问题:
You are creating a Windows Forms application by using the .Net Framework 3.5.You create an instance of a Backgroundworker component named backgroundWorker1 to process operations that take a long time.You discover that when the application attempts to report the progress,you receive a System.InvalidOperationException exception when executing thebackgroundWorker1.ReportProgress method.You need to configure the BackgroundWorker component appropriately to prevent the application from generating exceptions.
What should yo do?()
A . Set the Result property of the DoWorkEventArgs instance to True before you attempt to report the progress.
B . Set the CancellationPending property of backgroundWorker1 to True before you attempt to report the background process
C . Set the WorkerReportsProgress property of backgroundWorker1 to True before you attempt to report the background process.
D . Report the progress of the background process in the backgroundWorker1_ProgressChanged event.
You are creating a Windows Forms application by using the .Net Framework 3.5.You create an instance of a Backgroundworker component named backgroundWorker1 to process operations that take a long time.You discover that when the application attempts to report the progress,you receive a System.InvalidOperationException exception when executing thebackgroundWorker1.ReportProgress method.You need to configure the BackgroundWorker component appropriately to prevent the application from generating exceptions.
What should yo do?()
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