Java web server - 580 Part III . Document Objects Reference Selecting
Wednesday, September 26th, 2007580 Part III . Document Objects Reference Selecting a text object via script does not trigger the same onSelectevent han dler for that object as the one that triggers if a user manually selects text in the field. Therefore, no event handler script is executed when a user invokes the select() method. On the CD-ROM Example (with Listing 25-4) on the CD-ROM Related Items: focus() method; onSelect event handler. Event handlers onAfterUpdate onBeforeUpdate onErrorUpdate NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility . If you are using IE/Windows data binding on a text element, the element is sub ject to three possible events in the course of retrieving updated data. The onBeforeUpdate and onAfterUpdateevents fire immediately before and after (respectively) the update takes place. If an error occurs in the retrieval of data from the database, the onErrorUpdateevent fires. All three events may be used for advisory purposes. For example, an onAfterUpdate event handler may temporarily change the font characteristics of the element to signify the arrival of fresh data. Or an onErrorUpdateevent handler may fill the field with hyphens because no valid data exists for the field. These events apply only to INPUT elements of type text (meaning not password or hidden types). Related Items: dataFld, dataSrc properties (Chapter 15). onBlur onFocus onSelect NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility . . . All three of these event handlers should be used only after you have a firm understanding of the interrelationships of the events that reach text objects. You must use extreme care and conduct lots of user testing before including more than document.formObject.textObject.onBlur
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