Drop-down lists to DataGrid scrolling through the grid reset

I have a datagrid that contains two columns with drop-down menus. The drop-down list values are defined by program to the given index. But when the grid scroll bar is made to scroll up and down and then back up the selected values to reset. Any idea of this behavior?

Yes. point converters are "recycled". Flex creates only for the visible rows. When you scroll, item for item data is scrolled position are sent the converter (through the set data() setter), who must use these data to render its visible state.

This means that all aspects of the item converter must be controlled by the data. You can't do a data-oriented work to initialize or create complete, but need to override the set data() method. Best practices is actually a little more complicated Quen only. You must place the selectedIndex property of the ComboBox value stored within the item renderer.

Google: Alex Harui point converter recycling

For a full explanation and examples.

Tracy

Tags: Flex

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