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How can you identify whether or not any changes are made to the DataSet object as it was last loaded?
The DataSet object provides the following two methods to track down the changes:
The GetChanges() method - Returns the DataSet object, which is changed since it was loaded or as the AcceptChanges() method was executed.
The HasChanges() method - Indicates if any alters occurred since the DataSet object was loaded or after a call to the AcceptChanges() method was made.
If you require to revert all changes since the DataSet object was loaded, use the RejectChanges() method.
How Output cache functionality is achieved? The Output cache functionality is achieved by using the "OutputCache" attribute on ASP.NET page header. The syntax is shown below:
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