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Devart.Common Namespace / DbDump Class / BeginBackup Method / BeginBackup(String,AsyncCallback,Object) Method
The name of the file to write the script to.
The delegate to call when the asynchronous invoke is complete. If callback is a null reference (Nothing in Visual Basic), the delegate is not called.
State information that is passed on to the delegate.

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BeginBackup(String,AsyncCallback,Object) Method
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Starts an asynchronous invocation of a Backup(String) method with information for callback function.
Syntax
'Declaration
 
Public Overloads Function BeginBackup( _
   ByVal fileName As String, _
   ByVal callback As AsyncCallback, _
   ByVal stateObject As Object _
) As IAsyncResult
 

Parameters

fileName
The name of the file to write the script to.
callback
The delegate to call when the asynchronous invoke is complete. If callback is a null reference (Nothing in Visual Basic), the delegate is not called.
stateObject
State information that is passed on to the delegate.

Return Value

An System.IAsyncResult interface that represents the asynchronous operation started by calling this method.
Remarks

BeginBackup(String,AsyncCallback,Object) method enables you to perform a backup operation without having current thread blocked. In other words, your program can continue execution while the backup runs in background so you do not have to wait for it.

To start the backup operation, you have to call BeginBackup(String,AsyncCallback,Object) method, which in turn invokes appropriate actions in another thread. Return value of this method must be assigned to an System.IAsyncResult object. After executing this method, the program flow continues.

When you are ready to finish the backup operation, call EndBackup. If at the moment you call this function the backup has not yet been finished, application stops and waits till the function returns.

See Also