刷新时手风琴会闪烁
我有一个手风琴，里面有一个中继器。该中继器采用数组作为数据提供者。该数组又通过 HTTPService 从服务器上的 XML 文件获取数据。
现在，XML 文件中的数据在一段时间后会频繁修改，因此我使用计时器每 5 秒发送一次 HTTPService。
问题： 当计时器在 5 秒后超时时，将发送 HttpService，检索数据并在手风琴中显示，但每次发生这种情况时，手风琴都会闪烁。因此，每 5 秒就会出现一次闪烁，这非常令人恼火。
我可以以某种方式消除闪烁以使手风琴无缝更新吗？ 如果这是手风琴的问题，如果我使用 DataGrid 代替手风琴，它会持续存在吗？
I have an accordion which contains a repeater. That repeater takes an array as a dataprovider. The array in turn gets data from an XML file, on server, via HTTPService.
Now, data in the XML file gets modified after sometime frequently so I send the HTTPService after every 5 secs by using a Timer.
Problem:
When the timer timesout after 5 secs, HttpService is sent, data is retrieved and showed in accordion but each time this happens, the accordion flickers. Thus, the flickering happens every 5 sec which is quite irritating.
Can I somehow remove the flickering to make the accordion update seamlessly?
If it's the problem with accordion, will it persist if I use a DataGrid in place of accordion?
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闪烁通常表示帧速率较低，并且并非特定于某一类型的组件。如果没有任何代码，很难知道您做错了什么，但我怀疑您可能在一帧中处理了太多 XML，并且错误地使用了 Repeater 组件。
数据网格应该能够处理大量数据而不会出现闪烁问题，因为它只呈现当前在用户屏幕上可见的几行。
中继器内置的性能优化很少。如果您需要重复大量组件（超过 20 个），那么您应该使用 DataGrid 或 List。
Flickering is often an indication of a low framerate and is not specific to one type of component. Without any code its difficult to know what you are doing wrong but I suspect that you may be processing too much XML all in one frame and using the Repeater component incorrectly.
A Datagrid should be able to handle very large amounts of data without the flickering issue since it only renders the few rows that are currently visible on the user's screen.
A repeater has very few performance optimizations built into it. If you need to repeat large amounts of components (more than 20) then you should be using either a DataGrid or List.