The second method is the Get Data Store Schema where you define the large table that will be referenced/loaded.
The other place that requires the initialization code is in the Page_Init event of the Page you have the ASPx Grid View and XPOData Source. The final step is very simple since you’ve done the 2 steps which are probably the hardest.
Everything you need is packaged with the ASPx Grid View to work with large datasets.行数据校验（编辑状态）调用Do Row Validation()可以进行行数据校验。它实际上是触发Row Validating事件编写代码实现数据校验的。Do Row Validation方法对浏览状态的行无效，可以通过获取Aspx Grid View的Is Editing属性判断是否进入编辑状态。Row Validating事件原型：void ASPx Grid View1_Row Validating(object sender, Dev Express. ASPx Data Validation Event Args构造函数：public ASPx Data Validation Event Args(bool is New); Dev Express. I used Q3 2010 SP1 (2010.3.10.1215) version for my tests.However, looking at your screenshots I see that you have a quite complex scenario, and it is possible that there is something specific which causes the reported issue.
Hi Ruth Goldberg, Thank you for the additional details.