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1. #DESCARGAR VISUAL FOXPRO 9.0 PORTABLE GRATIS CODE#
2. #DESCARGAR VISUAL FOXPRO 9.0 PORTABLE GRATIS WINDOWS#

To run multiple lines of code in the Command window 1. You can even run multiple lines of code from the Command window as though they were a self-contained program. To re-execute the command, move the cursor to the line containing the command and press ENTER again. Using the Command Window You can execute a Visual FoxPro command by typing it into the Command window and pressing ENTER.

#DESCARGAR VISUAL FOXPRO 9.0 PORTABLE GRATIS WINDOWS#

Procedure code windows in the Report Designer. Procedure code windows in the Menu Designer. Event or method code windows in the Form Designer or Class Designer. The Mechanics of Programming in Visual FoxPro You can program Visual FoxPro by writing code: instructions in the form of commands, functions, or operations that Visual FoxPro can understand. The following sections detail the mechanics, concepts, and processes behind this and other Visual FoxPro programs.

Running a program has some advantages over entering individual commands in the Command window: (The semicolon ( ) indicates that the command is continued on the next line.)Įnd of the code that is executed for every record in the table. REPLACE max_ord_amt WITH max_ord_amt * 1.03 Go through every record in the table and perform all the instructions between SCAN and ENDSCAN for every record. Sample Program to Increase Maximum Order Amounts For All Customers Code If you give the right instructions in a program file, Visual FoxPro can accomplish this task quickly and easily, without error. To do this manually would be laborious and prone to mistakes. Suppose, however, that you wanted to increase the maximum order amount of every customer by 3 percent. To achieve the same result programmatically, type the following Visual FoxPro command in the Command window: REPLACE max_ord_amt WITH max_ord_amt * 1.03 It is relatively simple to change the maximum order amount for a single customer, either manually or by typing the instructions in the Command window. Multiply the value in max_ord_amt by 1.03 and type the new value in the field. To manually increase the maximum order amount 1. Scroll through the table, checking the Company field of the records for “Ernst Handel.” Programmatically, you could achieve the same results by typing the following Visual FoxPro commands in the Command window USE Customer LOCATE FOR Company = "Ernst Handel" BROWSE After you locate the order for this company, you might want to increase the maximum order amount by 3 percent. Double-click Customer.dbf in the list of files.

From the Files of type box, choose Table. To manually find a single order in a table 1. For example, if you wanted to look at information about a single customer in a table of customers, say the Ernst Handel company, you could do it manually by following a specific sequence of instructions. Using Procedures and User-Defined FunctionsĪdvantages of Programming Generally, anything that you can do in a program can also be done manually if you have enough time. The Mechanics of Programming in Visual FoxPro For an explanation of object-oriented programming, see Chapter 3, Object-Oriented Programming. If you are familiar with other programming languages and want to see how Visual FoxPro compares, see Visual FoxPro and Other Programming Languages. If you are new to programming, this chapter helps you get started. At a structural level, programming in Visual FoxPro involves manipulating stored data. Conceptually, you can think of programming as writing a sequence of instructions for accomplishing specific tasks. Chapter 1: Introduction to Programming In Visual FoxPro, procedural and object-oriented programming work together so you can create powerful, flexible applications.