Public Const Last Update As Integer = 0 ' Wait time to connect to Update Site in seconds Public Const Time Outlen As Integer = 60 ' Default site to download updates from Public Const Update Site As String = "updates.mysite.com" Because the Auto Updater is written as a general application, and you want to be able to add it to any project without having to modify large blocks of code, anything that is specifically related to the project is stored in variables.
The above defaults relate to first time usage, and should be stored in a file or the Registry. As you can see, when the document has completed loading you check whether the document title matches your preset title.
A single-page application (or just a few-pages application) downloads from the web server as an empty DIV element.
EXE" ' Other startup defaults ' Last update loaded...Ajax technology and JSON makes this partial-rendering easy. NET's own partial-rendering techniques, returning HTML. It requires less client-logic and is quicker to implement. By ‘classic web sites’ mean web sites where the vast majority of pages are being served entirely from the web server and fully refreshed after each postback.In the real-world, or at least in the section of the real world that I see every day, there are still plenty of classic ASP. The full refresh of the page after a postback can be significantly slow and cumbersome for users, especially when the use of graphics of these sites is quite heavy.For that, you add a Standard Web Browser object to your form. Enabled = True While Not (Http Wait Or Time Out Or Canceled) System. Just remember: The more complex your web page, the longer to load it. You also have a cancel button on your form so that, if the user does have a slow Internet connection, or just does not want to worry about the update right now they can skip the update. Cancel = True End If End Sub Private Sub Load App() Shell(App Path & "\" & App EXE, App Win Style. Close() End Sub Here, you simply use the Shell command to start the main application and exit the updater. However, many may ask, "Why not do all this within my main application? Text = "Reconnecting to Remote Server" & _ vb Cr Lf & " Please ensure that your Internet connection _ is active" Button1.And, make it reasonably large enough to hold relevant details about the update site. From here, quickly jump to Task #4, starting the application. At this point, you may need to start the application without ever completing an update check. " If you late bound just about everything in your application I'm sure you could; however, you still would not really be able to update the primary EXE file of the project. Enabled = False Time Out = False Http Wait = False Time Delay = Time Outlen Timer. Enabled = True Else Load App() Exit Sub End If End If End While ...............