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TaskVisible = True End With Don't repeat the same call chain in the same function unless you expect a different result I see this type of code far too often, and I cringe every time The following code is slow, hard to read, and hard to maintain You would never write code like this in C+ + : It takes too long to generate code that does this much Just because you can write the code quickly in VB doesn't mean that VB can run the code quickly TreeView1NodesAdd , , "P1", "ParentNode1" TreeView1NodesAdd _ TreeView1Nodes("P1"), tvwChild, "P1C1", "ChildNode1" TreeView1NodesAdd _ TreeView1Nodes("P1"), tvwChild, "P1C2", "ChildNode1" 'Repaired code: cuts bound calls from 15 to 5 'and is a lot easier to read Dim ParentNode As Node With TreeView1Nodes Set ParentNode = Add(, , "P1", "ParentNode1") Add ParentNode, tvwChild, "P1C1", "ChildNode1" Add ParentNode, tvwChild, "P1C2", "ChildNode1" End With Reducing the number of bound calls helps you in three ways First, VB doesn't have to generate binding code multiple times Second, the objects you call don't have to run the same code repeatedly And third, the size of the generated code is reduced significantly In many cases, the size of the code may have the biggest effect on your application's performance Loading code into memory is expensive The less you have to load, the better off you'll be I'm not claiming that vtable-bound calls to objects in the same thread perform poorly and cause bottlenecks in your application if you call too many of them In fact, the performance is very good However, you generate thousands of bound calls in a typical application, and the overhead does add up Simply by using local variables and With statements, and by writing code once instead of multiple times, you can make a big difference in the overall performance of your application.

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handler chain is traversed, the CLIENT REQUEST HANDLER passes the message across the network. The SERVER REQUEST HANDLER passes the received requests through the server-side handler chain. The last handler is the provider, which invokes the service and turns the request into a reply. The reply then traverses the server-side and client-side handler chains in reverse order. Note that all handlers between REQUESTOR and CLIENT REQUEST HANDLER on the client side and all handlers between INVOKER and SERVER REQUEST HANDLER on the server side are INVOCATION INTERCEPTORS. These can perform tasks before an invocation, when a request passes the handler, and after an invocation, when a reply passes the handler. Basic tasks of REQUESTOR, CLIENT/SERVER REQUEST HANDLERS, and INVOKER are implemented as INVOCATION INTERCEPTORS. Examples are: Interacting with the transport listener provided by the SERVER REQUEST HANDLER. Invoking the MARSHALLER. Calling the URLMapper (a handler for mapping URLs to service names). Orthogonal extensions of message processing are also handled by the same INVOCATION INTERCEPTOR architecture. Examples of such extensions are: for simple logging. SoapMonitorHandler, for connecting to a SOAP Monitor tool. DebugHandler, for setting the debug level dynamically based on the value of a SOAP header element. HTTPAuth, for HTTP-specific basic authentication.

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