60000422 A new property in order to control how a url opening file is using the internet cache.

Summary

A new property in order to control how a url opening file is using the internet cache.

Solution

In version 6011 a new property was added in VectorDraw.Professional.vdObjects.vdFileProperties :
The property CacheLevel which is an interger with value range 0 to 6 :

         Gets or sets the cache policy when opening a drawing from a url.Not saved with drawing.
         vaid values:
         0 :NoCache           ,No entries are taken from caches, added to caches, or removed from caches between the client and server
         1 :BypassCache       ,Satisfies a request by using the server. No entries are taken from caches,
                                    added to caches, or removed from caches between the client and server.
         2 :CacheOnly         ,Satisfies a request using the locally cached resource; does not send a request
                                   for an item that is not in the cache.
         3 :CacheIfAvailable  ,Satisfies a request for a resource from the cache, if the resource is available;
                                    otherwise, sends a request for a resource to the server. If the requested
                                   item is available in any cache between the client and the server, the request
                                   might be satisfied by the intermediate cache.
         4 :Revalidate        ,Satisfies a request by using the cached copy of the resource if the timestamp
                                  is the same as the timestamp of the resource on the server; otherwise, the
                                  resource is downloaded from the server, presented to the caller, and stored                 
                                  in the cache.
         5 :Reload             ,Satisfies a request by using the server. The response might be saved in the
                                   cache. In the HTTP caching protocol, this is achieved using the no-cache
                                   cache control directive and the no-cache Pragma header.
         6 :NoCacheNoStore    ,Never satisfies a request by using resources from the cache and does not
                                  cache resources. If the resource is present in the local cache, it is removed.
         default value = 3

Example:
//Manage C# .NET using VectorDraw.Professional.dll
doc.FileProperties.CacheLevel = 5;
doc.Open("http://www.mywebsite.com/test/mydrawing.vdcl");

//VB script using vdraw.ocx wrapper component
vdraw.ActiveDocument.WrapperObject.FileProperties.CacheLevel  = 5
vdraw.ActiveDocument.Open "http://www.mywebsite.com/test/mydrawing.vdcl"

In a VB6 the VectorDraw.Professional.tlb need to be added in references.

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