在gridview中显示增量数据的最佳方法是什么？

Question

I am building a monitoring application. Data is presented to a user in a girdview. This data changes frequently(an application adds 5-6 entries every second). Total number of entires loaded may be a few thousand.

What is the best way to load these rows into gridview?

Should I load data incrementally? And add each row manually?

Or

Would calling DataBind again be too expensive? I have noticed a flicker on screen with this approach and so don't want to use this.

Are there any better methods to populate a gridview with incremental data?

Answer 1

I am building a monitoring application. Data is presented to a user in a grid view. This data changes frequently(an application adds 5-6 entries every second)

Can the human eye catch 5-6 updates a second? I think your good with one update every 500 ms.

Performance tips:

• Use BindingList or List. Stay away from datatable/dataset.

• Maintain a cache of all the updates. Use a timer with 500 ms interval, update the List datasource from the cache when interval elapses.

• Refresh the CurrencyManager and do not rebind the grid .

  CurrencyManager currencyManager = (CurrencyManager)this.BindingContext[Grid.DataSource]; currencyManager.Refresh();

Answer 2

我认为逐步加载数据是更好的选择，特别适合监控应用程序。