ActionScript 2.0 Components Language Reference 
ActionScript 2.0 Components Language Reference |
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Flash Player 6 (6.0.79.0).
Flash MX Professional 2004.
myDataGrid.dataProvider
Property; the data model for items viewed in a DataGrid component.
The data grid adds methods to the prototype of the Array class so that each Array object conforms to the DataProvider API (see DataProvider.as in the Classes/mx/controls/listclasses folder). Any array that is in the same frame or screen as a data grid automatically has all the methods (addItem(), getItemAt(), and so on) needed for it to be the data model of a data grid, and can be used to broadcast data model changes to multiple components.
In a DataGrid component, you specify fields for display in the DataGrid.columnNames property. If you don't define the column set (by setting the DataGrid.columnNames property or by calling DataGrid.addColumn()) for the data grid before the DataGrid.dataProvider property has been set, the data grid generates columns for each field in the data provider's first item, once that item arrives.
Any object that implements the DataProvider API can be used as a data provider for a data grid (including Flash Remoting recordsets, data sets, and arrays). For example, see DataSet.dataProvider.
Use a grid's data provider to communicate with the data in the grid because the data provider remains consistent, regardless of scroll position.
The following example creates an array to be used as a data provider and assigns it directly to the dataProvider property:
my_dg.dataProvider = [{name:"Chris", price:"Priceless"}, {name:"Nigel", price:"cheap"}];
The following example creates a new Array object that is decorated with the DataProvider API. It uses a for loop to add 20 items to the grid:
var myDP:Array = new Array();
for (var i=0; i<20; i++)
myDP.addItem({id:i, name:"Dave", price:"Priceless"});
my_dg.dataProvider = myDP
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