Gets the index of the item being displayed in a System.Web.UI.WebControls.DetailsView control from the underlying data source.
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When the paging feature is enabled (by setting the DetailsView.AllowPaging property to true), use the DetailsView.DataItemIndex property to determine the index of the currently displayed record. You can also use this property to programmatically change the displayed record.
When the paging feature is enabled, you can also use this property to determine the page number of the record displayed; however, be aware that this property is zero-based.
To determine the total number of items in the data source, use the DetailsView.DataItemCount property.