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https://learn.microsoft.com/zh-cn/dotnet/api/system.web.ui.webcontrols.linqdatasource.enableobjecttracking?view=netframework-4.8.1
LinqDataSource.EnableObjectTracking 属性 (System.Web.UI.WebControls) | Microsoft Learn
获取或设置一个值，该值指示是否跟踪对数据上下文对象所做的更改。
system web uimicrosoft learn
https://learn.microsoft.com/zh-cn/dotnet/api/system.web.ui.idataitemcontainer.dataitem?view=netframework-4.8.1
IDataItemContainer.DataItem Property (System.Web.UI) | Microsoft Learn
When implemented, gets an object that is used in simplified data-binding operations.
system web uimicrosoft learnproperty
https://learn.microsoft.com/zh-cn/dotnet/api/system.web.ui.datavisualization.charting.smartlabelstyle.calloutstyle?view=netframework-4.8.1
SmartLabelStyle.CalloutStyle Property (System.Web.UI.DataVisualization.Charting) | Microsoft Learn
Gets or sets the callout style of the repositioned SmartLabelStyle object.
system web uimicrosoft learnpropertydatavisualizationcharting