DataSourceProvider::OnQueryFinished Method (Object^, Exception^, DispatcherOperationCallback^, Object^)
.NET Framework (current version)
Derived classes call this method to indicate that a query has finished.
Assembly: WindowsBase (in WindowsBase.dll)
protected: virtual void OnQueryFinished( Object^ newData, Exception^ error, DispatcherOperationCallback^ completionWork, Object^ callbackArguments )
Parameters
- newData
-
Type:
System::Object^
The data that is the result of the query.
- error
-
Type:
System::Exception^
The error that occurred while running the query. This value is null if there is no error.
- completionWork
-
Type:
System.Windows.Threading::DispatcherOperationCallback^
Optional delegate that is used to execute completion work on the UI thread, for example, to set additional properties.
- callbackArguments
-
Type:
System::Object^
Optional arguments to send as a parameter with the completionWork delegate.
This callback can be called from any thread. This implementation marshals back the result to the UI thread before setting any of the public properties and before raising any events.
.NET Framework
Available since 3.0
Available since 3.0
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