cxgrid GridMode 等于 True 时的一些问题。

最新推荐文章于 2023-07-25 17:32:39 发布

转载最新推荐文章于 2023-07-25 17:32:39 发布 · 186 阅读

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原文链接：http://www.cnblogs.com/starluck/p/4079272.html

本文探讨了在使用GridMode时，数据控制器加载固定数量的数据集记录到内存的问题。详细介绍了GridModeBufferCount属性对记录数量的影响，并提供了一种优化方法来获取正确的记录总数，同时指出了在尝试从网格本身获取记录数时遇到的错误情况。

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When using grid mode, the data controller loads a fixed number of dataset records into memory. The number of records to be loaded depends on the GridModeBufferCount property value. A user is permitted to perform data-related operations on the loaded records only."

Hi 
I am using a bunch of bound grids which have non trivial queries and for some reason the automatic SQL record count embedded in the query component gives me garbage. One way to solve that is to go to the last record, then the first and use the dataset recordcount but it is a bit slow.
All these grids are in GridDBTableView1.DataController.DataModeController.GridMode := true;
I thought I could get the record count from the grid itself 
I tried
GridDBTableView1.itemcount > gives me 2 ?????
GridDBTableView1.DataController.RecordCount 
GridDBTableView1.ViewData.RecordCount
All of which gave me some WRONG values 
I am sure in one of those properties you must have the correct number, if it is the case be kind enough to let me know
Thank you & Regards

当 GridMode = true 时，　Grid.DataControl.RecordCount 只是dataset里一部分数量，这个数量行数多少取决于

GridModeBufferCount

转载于:https://www.cnblogs.com/starluck/p/4079272.html