CD-158 Part VI . Appendixes recordNumber NN2 NN3 (Web hosting company)
CD-158 Part VI . Appendixes recordNumber NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility Example You can see the recordNumberproperty in action in Listing 15-15. The data source is a small, tab-delimited file consisting of 20 records of Academy Award data. Thus, the table that displays a subset of the fields is bound to the data source object. Also bound to the data source object are three SPAN objects embedded within a paragraph near the top of the page. As the user clicks a row of data, three fields from that clicked record are placed into the bound SPAN objects. The script part of this page is a mere single statement. When the user triggers the onClick event handler of the repeated TR object, the function receives as a parameter a reference to the TR object. The data store object maintains an internal copy of the data in a recordset object. One of the properties of this recordset object is the AbsolutePositionproperty, which is the integer value of the current record that the data object points to (it can point to only one row at a time, and the default row is the first row). The statement sets the AbsolutePosition property of the recordset object to the recordNumber property for the row that the user clicks. Because the three SPAN elements are bound to the same data source, they are immediately updated to reflect the change to the data object s internal pointer to the current record. Notice, too, that the third SPAN object is bound to one of the data source fields not shown in the table. You can reach any field of a record because the Data Source Object holds the entire data source content. Listing 15-15: Using the Data Binding recordNumber Property
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