sizing = Now 4 bytes. (See “Memo Field Type” in the VFP Support file.)

• Memo discipline with NOCPTRANS Attribute = Memo (BINARY) discipline style. (See “Facts and Field Types” in the VFP Support file.)

• Numeric fields = Forex knowledge style, Double discipline style, Float discipline style, Integer discipline style, or Numeric knowledge style.

• OLE knowledge in a General discipline = OLE Certain Control.

Terminology Distinctions

Visual FoxPro redefines several conditions from more mature variations of FoxPro like:

(FoxPro 2.six Operation = VFP Operation)

• @… GET discipline = text box control

• Blanks or empty fields or variables = Null values

• Browse (in a Sort) = Grid control

• Buffer = Report and table buffers and transactions. (See “Buffering Accessibility to Facts” and “Applying Transactions” in the VFP Support file.)

• Code snippets = Houses, solutions, and occasion code. (See “Placing Houses at Structure Time” and “Assigning Strategy and Celebration Code” in the VFP Support file.)

• Edit area = EditBox control (See “Visual FoxPro Naming Policies” in the Visual FoxPro Support file.)

• Popup = ComboBox control

• Power instruments = Visual designers and toolboxs. (See “Applying Designers” and “Applying Toolbars” in the Visual FoxPro Support file.)

• PushButton = CommandButton control

• Radio button = OptionButton control

• Display = Sort

• Display photo = Picture control

• Display set = Sort set

• Textual content = Label control

Language Distinctions

In addition to the new commands for Visual FoxPro, commands for FoxPro 2.six are backwards suitable and totally functional with VFP. There are several commands for FoxPro 2.six that have modified or increased abilities in VFP. On top of that, Visual Fox Pro makes it possible for long names for objects, variables, windows, and tables. With the exception of discipline names in cost-free tables and index tags, you are equipped to use up to 254 people. Some of the significant language differences are shown under:

(FoxPro 2.six Operation = VFP Operation)

• @… SAY = Still left Residence, Leading property

• @… SAY Picture = Picture, OLE Certain

• BORDER = BorderStyle property

• Shift WINDOW Heart = AutoCenter property

• Coloration = ColorSourceForeColor, BackColor property

• Coloration plan = ForeColor property, BackColor property, ColorScheme property

• Date knowledge style = Date Facts Type and Date Time Type

• DBCONNECT = SQLCONNECT( ) Purpose

• DBEXEC = SQLEXEC( ) Purpose

• DEACTIVATE MENU, DEACTIVATE POPUP, DEACTIVATE WINDOW = Deactivate Celebration

• @… GET DEFAULT = Default property

• Define WINDOW Close = Closable property

• Define WINDOW FLOAT = Movable property

• Define WINDOW HALFHEIGHT = HalfHeightCaption property

• Define WINDOW ICON FILE = Icon property

• Vacant( ), BLANK( ) to examine for non-existent knowledge = ISNULL( ) to examine for null values symbolizing unidentified or non-existent knowledge

• Permit, Disable = Enabled property

• Font (Textual content Menu) = FontName property

• Font sizing (Font dialog) = FontSize property

• Font type daring (Font dialog) = FontBold property

• Font type italic (Font dialog) = FontItalic property

• @… SAY Purpose, any @… GET Purpose = Format property

• Top = Top property

• Horizontal place (Display Format dialog) = Still left property

• @… GET Concept cMessageText = StatusBarText property

• MODIFY Display = MODIFY Sort command

• MODIFY Structure = Desk Designer

• Numeric knowledge style = Numeric knowledge style as well as Float discipline style, Integer discipline style, Double discipline style, and Forex knowledge style

• Picture = InputMask property

• Examine ACTIVATE = ReadActivate occasion

• Examine CYCLE = ReadCycle property

• Examine DEACTIVATE = ReadDeactivate occasion

• Examine LOCK = ReadLock property

• Examine NOMOUSE = ReadMouse property

• Examine Help save = ReadSave property

• Examine Present = ReadShow occasion

• Examine TIMEOUT = ReadTimeout property

• Examine Valid = ReadValid occasion

• Examine WHEN = ReadWhen occasion

• Display Name = Name

• Established NOCPTRANS = (See “Protecting against Translation of Facts in Character or Memo Fields” in the VFP Support file)

• Present GET, Present Gets = Refresh system

• Dimensions (Display Format dialog) = Top, Width houses

• Fashion (Font dialog) = FontBold, FontItalic, FontUnderline houses, FontShadow property,FontOutline property, FontStrikeThru property

• Terminate on selection (Display Builder)= TerminateRead property

• Title (Display Builder) = Caption property

• Valid (Display Builder) = Click occasion, DblClick occasion, LostFocus occasion, Valid occasion

• Valid Error = ErrorMessage

• Vertical place (Display Format dialog) = Leading property

• When (Display Builder) = GotFocus occasion, When occasion

• Width (Display Builder) = Width property

Resource Distinctions

Though some of the instruments in Visual FoxPro are the identical as in FoxPro 2.six, there are several Visual FoxPro instruments that are unique or have unique operation. Underneath is a rundown of some of the significant differences:

(FoxPro 2.six Operation = VFP Operation)

• Catalog Supervisor = Project Supervisor

• Project Manager = Project Supervisor

• Display Builder = Sort Designer

• Align (Object menu) = Format toolbox

• Display Builder Toolbox = Sort Controls toolbox

• Control dialogs and display screen structure dialogs = Houses window

• Menu Builder = Menu Designer

• RQBE = Question Designer

• Report Writer = Report Designer

• Label Designer = Label Designer

• See window solutions = Tools Menu products

• Transporter = Conversion Possibilities dialog box

• Browse window = Grid Control

Keystroke Distinctions

There are a couple differences in the way the most current variations of FoxPro and FoxPro 2.six defines some of their navigation key combos. Underneath are a couple of the most helpful navigation key commands that are new or unique.

To create a new file

• Ctrl + N (VFP)

Incorporate a file to a search window

• Ctrl + N (FoxPro 2.six)

• Ctrl + Y (VFP)

Do program in edit window

• Ctrl + O (FoxPro 2.six)

• Ctrl + E (VFP)

Enter null values into null enabled fields

• Ctrl + (Visual FoxPro)

Disable potential for customers to enter null values into null enabled fields

• On label: Ctrl + (VFP)

Display Distinctions

Though you are equipped to operate unconverted FoxPro 2.six display screen data files (.spr) in FoxPro Visual, Visual FoxPro types use code in events, solutions, and property configurations in area of code snippets. Underneath, some of these differences are highlighted.

• (FoxPro 2.six Operation = VFP Operation)

• #Define, #INSERT preprocessor statements = Global include things like file identified as by new.SPR file. (See “Checking the.SPR File” in the VFP file.)

• #Area 1 Setup code = Sort set Load occasion

• #Area 2 Setup code = Sort Load occasion

• Cleanup code other than procedures = Unload occasion

• Code snippets = Strategy and occasion code and houses

• Constants = Settled only in system and occasion code (See “Checking the.SPR File” in the Visual FoxPro Support file.)

• Macro substitutions = Unresolved in houses. Use variables rather (See “Checking Transformed FoxPro 2.six Screens” in the Visual FoxPro Support file.)

• Examine = WindowType property

Report and Label Distinctions

Nevertheless you are equipped to use unconverted FoxPro 2.six experiences and labels in Visual FoxPro, with Visual FoxPro experiences and labels, you can set and control the knowledge ecosystem in get to control report content material as a result of report variables. Some of the differences between FoxPro 2.six and Visual FoxPro are demonstrated under:

• (FoxPro 2.six Operation = VFP Operation)

• Controls produced with the FoxPro Report Wizard using “Place Relative To” solutions = Could possibly want adjustment in Visual

• Memo discipline sizing = Now 4 bytes. (See “Memo discipline style” in the Visual FoxPro Support file)

• REPORT TO FILE = REPORT TO FILE ASCII results in simple text file

• REPORT ENVIRONMENTLABEL Natural environment = Facts Natural environment (See Menu) (See “Placing Report and Facts Sources” and “Managing a Report’s Facts Sources” in the Visual FoxPro Support file)

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