powerscript

Access | scripts | Data Access data in a data window in a PowerScript script Zhang Jianji 01-6-22 03:50:25 In the previous version of 4.0, if you wanted to access data in a data window in a PowerScript script, there was only one way to do it, which is to use the SetItem and GetItem series functions to specify what you want The value of one of the rows accessed, the limitation of which is that you can acces

blob type variable is used, the first value of the variable is converted to a decimal type value, and the rest is ignored. The stringorblob parameter can also be the return value of any type variable containing the preceding data type decimal. The corresponding decimal type value is returned when the function is successfully executed. If the value in the stringorblob parameter is not a valid powerscript number or the data type is incompatible, the DE

pbni program: The image of this topic is as follows: In the preceding figure, pbni provides two interface windows that allow the outside world to interact with the PowerBuilder core (pbvm). The first window refers to the right half of the graph, we can develop "PB extension", and Pb extension will eventually become DLL. Through this technology, C or C ++ DLL programs can be packaged into a "PBD" file, the PBD file can be added to the library search path during development, allowing PowerBuilder

First, DLL Overview: The dynamic-link library (Dynamic-link Library), referred to as a DLL, is a very important component of Windows programming. There are many advantages to using DLLs: (1) A dynamic connection using a DLL is not a copy of the library code, only the entry points and interfaces for functions are recorded in the program, the library code is loaded into memory when the program is executed, and if more than one program uses the same DLL, it saves memory overhead by simply loading

PowerBuilder 1. PowerScript The basic programming language of PB is a language called PowerScript. It was developed by PowerSoft, the first developer of PB. It is called PowerScript because it is different from VB, Delphi, and C, it has its own system. Although it is not widely used as a standard programming language, it plays an indispensable role in PowerBuild

box, ask if you want application template, press "Yes", To simplify the process of making a template. 3. Create a data window and prepare to enter data. To do this: press the DataWindow icon, select New in the Select DataWindow dialog box, and select SQL Slect and freeform in the new DataWindow dialog box, which is the SQL-selected data source, Free-form style. Press OK to select the AAA form in the Select Talbe dialog box and press Open. Click the ID column so that the ID appears to the right

memory can be used by multiple applications. In addition, PowerBuilder 5.0 also compresses the size of functions in some DLLs, and now the 32-bit platform runs on only 7 dynamic connection libraries, uncompressed 4.5M. Other DLLs required for application such as database access, distributed PowerBuilder, and Rich text editors can be loaded dynamically when used. The creation of compiled code to create a compiled code has the following steps: During the development process,

1 Otherwise, the maximum resolution is x @ 60Hz, as shown in figure 2. type="#_x0000_t75" style='width:414.75pt;height:294.75pt'>o:title="" /> Figure 2 For some graphics cards, they do not provide the corresponding function of reading edid information and displaying how to operate. How can this problem be solved? The powerful powerscript tool provides this capability. In Figure 1 and figure 2, with its help, we have the ability to further contr

Describe, Evaluatate, and LookUpDisplay in PB (powerbuilder) Describe can Describe the value of a property of an object in DW, although the function Describe can obtain the object's InformationBut the value of the expression cannot be read normally.Evaluate if you want to obtain the value of an expression in a data window object consisting of attributes and functions, you must Describe the function.Use the Evaluate function,The displayed value of LookUpDisplay in the data window control is diffe

or variable can be Variable name is preceded by a colon), the content is a valid SQL statement, and a question mark is used to represent the argument; Parameterlist is a list of parameters corresponding to the question mark in SQLStatement The hostvariablelist is the powerscript main variable (that is, the powerscript variable preceded by a colon); Transactionobject is the name of the transaction object an

variable can be Variable name is preceded by a colon), the content is a valid SQL statement, and a question mark is used to represent the argument; Parameterlist is a list of the question marks corresponding to the SQLStatement The hostvariablelist is the powerscript main variable (that is, the powerscript variable preceded by a colon); Transactionobject is the name of the transaction object and SQLCA is u

+ + (Visual C + +. NET), VB (visual Basic), VBA, QBasic (QuickBasic), VBScript (VBS), ASP, Visual C # (C Sharp), visual Basic. NET (vb.net), Visual J #. NET, vc++.net, ASP, Java, JSP, JavaScript (JScript), Delphi (Object Pascal), PowerBuilder (PowerScript), PHP, Visual Foxpro, Peoplesoft SQR, PL/SQL, t (Transact-SQL), Bourne Shell Script (SH), Bourne Again s Hell (Bash), Korn Shell (K shell, Ksh), Pdksh, POSIX shell, C Shell (CSH), tcsh, and Perl ...

(such. net dataset, etc.), but relatively large, must be. netThe efficiency of the Framework SDK is affected. 3) enter the position of the WSDL. 4) web services and ports contained in the WSDL file. 5) You can add a prefix to the proxy name. If no prefix is added, the proxy name is wsdemoservicehttpport. 6) 7) 8) 9) 10) Deploy the Web Service proxy project. 11) after the deployment, you can see the WebService. 3. Create Pb web service client Create an application, create a form, pl

Usage of dynamic call types in PbWhen it comes to the dynamic call type, Let's first look at the reference methods of objects, attributes, functions, and events:The development process of PowerBuilder 6.0 applications is actually the process of defining and using various objects. All objects have names and are differentiated by names. In powerscript, the method for accessing the attributes, functions, and events of an object is simple, that is, the do

(Powerscript), PHP, Visual FoxPro, PeopleSoft sqr, PL/SQL, T- SQL (TRANSACT-SQL), Bourne shell script (SH), Bourne again shell (BASH), KoRn shell (K shell, KSh), pdksh, POSIX shell, C shell (CSH) ), Tcsh, and Perl... Flowchart> make all code in editor. You can view the flowchart.Menu bar display mode, "Big grahic"> Expand level: 1-10 .. displayed The depth of the flowchart...Display Mode, "only comment", which can display the range of code

Describe can describe the value of a property of an object in DW, although the function describe can obtain the object's InformationBut the value of the expression cannot be read normally.Evaluate if you want to obtain the value of an expression consisting of attributes and functions in the data window object, you must use the evaluate function in the describe function,The displayed value of lookupdisplay in the data window control is different from the actual value of the field. The getitemx fu

develop series; from the perspective of general languages, functions are comparable to those of VB, and multimedia and network functions are weaker than those of other tools. The biggest advantage of Pb is the maturity and convenience of datawindow technology. It becomes the capital of Pb to compete with other database development tools. At the same time, PB's development in Java, web, and object-oriented aspects can also predict that Pb will continue to become the first choice for database sys

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: PowerSoft There are two techniques that can be used to create dynamic content. One is insert technology, the other is WEB.PB. Creating dynamic content with PowerSoft Insert technology is fairly easy. It includes DataWindow inserts and Windows or runs the insert piece. In this way, Powerbulder developers can create DataWindow or windows and use them as inserts in Netscape Navigator. DataWindow inserts are PowerSoft Stored or. PSR File--A read-only technique. Window inserts support any PowerBui

by pressing any key n in the visual data window to retrieve data (it refers to the editing control floating in the current row/column of the data window)　　Idle event:DescriptionOccurs when the Idle function has been called in an application object script and the specified number of seconds have elapsed with no mouse or keyboard activity.Event IDEvent ID ObjectsNone ApplicationArgumentsNoneReturn valueNone (do not use a RETURN statement)　　For examples:This statement in an application script caus