Binding data to DataWindow retrieval arguments – PB Docs 90
Binding data to DataWindow retrieval arguments The Web DataWindow DTC can bind data from the current page or a linking page as values for retrieval arguments, allowing you to control what data is retrieved. You can use retrieval arguments to allow a single page to retrieve different sets of data depending on a user’s selection,…
About JavaServer Pages – PB Docs 90
About JavaServer Pages JavaServer Pages (JSP) technology provides a quick, easy way to create Web pages with both static and dynamic content. JSPs are text-based documents that contain static markup, usually in HTML or XML, as well as Java content in the form of scripts and/or calls to Java components. JSPs extend the Java Servlet…
Chapter 8 Using Lists in a Window – PB Docs 90
Chapter 8 Using Lists in a Window About this chapter This chapter describes how to use lists to present information in an application. Contents Topic About presenting lists Using lists Using drop-down lists Using ListView controls Document get from Powerbuilder help Thank you for watching.
PowerBuilder component on EAServer – PB Docs 90
PowerBuilder component on EAServer To run PowerBuilder components in EAServer, the runtime libraries for the version and build number of PowerBuilder in which the components were developed must be available on the server. When you install a maintenance release of PowerBuilder and deploy new or updated components to EAServer, make sure that the PowerBuilder VM…
Referencing entities in descendants – PB Docs 90
Referencing entities in descendants When you declare a variable whose datatype is a kind of object, such as a window, you can use the variable to reference any entity defined in the object, but not in one of its descendants. Consider the following code:
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w_customer mycust<br /> <br /> Open(mycust)<br /> // The following statement is legal if<br /> // w_customer window has a st_name control.<br /> mycust.st_name.text = "Joe" |
mycust is declared as a variable of type w_customer (mycust…
Performing some final housekeeping – PB Docs 90
Performing some final housekeeping When your application has finished processing pipelines, you need to make sure it takes care of a few cleanup chores. These chores basically involve releasing the resources you obtained at the beginning to support pipeline execution. Garbage collection You should avoid using the DESTROY statement to clean up resources unless you…
XML namespaces – PB Docs 90
XML namespaces XML namespaces provide a way to create globally unique names to distinguish between elements and attributes with the same name but of different terminologies. For example, in an XML invoice document for a bookstore, the name “date” could be used by accounting for the date of the order and by order fulfillment for…
Managing information in initialization files – PB Docs 90
Managing information in initialization files Functions for accessing initialization files PowerBuilder provides several functions you can use to manage application settings in initialization files. Table 36-1: PowerBuilder initialization file functions Function Description ProfileInt Obtains the integer value of a setting in a profile file ProfileString Obtains the string value of a setting in a profile…
Printing functions – PB Docs 90
Printing functions PowerScript provides predefined functions that you can use to generate simple and complex lists and reports. Using only three functions, you can create a tabular report in your printer’s default font. Using additional functions, you can create a report with multiple text fonts, character sizes, and styles, as well as lines and pictures….
Providing support for object lifetime control in MTS – PB Docs 90
Providing support for object lifetime control in MTS MTS, like EAServer and other object frameworks, notifies components about lifetime actions with activate and deactivate methods. Because MTS does not support instance pooling, when a new client calls a method on a PowerBuilder COM component running in MTS, its Constructor event is triggered and then its…