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发Data binding analysis of AJAX DataSet and DBControl in AJAX WebShop
Register the Objects list related to data, and when the related events happen, an information should be send to these objects. After they receive these information, the related operation would carry out according to the information ID and data.
Here we will take the DBEdit as the example to analysis the way of data binding.
Set the property of DBEdit as DataSet or SetDataSet. Register DBEdit to the data binding list by LinkObj. Actually, the data binding list is an array. When the events happen in DataSet, system will call Notify to notice all the objects in the list and all the objects have an implement of the interface – HandleMessage to be called by DataSet. Refer to the source code below: