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Instead, the Affected Rows property is set to zero, indicating that the target row was been updated (or deleted) by some other user.In that case, the appropriate thing to do is to tell the user and refresh the associated Data View to show the user the latest data: Here again, though, consider looking at the similar event on the Data View.This example skips the first 20 records and asks for the next 10 (presumably, to retrieve the third batch of 10 records): In some cases, when retrieving data in batches, you may want to know how many records you're retrieving altogether.
Place Link Button Edit in Item Template and Link Button Update and Cancel in Edit Tamplate of Grid View's column. Fire Grid View's Row Editing event for Link Button Edit. Fire Grid View's Row Updating event for Link Button Update. Fire Grid View's Row Canceling Edit event for Link Button Cancel. Set Command Name propery of Link Buttons according to their respective event. Set Grid View's Data Key Names Property to record ID (ID=Primary/Unique key of student table) 7. For instance, in the SQLData Source, the e parameter gives you access to the Command object being used and all of its properties. Select Command Type = Sql Data Source Command Type. If you decide to switch from SQL to Entity Framework, for instance, you won't have to change any code if you've used the Data View's events.The SQLData Source's *ing events are the best place to set values in any parameters that your SQL statements are using. Tailoring Queries In the Selecting event, additional options are available through the Select Arguments object that's available through the e parameter's Arguments property.Where a lot of records are being retrieved, you may want to retrieve in batches.The Select Arguments object gives you two key tools for doing this: the Start Row Index property (which specifies how many to skip over) and the Total Row Count (which specifies the number to retrieve).