Apply Patches For Updating .NET Application Over The Internet?
Jan 26, 2012
First of all, I hope my intention is not missconcept.I would like to add an update from the internet mechanism for my newly VB.NET application.The idea is simple. That is, I ZIP all of the binary that need to be changed, upload it in my own hosting site, and download it using my Update Application, extract and overwrite the existing binary.
It works, quite well. But the problem is, the size of the binary itself is quite big (around 36MB). I am thinking of patches. That is, can we upload only the patch file, it surely make the download small isn't?
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Aug 5, 2009
I have created an updater for my application. When the application starts the user can launch an updater that will check for the latest version. Download it and copy the files to where the installation is.
Everything works fine.
However, I am looking for a more robust technique. And I have discovered it is better to hash the files on the web server with a hash algorithm and then when they have downloaded use the same hash algorithm to compare the hash values. If they are different either the files were corrupted when downloaded or some modified them without permission.
However, my problem is where do I store the hash values? I was thinking of hashing the files, and storing all the hash values for each file in a text file, and my updater will download that text file.
I am not sure if that is the best technique to use of not? Is this the normal and best way to do this?
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Feb 16, 2012
I am developing an application toolbar to be used with our companys CAD software and I have this portion of it Reading the lines of a text file into various comboboxes and such. However, if there are only 12 lines in the text file when I click a button to update and apply the new information i get an error because the file is already open. I need to figure out how to make sure its closed before WriteAllLines kicks in.
Imports System.IO
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If System.IO.File.Exists("c: emp est2.txt") Then
Dim theFile As String = "c: emp est2.txt"
[Code] .....
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Sep 14, 2009
I have a windows application developed in VB.net 2005. The application is installed in several machines.Is there anyway when I do any modifications and publish the code it updates in all the machines.
PS: All the machines are connected to internet.
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Sep 1, 2010
I want to create a patch system which patches the entire executable. So like: You download my patch and it changes the code of the existing executable instead of replacing it. the reason why: I got an application which is already around the ~15MB and it will grow bigger (Like 200~300MB) so, I want to keep it compact.I've already read that patching an executable for only a string is quite easy, but, I got my doubts about actual code and resources.
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Jun 21, 2010
Is there a way to apply any changes made to an entire application and not just the open (active) form that you are in? I.E. I change the backcolor to a color from a color dialog. I want that chosen color to be applied to all the forms' backcolor in my project. Can this also then be applied to all the other controls' backcolor? The code that I posted works but all forms and controls have to have the changes applied to each one separately.
[Code]....
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Jan 23, 2012
I was using VB 2008 to code using applications. An example of something I coded was hangman. I was wondering if its possible to somehow use the application code and apply it to a form.So for example with the code below how would one go about putting into a form? If this isn't possible, what are the main difference between form/application coding? How would I go about coding hangman for example on a form, what are the main difference between the two??
[code]...
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Jul 30, 2010
I'm fairly new to VB 2008(a few months in) and I'm trying to find certain information in my module. First here is my code:
[Code]...
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Apr 17, 2009
I have a problem I have a project that needs to have a communication of asp .net to vb .net my project is i want to access or control(like a remote control) the vb .net application(server) using asp .net(client side) asp .net is like a remote control and the vb .net is the application that needs to control i need to use internet to do that.
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Sep 16, 2011
I'm trying to make online chat..I saw 2 P2P tutorials:url...both are great tutorials, but they work in LAN only with addresses and ports given.if anybody knows which port and address could I use with this ideas and go to internet.
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Jun 3, 2011
I have an application that will take in specific details from the customer and generate a URL address with query string items.I need to open up an internet window that will navigate to that URL?
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Jun 23, 2011
I have an application that will take in specific details from the customer and generate a URL address with query string items.
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Apr 18, 2010
i have a Developer. have devloped application in vb.net. Now my customer says he wants to run that application in internet explorer so that can meet lots of customers for him. how can i run vb.net application in internet explorer?
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May 1, 2009
is there a way I can proxify my application's connection to the internet??
I want it to be able to select a random proxy from a list of proxy IP address in a text file.
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Jan 10, 2012
I need my application to check for internet connectivity on my user's computer. If there is, an image is displayed and if there isn't, a different image is displayed. Here's the code I used to get this to work:
Private Sub Window_Loaded(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Handles MyBase.Loaded
If NetworkInformation.NetworkInterface.GetIsNetworkAvailable Then
Dim bi1 As New BitmapImage
[code]....
I decided to test this on my own computer by changing my default gateway (thereby making it seem as if I lost connection). But I realized that the code still showed that I was connected. So I'm thinking that it's only checking for connectivity of the interface - which in this case, is my connection to the router (which is true, I was connected to the router).How do I check that the user's PC is actually connected to the internet? I read the article Check for Internet connectivity but it's in C# and I don't understand that.
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Jul 17, 2009
Is there a quick and easy way to get internet time/date to use in a net application?
I need it for creating a 15 day trial application, if i use local time/day user can simply change date before install and revert after. Using internet time i can simply add 15 days to it. VB.NET to C#
[URL]
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Aug 16, 2009
i'm developing a vb application and am intending to offer the functionality of that application on the internet as a service , how do i do that?
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Jun 11, 2010
how to properly publish my application to the Internet, so that i can upload the new version, and upon opening, the application will replace the existing one with the new version?
My.Settings("Notepad") = TextBox2.Text
My.Settings("Notepad") = TextBox2.Text
When i run the application, that pops up in yellow with an error message, how do i fix it. I'm looking at creating an IRC client that's embedded in my application. If you are able to create it even, you will be given credits, and are able to do whatever you like with it (I'll be determining its size and positioning inside my App of course) You need to be able to CHOOSE your Channel.. the client will be connecting to the Swiftkit IRC server.
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May 4, 2009
is there a way I can proxify my application's connection to the internet??I came accross System.Net.WebProxy. Here is what I have with it so far:
Dim pr As New System.Net.WebProxy(proxy)Can I set the value of proxy to equal something like 127.0.1.2:80 or do I need to split it into the address and port?Also how do I force my application to connect to the internet through that proxy? Because this is ithe part that is really baffeling me.
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Aug 8, 2007
i am trying to make an application that loads images from the internet (from my FTP Server).The problem is that when i want to change the image by selecting another image from a ComboBox control my application becomes non-respondive.When the image is loaded the application works properly again.
I tried to move that in a separate thread so instead
[Code]....
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Sep 9, 2011
I want to make application which will go back and go forward on internet browser in program.
I want: When I will click button1 then internet browser go back and go forward and so on all time. Click(button1) --> GoBack Browser - here must be break - 15 seconds --> GoForward Browser --> do it all again and again.
I do only it:
Public Class Form1
Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
End Sub
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
[Code] .....
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Feb 3, 2011
Got an asp.net 3.5 app - compiles fine, but when browse to page I get the error below. Searches for this all seem to indicate it is a namespace problem, but all of my pages seem to declare the proper namespace.
[Code]...
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Apr 9, 2011
im building a application that plays internet radios, and im stuck at one place, so i want it to be possible for the user to be able to add their own radio stations, i have a form for that, has; text boxes for the; name and for the URL, and a button to save it to the listbox called "User Radio's", now here is the problem, should i use a database where i store the preset radio's + where the user will save their radios or how exactly do i save this? i also need help with playing the radio station that the user saved in the listbox, and how will i play the preset radio's that are saved in database, populate the listbox from the database?
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May 29, 2012
i m currently working on application that has to monitor temperature and humidity of a particular place and constantly report the same to the user over internet. So far, I m using LPC1768 and its ethernet module collect the data, process it and send it to the router. On the other side, i have a computer which is connected to the same router and running a VB application where the data is mined and reported in a excel.
This setup works just fine. Now, i want to monitor the same data over internet. How can i do the same?
Here i was able to connect to the micro-controller using the IP 192.168.1.100 port 80. I m aware that the IP is a local one and to access the micro controller from Internet there is another way.I have a IP based webcam which enables us to monitor from internet. How should i make micro-controller data be accessible from internet.(similar to IP Camera).
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Mar 17, 2011
Just knowing 20 commands i am developing a app?very impressed on myself!Just knowing 10 commands + common sense + special sense each man has i had world most dangerous spy tool....but on my guru & best friend advice i dropped it..but in future will use for good purpose So here is the new scene We are team of workers had blogs,microblogs and other things i decided to create a tool for my self which is like office assistant to assist in our work at office
my tool will do the submission process when we are not in our office
my idea is using a web browser control and do it with vb commands
so kindly think yourself in such position do you agree to do submission task with web browser control or you can do it some other methods?
whats your opinion? what i mean open a website on web browser control submit the details from listbox(which increment on every submission)i think you now got how we are going to do this!!!
so i am need some one advice shall i proceed with this?i had three big challenges
1.Time
2.Yes Of Course Time
3.Ya Time But Time + Work Accuracy
so kindly guide shall i use the web browser control or use method like direct server post?
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Feb 27, 2011
I have the same problem as in this thread [URL].
I am connecting to a SQL database on a hosted server and everything is ok but if I publish the application then it fails to connect which is a bummer because then I can't debug it!
I have tried turning off windows firewall and that doesn't make any difference.
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Aug 11, 2009
I need to somehow send data from a website (On different computer from application) to my application. How would I go about this?
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Mar 11, 2010
I am trying to write an application that monitors internet usage. So it sort of needs to act like a firewall/proxy, recording each site the computer goes to. It will record all these sites in a log file. Using a proxy server on the network is not an option, each computer running this software needs to be self sufficient. Do you have any suggestions on what to use for this project?
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Aug 31, 2010
When I make an application using an HTTPWebRequest to connect to the internet, the GUI freezes whenever it's doing something. When I run the WebRequest on another thread, it still freezes a bit. Is there a way to completely stop the freezing?
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Jun 17, 2010
What is the difference between launching Internet Explorer and going to a web site with Flash and it runnig OK vs. launching a URL from a VB .NET WinForm application (using either Shell or Process.Start) and getting prompted to accept the use of the Flash Control? I don't understand why it is prompting for that and how do I get rid of it (by using the same Flash control already installed like going to a URL directly from Internet Explorer).
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