ComponentOne List 8.0 for ActiveX
Product Profile

ComponentOne True DBList 8.0 includes two data-aware ActiveX controls for Microsoft Visual Studio: TDBList, a data-aware multicolumn list box, and TDBCombo, a data-aware multicolumn combo box. Patterned after the DBList and DBCombo controls of Visual Basic, both TDBList and TDBCombo are automatically populated from one or more fields in an attached Data control, and can optionally update a field in a related table of another Data control. With the exception of the text box portion of the TDBCombo control, both controls are identical.

Unlike the DBList and DBCombo controls of Visual Basic, True DBList 8.0 is based on the same underlying technology as ComponentOne's award-winning True DBGrid Pro 8.0, making it a robust, versatile, and easy-to-use data presentation tool. Novice programmers can use True DBList 8.0 to easily implement multicolumn lookup tables with incremental search.Professional developers can take full advantage of the many properties and events of True DBList 8.0 to create sophisticated and user-friendly database front-end applications.

Using the latest data binding technologies built into Visual Basic, True DBList 8.0 completely manages the database interface, allowing developers to concentrate on important application-specific tasks. True DBList 8.0 can also be used in unbound mode with a programmer's own data source without binding to the Visual Basic Data control.

In addition to providing the most flexible data-aware list and combo controls on the market, True DBList 8.0 includes dozens of advanced data access, data presentation, and user interface features that enable developers to build intuitive, professional-looking applications:

Incremental search

End-users can quickly locate list items by typing. Supports both single-character matching and an incremental search mode that concatenates typed characters to further refine the search.

Automatic field completion

Works in concert with incremental search to fill the text portion of a combo with matching field data as characters are typed.

Excel and Word-like styles

Style objects encapsulate font, color, and formatting information, facilitating easy customization of list components at design time and run time.

Excel-like splits

Developers and end-users can divide the list into separate vertical panes to provide multiple views of the data.  The splits can scroll independently or simultaneously.

Fixed, nonscrolling columns

Splits can also be used to create nonscrolling columns anywhere in the list (at the left or right edges, or in the middle).

Automatic data translation

Database values can be automatically translated into alternate text or graphics without coding.  For example, numeric codes can be rendered as words or even bitmaps.

Data-sensitive display

Powerful regular expression facility can be used to apply different styles to individual cells depending upon their contents. For example, negative numbers can be shown in red, or fields containing a particular substring can be shown in bold.

Interactive visual editing

Programmers can create columns, retrieve field layouts from a bound data source, resize list components, and configure all aspects of the list layout at design time---no coding is required.

Flexible unbound modes

Event-driven unbound modes handle any data source and are ideal for displaying array data, connecting to a proprietary database, or eliminating the overhead associated with data controls.

Unbound columns

The list supports unbound columns while other columns are bound to a data control.

Array-based storage mode

The XArrayDB object included with True DBList Pro 8.0 works just like a Visual Basic array, but also acts as a data source for the list.  No unbound events to code!

Alternating row colors

Enhances the readability of the list's display.

Reusable list layouts

List layouts can be saved to a file, then reused in other projects. Multiple layouts can be stored in a single list or combo control at design time, then loaded as needed in code.End-user layout preferences can also be saved to a file, then recalled the next time the application is run.

Run-time CellTips

Provides context-sensitive help for end-users.

Excellent documentation

True DBList Pro 8.0 includes an extensive manual and on-line help with plenty of tutorials and examples.

Responsive technical support

Free technical support via e-mail, phone, fax, and peer-to-peer newsgroups. Product updates, sample programs, and answers to frequently asked questions are also available from the ComponentOne Web site at http://www.componentone.com/.

Free run-time distribution

No royalty fees required.

 

 


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