Properly Disposing of Resources in .NET
FileUp is a COM component that provides .NET support. It is not a pure .NET assembly.
As such, it contains both "managed" and "unmanaged" code. When using components
of this nature on the .NET framework, you must explicitly dispose of the object
in order to free up resources used by that object.
This is best done by declaring the FileUp object before a Try...Catch...Finallyblock, instantiating FileUp within the Try block and disposing of FileUp
within the Finally block.
| C# |
using SoftArtisans.Net;
...(namespace, class, and other declaration code, )....
private void ProcessUpload()
{
//--- Declare the FileUp object
FileUp fileUpload = null;
try
{
fileUpload = new FileUp(Context);
...(upload processing
code)
}
catch (Exception ex)
{
...(error handling code
here)
}
finally
{
//--- Always call Dispose
in the finally block
if (fileUpload != null)
fileUpload.Dispose();
fileUpload = null;
}
}
|
| VB.NET |
Imports SoftArtisans.Net
...(namespace, class, and other declaration code, )....
Private Sub ProcessUpload()
'--- Declare the FileUp object
Dim fileUpload As FileUp
Try
fileUpload = New FileUp(Context)
...(upload processing
code)
Catch ex As System.Exception
...(error handling code
here)
Finally
'--- Always call FileUp.Dispose
in the finally block
If Not (fileUpload Is
Nothing) Then
fileUpload.Dispose()
End If
fileUpload = Nothing
End Try
End Sub
(...)
|
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