I am using webclient to get and send various information through my vb.net application.All of the code works fine, except that whenever the webclient is used, it seems to lock-up the application (as if its going to crash) but then recovers after it has recieved/send the required data.I have googled around, and apparently i need to set the proxy to null (which is fine because i dont use a proxy anyway) but i dont know how do do this.Could anyone tell me how to set the proxy to null please?
I'm making a application to use in college to retrieve my calendar and other things in VB.NET. But my college uses a proxy so when I connect my laptop I need to change the internet settings in my web browser to view web pages. how I would send requests via a proxy server in VB.NET? Or is there a piece of software that I can download which tunnels all connections or is there a setting in win7 does this?
I'd like to set the proxy for a web request. However, when I say, for example, request.proxy = "x.x.x.x:xxxxx", it gives me the error "String cannot be converted to webproxy". How can I get around this and actually set the proxy?
Private _PurchaseDelivery as PurchaseDelivery Protected Overrides Sub InsertItem(ByVal index As Integer, ByVal item As PurchaseDeliveryItem)
[Code]....
Which is inside a class which overrides a custom list base. The code is occassionaly throwing an unhandled exception, System.NullReferenceException, on this line when used in production:
If _PurchaseDelivery IsNot Nothing AndAlso _PurchaseDelivery.DefaultSKUBinID.HasValue Then
DeafultSKUBinID is declared as an Integer? (Nullable Int) in the PurchaseDelivery class. I cannot see what might be causing this error, why would this be returning an error?
When I put a break point to the last if clause in the sub ("If (backOrder < 0) Then", see below) it runs until the break point, if I put the break point further below, I get the following error:
Cannot insert the value NULL into column 'OrderID', table 'WHM.dbo.OrderDetails'; column does not allow nulls. INSERT fails. The statement has been terminated.
I've discovered first hand that it only happens when prodqty is bigger then qtyOnStock, thus executing the if clause.
The code:
Private Sub NCOSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NCOSubmit.Click Dim sqlText As String = ""
I am trying to create a treeview in VB.net, the data has to be loaded from MSAccess 2010 database. When I try to run this program I get error : Argument Null Exception was unhandled, 'column' argument cannot be null and the program crashes. I have pasted the code as under:
Imports System.Data.OleDb Public Class frmRating Private Sub frmRating_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles
I have some code which gets child items for a menu via the GetChildren function which takes a list of menuData: Dim builtMenu As New List(Of MenuData)(_rawData.FindAll(Function(item) item.GroupingID = 0))
For Each menuData As MenuData In builtMenu If menuData.Children IsNot Nothing Then menuData.Children.AddRange(GetChildren(menuData)) End If Next
If I check if menudata.children isnot nothing, it always is nothing because the GetChildren function is yet to run (providing the child items, which do exist). If I remove this check and just have this code:
Dim builtMenu As New List(Of MenuData)(_rawData.FindAll(Function(item) item.GroupingID = 0))
For Each menuData As MenuData In builtMenu menuData.Children.AddRange(GetChildren(menuData)) Next
Then I am presented with a Object reference not set to an instance of an object error on menuData.Children.AddRange(GetChildren(menuData))
Private Function SendEMail(ByVal sendTo As String, ByVal subject As String) As Boolean Try ''# Dim cr As New System.Net.NetworkCredential("me073055", "me271288") ''# Dim pr As New System.Net.WebProxy("172.31.100.25", 3128)
[code]....
I am using the given code to send emails ...i am behind a proxy server..is there any way to give the proxy settings to the smtp client??If not then how do i send emails from behind a proxy server..??These are the settings i need to use to connect to the internet...i need to set this settings in my email client also.
Is it possible to set a WebBrowser control to use a proxy connection without changing all the other browsers also changing to that proxy?To clarify, I have an application that is monitoring a website but refreshing often enough during the day that I'm getting "you've made too many requests, please try again later". I'd like to get around that by using a proxy. Unfortunately not all anonymous proxies can be trusted for secure information like credit card information, so I only want to proxy the webbrowser control and not proxy any other non-application browsers.There is a site that explains quite well how to change the proxy (link not included, not certain on whether link posting allowed) but it changes the global settings on all browsers.I've tried to use 3rd party components (ex IPWorks HTTP control) however that doesn't work well with script-heavy sites that load and update dynamically - it only gets the empty skeleton of the page before being populated from the server DB.
I want to use Proxy with web browser. I got Code which i found some where in vb forums.[code]Its not Working for me.. Please Help me. Random Proxy is added correctly in Listbox.
I am attempting to make a browser. I have it set up to where it can support one proxy. My question, is, How would I make it to where the program would read from a text file, and use those proxies? 1 proxy per line?
I have an application in vb.net which connects to a remote SQL Server. This works fine. But now I have the problem, that my application has to work in a network with a proxy.
My source-code for the sql query is at the moment:
c.ConnectionString = "server=xxx.xxx.xxx.xxx;uid=User;pwd=Pass;database=DBName; " c.Open() da.SelectCommand = (New MySqlClient.MySqlCommand("SELECT * FROM Table_S", c)) da.Fill(dt_S)
I've got a vb program that sends an email using SmtpClient. I can't seem to get the message to pass the Proxy server (ccproxy). When sending thru outlook, I set the SMTP server to the Proxy server address, and in the username field I add a #and the SMTP server name following the username. I have tried several differt things here, but to no avail. Here is a sample of how I am trying to send this:
how to use a proxy ?I can use a proxy in vb with a webbrowser or httpwerequest but this not not use the proxy if i open my own browser :/What im wanting is to set a proxy in vb then open my own browser and i will be using the proxy.
I've been doing some testing with WatiN lately. For one of the tests I will need to use a proxy to perform the tests. I can set the proxy manually from IE, but I want to do it programatically. In the past I've had success setting proxy for webbrowser control using the code from here [URL] Unfortunately this does not work for WatiN.
I have no idea how to do this, using a webbrowser in VB(the normal one or, micorosoft webbrowser?)or can this be done using a Webrequest or webclient in VB.net.[code]...
All I want is the website Im trying to visit to think that I visited it with this proxy's IP.I know this is possible because ther are websites where you only type the URL in a textbox and it starts surfing for you like("planetmuffin.com"). How can this be possible on a website and not on Vb.net?
So i have a listbox that i have there for a list of proxies. I have 4 buttons pertaining to it. they are find, load, save and check
I have the first 3 finished and working but i haven't found anything useful pertaining to checking the proxies, the only one that i found took like 6 seconds per proxy so it took a lot of time for a decent sized list.
So how could i make it that on the press of that button, it checks all of the proxies in the listbox and it deletes the slow ones and the ones that flat out do not work. and does this at a decent pace(so it would probably be multi threaded)
and since i can not figure this out i have no code pertaining to this except for the sub for the button click i do not feel there is a need to post code
I think this is the right place to post this...? If not please correct me. this is a picture of my application:Here are my questions:1. I want to make one of the IP and ports in the box to the left appear in the text box on the right when I double-click on one of them. How would I go about doing this?
2. I want the IP and port in the text box to be connected to when I click the button at the bottom, for all internet browsers the user has installed.3. I then want after the button has been clicked and the proxy connected to a pop-up to appear saying "You are now connected."
I'm using VB.net. I need to create an application that sits in between the browser and the actual internet. Basically, I'm creating an online game that will edit some webpages that are incoming so that they contain parts of the game (it's a kind of scavenger hunt). How would I create this?
Does anybody have any ideas for this? I've found nothing online. If you do know something about this, I prefer code examples and not just subjects. I tend to need big pushes in a direction to learn something new.
Im trying to access(just as if I really visited that website) using a proxy, so that my real IP doesn't display for security reasons. I have no idea how to do this, using a webbrowser in VB(the normal one or, micorosoft webbrowser?) or can this be done using a Webrequest or webclient in VB.net.
So far I used this code and I dont think it works?:
Code: Imports System.Net Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]....
All I want is the website Im trying to visit to think that I visited it with this proxy's IP. I know this is possible because ther are websites where you only type the URL in a textbox and it starts surfing for you like("planetmuffin.com"). How can this be possible on a website and not on Vb.net? It is not neccesary for me to see the website, as long as it thinks I visited it!
I know it should be possible because Ive seen music downloaders in which you can use a proxy for the download.