A Database Development System is described that provides methodologies for creating an HTML or Web database control object (the "HTML DataWindow") for use in a Client/Server Database System The HTML DataWindow serves as a thin-client DataWindow implementation for Web applications that provides most of the data manipulation, presentation, and scripting capabilities of the PowerBuilder DataWindow, without requiring any runtime DLLs (e.g., PowerBuilder runtime dynamic link libraries) on the client. DataWindow validation rules, formatting, and edit styles are automatically converted by the system into equivalent HTML and JavaScript, without coding by the user. HTML is generated that is suitable for the target browser. A plurality of functions and events are implemented by the generation of JavaScript which is downloaded to the client. In this manner, the Web or HTML DataWindow Design-Time Dontrol supports generation of a runtime DataWindow object in HTML.
This application claims priority from provisional application serial No. 60/125,102, entitled DEVELOPMENT SYSTEM PROVIDING HTML DATABASE CONTROL OBJECT, filed Mar. 19, 1999, now abandoned, the disclosure of which is hereby incorporated by reference.
A script generating system includes a data dictionary adapted to include table structure data. A database management system runs a script generator, which includes a plurality of user defined templates. Activation of the script generator utilizes built-in macros within the database management system and extracts the table structure data. Responsively, one of the templates manipulates the table structure data to generate a script.
A computer-implemented system and method that allows Design-Time Control components to be hosted in applications whose extensibility interfaces do not natively support Design-Time Controls. The system and method host and encapsulate a Design-Time Control while simultaneously conforming to the unique extensibility interface of the software application. The user is allowed to interact directly with the Design-Time Control. The property settings of the control are saved along with some generated content into the digital document by the application's extensibility interface. The method and system allow for repeated editing of the document by recreating a control whose property values match the property values of the control that was previously created in the document.
A pocket computer comprising a plurality of programs and data, loading of and access to said programs and data being managed by an operating system. The pocket computer comprises means for selecting one of at least two predefined contexts of use and a context database that comprises a list of associated programs and data for each predefined context of use. In response to selection of a context of use, the operating system interrogates the context database in order to activate from the plurality of programs and data only programs and data associated with said context in the context base.
A database management system provides for the execution of invokable user-defined routines. Applications specify user-defined routines as being threadsafe or not threadsafe and specify the language of user-defined routines. Execution of routines will be carried out dependent on the threadsafe characteristic of the routines and on the language of the routines. Routines are assigned to processes based on their language to have any given process execute routines of the same language. Routines that are specified to be threadsafe are executed in threads in a potentially multi-threaded process. Each routine that is specified to be not threadsafe is executed in a fenced-mode processes in which no other routine is being executed.
The present invention provides a way to validate data entry at both the client and the server with minimal engineering effort. The system allows the specification of data validation rules for a form on a server. The system provides a version of the rules with the form to the client computer. The system also executes the rules on the server for further validation. The system may translate the rules into JavaScript data structures, passed as the version to the client for client-side validation. Because the rules for the form are specific only once, there is no possibility of the rules becoming out of sync between the form on the client and on the server.
