Visual Basic 2008 Tutorial - Automatic Program Update

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Visual Basic 2008 Tutorial - Automatic Program Update
In this video ill be showing you how to check for updates globally and alert your clients when a new version is available.


Public Class Form1 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load CheckForUpdates() End Sub Public Sub CheckForUpdates() Dim file As String = Application.StartupPath & "/version.txt" Dim MyVer As String = My.Application.Info.Version.ToString If My.Computer.FileSystem.FileExists(file) Then My.Computer.FileSystem.DeleteFile(file) End If My.Computer.Network.DownloadFile("http://teamfearclan.com/version.txt", file) Dim LastVer As String = My.Computer.FileSystem.ReadAllText(file) If Not MyVer = LastVer Then MsgBox("Update Available") 'My.Computer.Network.DownloadFile("http://mysite.com/program.exe", "") Else MsgBox("Program is up to date") End If End Sub Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click CheckForUpdates() End Sub
End Class


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Category:

Howto & Style

Tags:

• vb
• net
• vb.net
• visual
• basic
• 2008
• tutorial
• automatic
• program
• update

[TheDesius]

it constantly syas: update avalible and then there is a error: file already exist

what do i need to do?????

[KillaBeMe1]

@TheDesius

Follow the damn video tutorial, i mean how much easier can it get.

[sarranoob]

So, OTHER people on OTHER computers can download the update I added AFTER I let them download the first version? Or do I need to make the newest version before I launch the first version? (cuz thats pointless)

[KillaBeMe1]

@sarranoob

Once you add this feature then your program will be able to update as long as u leave the feature in ur program.

[TheCasperBoo]

@TDAproductionsGGG You have to go to My Project then click on Assembly Information... and then change the assembly and the file version in the version of your version.txt

THUMPS UP so everybody cloud see it!

[PJ19994]

very good

[Realyrealyfunnyclips]

Where will the update save to???

[Svensonic1]

1/10 zoom in i hate it

[yourhollisterdude]

@MalwareExperts

sorry for the late reply, i don't code vb.net anymore. But it looks to me that the file exists so you need to do a check for that file, delete if it exists and re-download the new file. ie 2:30 of the video.

[VastWoW]

Awesome thanks!

[Jeffreyv1987]

@TheDesius i also get this.. is there anyway to replace the old file with the new 1?

[MercifiesProductions]

thank-you sooo much has helped a TON. Thumbs up for you

[yourhollisterdude]

@GhostFire218

no, MyVer and lastver have to be exactly the same otherwise it will trigger an update, reguardles if the version is higher or lower.. this means that no matter what clients are running the most current version