penny stocks What Is The Difference Between Foxpro (go back »)

November 25 2012, 12:30 AM

Visible FoxPro refers to variations of FoxPro that are more recent than model 2.6 this includes variations three. 9.. If you have utilised an mature version of FoxPro and change to Visual FoxPro, you will find numerous differences these kinds of as the lingo, language, tables and databases, keystrokes, equipment, screens, and studies and layouts.

Tables and Database Differences

One particular big difference amongst Visual FoxPro and FoxPro is that Visible FoxPro distinguishes among databases and tables. Although tables from FoxPro two.6 nevertheless get the job done in Visible FoxPro, they will be saved as Visible FoxPro tables if the framework of the table is modified. Additionally, Visible FoxPro tables can accept null values. To stop errors developed by makes an attempt to shop null values to FoxPro 2.six variables or to Visual FoxPro controls, initialize variables or arrays. You can disable the NULL-entry essential combo, to prevent customers from making an attempt to retailer null values to tables, by utilizing this statement ON Crucial LABEL CTRL0 *

The following are many table and database variations amongst Fox Pro 2.six and Visual Fox Professional

(FoxPro two.6 Performance Visual FoxPro Operation)

Character area with NOCPTRANS Attribute Character (BINARY) industry sort. (See "Info and Subject Types in the Visual FoxPro Aid file.)

Basic area dimension Now 4 bytes. (See "Common Industry Type" in the Visible FoxPro Aid file.)

Memo area dimension Now four bytes. (See "Memo Subject pennystocks4509.com Sort" in the Visual FoxPro Assist file.)

Memo discipline with NOCPTRANS Characteristic Memo (BINARY) industry sort. (See "Knowledge and Industry Sorts" in the Visual FoxPro Enable file.)

Numeric fields Forex information variety, Double industry kind, Float field sort, Integer industry form, or Numeric knowledge sort.

OLE info in a Basic area OLE Sure Control.

Terminology Distinctions

Visual FoxPro redefines many terms and conditions from mature variations of FoxPro such as

(FoxPro 2.6 Functionality Visual FoxPro Performance)

... GET area text box manage

Blanks or empty fields or variables Null values

Scan (in a Kind) Grid manage

Buffer File and table buffers and transactions.(See "Buffering Access to Information" and "Utilizing Transactions" in the Visible FoxPro Enable file.)

Code snippets Properties, approaches, and event code.(See "Setting Properties at Style Time" and "Assigning Strategy and Function Code" in the Visual FoxPro Aid file.)

Edit area EditBox handle(See "Visual FoxPro Naming Rules" in the Visible FoxPro Support file.)

Popup ComboBox management

Energy tools Visible designers and toolboxs.(See "Employing Designers" and "Working with Toolbars" in the Visible FoxPro Enable file.)

PushButton CommandButton manage

Radio button OptionButton command

Screen Sort

Screen picture Picture manage

Display set Form set

Text Label control

Language Differences

In addition to the new instructions for Visible FoxPro, commands for FoxPro 2.six are backwards suitable and fully purposeful with Visual FoxPro. penny stocks There are a number of instructions for FoxPro 2.six that have modified or enhanced features in Visible FoxPro. Visual Fox Pro enables extended names for objects, variables, windows, and tables. With the exception of discipline names in free of charge tables and index tags, you are able to use up to 254 characters. Some of the crucial language differences are detailed beneath

(FoxPro two.six Performance Visible FoxPro Operation)

... SAY Left House, Prime home

... SAY Photograph Picture, OLE Bound

BORDER BorderStyle residence

Transfer WINDOW Center AutoCenter house

Color ColorSourceForeColor, BackColor residence

Colour scheme ForeColor property, BackColor property, ColorScheme residence

Date info sort Date Data Kind and Date Time Sort

DBCONNECT SQLCONNECT( ) Functionality

DBEXEC SQLEXEC( ) Purpose

DEACTIVATE MENU, DEACTIVATE POPUP, DEACTIVATE WINDOW Deactivate Event

... GET DEFAULT Default house

Define WINDOW Shut Closable property

Outline WINDOW FLOAT Movable residence

Outline WINDOW HALFHEIGHT HalfHeightCaption residence

Outline WINDOW ICON FILE Icon house

EMPTY( ), BLANK( ) to test for non-existent information ISNULL( ) to check out for null values representing mysterious or non-existent knowledge

Permit, Disable Enabled house

Font (Text Menu) FontName house

Font dimensions (Font dialog) FontSize property

Font model bold (Font dialog) FontBold home

Font model italic (Font dialog) FontItalic home

... SAY Purpose, any ... GET Function Format home

Peak Top home

Horizontal placement (Display Layout dialog) commodity Left home

... GET Message cMessageText StatusBarText residence

MODIFY Display MODIFY Sort command

MODIFY Structure TABLE Designer

Numeric data sort Numeric information type additionally Float industry form, Integer discipline variety, Ambigu discipline type, and Currency information sort

Photo InputMask home

Read through ACTIVATE ReadActivate celebration

Go through CYCLE ReadCycle property

Examine DEACTIVATE ReadDeactivate occasion

Read through LOCK ReadLock property

Study NOMOUSE ReadMouse house

Examine Help save ReadSave house

Go through Present ReadShow occasion

Read TIMEOUT ReadTimeout residence

Examine Legitimate ReadValid celebration

Read through WHEN ReadWhen event

Display Name Name

SET NOCPTRANS (See "Preventing Translation of Information in Character or Memo Fields" in the Visual FoxPro Help file)

Display GET, Display Will get Refresh strategy

Dimension (Screen Layout dialog) Top, Width attributes

Type (Font dialog) FontBold, FontItalic, FontUnderline attributes, FontShadow house,FontOutline property, FontStrikeThru property

Terminate on choice (Display Builder) TerminateRead residence

Title (Screen Builder) Caption residence

Legitimate (Display Builder) Click on celebration, DblClick celebration, LostFocus function, Valid celebration

Valid Error ErrorMessage

Vertical place (Display screen Layout dialog) Leading home

When (Screen Builder) GotFocus occasion, When function

Width (Display Builder) Width home

Device Variances

Whilst some of the tools in Visual FoxPro are the similar as in FoxPro two.6, there are various Visible FoxPro tools that are unique or have various features. Under is a rundown of some of the large stocks to buy differences

(FoxPro 2.six Functionality Visible FoxPro Functionality)

Catalog Supervisor Challenge Manager

Task Manager Challenge Manager

Display Builder Sort Designer

Align (Object menu) Layout toolbox

Display Builder Toolbox Kind Controls toolbox

Manage dialogs and display screen layout dialogs Properties window

Menu Builder Menu Designer

RQBE Question Designer

Report Writer Report Designer

Label Designer Label Designer

See window possibilities Equipment Menu things

Transporter Conversion Choices dialog box

Browse window Grid Command

Keystroke Variances

There are a handful of differences in the way Visual FoxPro and FoxPro 2.6 defines some of their navigation crucial combos. Beneath are a couple of of the most useful navigation crucial commands that are new or various.

To create a new file

Ctrl N (Visual FoxPro)

Add a document to a scan window

Ctrl N (FoxPro 2.six)

Ctrl Y (Visual FoxPro)

Do software in edit window

Ctrl O (FoxPro 2.six)

Ctrl E (Visual FoxPro)

Enter null values into null enabled fields

Ctrl (Visual FoxPro)

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

On label Ctrl (Visible FoxPro)

Screen Distinctions

Though you are capable to run unconverted FoxPro 2.6 display information (.spr) in Visual FoxPro, Visible FoxPro sorts use code in gatherings, procedures, and house settings in put of code snippets. Beneath, some of these distinctions are highlighted.

(FoxPro 2.six Performance Visible FoxPro Features)

Outline, commodity trading INSERT preprocessor statements World wide incorporate file known as by new .SPR file. (See "Checking the .SPR File" in the Visual FoxPro Enable file.)

Section one Set up code Sort set Load occasion

Segment two Setup code Kind Load function

Cleanup code other than methods Unload celebration

Code snippets Strategy and event code and qualities

Constants Resolved only in approach and function code (See "Checking the .SPR File" in the Visual FoxPro Enable file.)

Macro substitutions Unresolved in attributes. Use variables rather (See "Checking Transformed FoxPro 2.six Screens" in the Visible FoxPro Support file.)

Go through WindowType house

Report and Label Variations

However you are equipped to use unconverted FoxPro two.six reviews and labels in Visual FoxPro, with Visual FoxPro studies and labels, you can set and handle the data atmosphere in buy to management report content through report variables. Some of the differences involving FoxPro 2.6 and Visible FoxPro are revealed beneath

(FoxPro 2.6 Features Visual FoxPro Performance)

Controls created with the FoxPro Report Wizard working with "Placement Relative To" options Might require adjustment in Visible

Memo discipline measurement Now four bytes. (See "Memo subject variety" in the Visible FoxPro Aid file)

REPORT TO FILE REPORT TO FILE ASCII generates basic text file

REPORT ENVIRONMENTLABEL Environment Knowledge Setting (See Menu)(See "Setting Report and Data Resources" and "Controlling a Report's Information Sources" in the Visual FoxPro Support file)

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