By Gary Frerking; Nathan Wallace; Wayne Niddery
The definitive Delphi challenge solver, Borland Delphi How-To is helping Delphi programmers, either starting and complicated, triumph over universal demanding situations, remedy advanced difficulties, and notice their programming visions. The CD comprises the entire instance how-to ideas, assets, bitmaps, and functions built within the booklet
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Dr. Peter P. Bothner und Dr. Wolf-Michael Kähler sind wissenschaftliche Mitarbeiter im Arbeitsbereich "Statistik und Projektberatung" am Zentrum für Netze und verteilte Datenverarbeitung der Universität Bremen.
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Extra resources for Borland Delphi how-to : the definitive Delphi problem solvr
The example on server-side validation in the last section touched on user expectations when working with the user registration form. Users don’t expect communication with the server in any form unless one of the following is true: • The user initiates the action—This comes in the form of clicking a mouse button, hitting the Enter or Return key, ending a drag-and-drop action, or performing some other definitive event to indicate an expected response from the server. • The action taken does not take the user out of context and happens in seamless integration with the current interface—Auto-saving drafts falls into this category, along with streaming requests such as an RSS ticker.
The use of the thead, tbody, and tfoot tags, each with their corresponding tr collections of th tags or td tags (in the case of tbody), gives a semantic foothold for scripting and styles. The caption tag, which appears just after the opening table tag, gives exactly what it describes; allowing the titling of a table without losing the semantic coherence of an external, adjacent div. Thus, the caption tag gives context to the table headings about to get read out to the user. By adding a summary attribute to the table when appropriate, users with screen readers will have an even better idea of what the table has organized before they get lost in the sea of table cells.