Program Know When Server Is Done Processing My Request?
Aug 18, 2009
I am connecting to my mail server using IMAP and Telnet. Once I am connected I am marking all items in the inbox as read. Some times the inbox will only have a couple of e-mails, sometimes the inbox may have thousands of e-mails. I am storing the response from the server into a Byte array, but the Byte array has a fixed length. [code]...
But the response from the server varies based on how many e-mails are successfully marked as read since I get one line of confirmation for each e-mail processed. There are times where the response may contain only 10-20 lines, other times it will contain thousands of lines. Is there any way for me to be able to get the response from the server in its entirety? I mean it seems like I would have to know when the server was done processing my request, but I'm not sure how to go about accomplishing this.
So to reiterate my question is: How can I check in my program to see when the server is done processing a response?
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Jul 31, 2011
I have written server code in vb.Net. I want it to read to variables sent by another server's HTTP 'GET' request. For example the first server will send this URL [URL]msgid=$messageid where the values to be used by my server are sender, receiver, msgdata, recvtime and msgid I have written my code but it only reads the address sent by the http server and locates for the file in the server's root directory. I want the server to be reading the variables sent by the other server using the HTTP 'GET' request. My code is shown below
' the web server only accepts get requests.
If Mid(LCase(sbuffer), 1, 3) <> "get" Then
'if not GET request then close socket and exit
[code]....
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Feb 2, 2010
We are running Crystal Reports on a Windows Server 2008 with .NET framework 3.5 SP1. I have seen many causes of the general error "The request could not be submitted for background processing." on other forums, however they tend to be persistent and repeatable affecting just a single report due to a specific formatting issue with a specific report.We are seeing this error with the below stack trace, intermittently. It affects multiple different reports we have. It affects one particular report more frequently than other reports. Once a report is affected the same error will often appear in multiple reports at approximately the same time eg. for the next 10 minutes.The same report run with the same parameters may work when run again (soon after) or the application may need restarting before the report can be successfully re run. These reports all worked previously without issue. No change in server or code seems apparent which would have precipitated this error. All code behind for this is VB.NET We have had difficulty reproducing it in test environments and upgrading to the latest version of Crystal has not helped at all.
[code]...
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Dec 27, 2010
I am trying to use an Asynchronous HTTPListener to create a simple web server in VB .Net (Not ASP) This will be run as a desktop application. My only goal is to be able to request Server Variables from the client. Is there any way to do this from within a HTTPListenerWebServer? I am using the code from the MSDN VB .Net Samples:
[Code]...
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Jan 7, 2011
I have an application that gets terms from a DB to run as a list of string terms. The DB table was set up with nvarchar for that column to include all foreign characters. Now in some cases where characters like ä will come through clearly when getting the terms from the DB and even show that way in the table. When importing japanese or arabic characters, all I see are ? Now I have tried converting it using different methods, first converting it into utf8 encoding and then back and also secondly using the httputility.htmlencode which works perfectly when it is these characters but then converts quotes and other stuff which I dont need it to do. Now I accused the db designer that he needs to do something on his part but am I wrong in that the DB should display all these characters and make it easy to just query it and add to my ssearch list. If not is there a consistent way of getting all international characters to display correctly in SQL and VB.net
I know when I have read from text files I just used the Microsoft.visualbasic.textfieldparser reader tool with encoding set to utf8 and this would not be an issue.
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Jan 18, 2012
Say I have a simple web app written in asp.net/vb.net. The web page has one button. When you click it, it does some junk in the code behind. What I would like to do, is when the page reloads, after the server has done its thing, to execute a JavaScript function.
Now the only stipulation is that it can only happen if the button was clicked. Not just on any page load. Is there a simple way to do this?
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Mar 18, 2011
I just learned some basics of multi threading in VB.net recently as I came across processing a large List of records and inserting them into SQL database one by one.
I have code look like this:
Private Sub btnLoadNow_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLoadNow.Click
Dim autoLoad1 As New Thread(AddressOf AutoLoad)
autoLoad1.Start()
[CODE]...
Itemlists is a global lists i retrieved from database, everything looks fine to me but when i run this program, I found that the threads are inserting one records 9 times into the database(I have 9 threads in total), which makes me think that maybe i need to specifically assign 1/9 of a list to each thread? Is there another way to do it which doesn't require the splitting of the list, if not , how do i split it then assign?
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Jan 6, 2010
2008 Array Processing and Sequential File Processing
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May 19, 2011
Im a college student and this is my first programming class, i am having extremely diffcult time with arrays and sequential file processing. Im not asking for the whole program, just something to get me started and hints along as i progress with it. Please help me get started on my program, its due in 2 days.
Here are the requirements....
1. The program must input any number of individual�s last and first names using two separate textboxes.
2. The array of names must be sorted by the last name using a bubble sort. You must code the sort.
3. The program must be able to recall the names from the file and add to the existing list of names so that more names can be added to, sorted, and written back to the file in sorted order.
4. Sort in ascending order: A to Z
5. All names must be displayed in a listbox in sorted order when the user wishes to see them.
6. In the listbox the last and first names must be separated by a comma and a space. Example: Smith, Mary
7. The user must be able to search for a name in the array, using the binary search algorithm. You must code the search.
8. Do not use module-level variables. Instead you may choose to use Static.
9. The program must be designed using Visual Basic 2008
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Sep 9, 2010
I have create a project with four textbox, first one are for ip address, second one are for the open ports, the third one are for username and last one is for the password. So, if I use httpwebrequest, is it possible to connect to vpn server??
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Jan 10, 2012
I have developed tcp server and client for Trader to view live rates of Indian market.url My application sends Live tick data of each and every stocks to client but some of user want to get data of specific 4-5 stocks but i dont want to create something new for it.Is it possible to publish only requested stock rates to specific client like we do in webservices we get what we ask for.
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Jun 18, 2010
i hav got a problemo with my client/server application that i created in vb.net.Actually i want to add a "Refresh button" at the client side such that when it is pressed some specific lines should be executed at the server side.(e.g. when the "refresh button" is pressed at the client side, the server should evaluate some variable "data" and executes this line "winsock.sendData(data)" )
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Oct 11, 2009
I have setup an application to parse about 3000 files a day where each contains around 4000-5000 posts in xml format with like 100 fields.It involves a lot of cleanup and parsing but on average it takes around 6 seconds per post.Now I tried threading but because of the way I have everything set up with variables being overwritten etc...I have divided the files into different folders and just created copies of the program to run and access the assigned folder. It is running on a windows 2008 server with 16 G of memory and I am told I need to reprogram to speed up the process and also not use so much memory.
For i As Integer = 0 To fileLists.Count - 1
Do
Try
[code].....
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Oct 5, 2009
How to use VB.NET 2005 for image processing?
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Sep 15, 2009
the hex convert code seems to work etc but it freezes but it does its job eventually I read that backgroundworkers can be used to fix this issue but I have no idea how to use it for my script
[Code]...
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Jun 17, 2011
I have two web servers with public IPs, for example Server1 with IP 111.111.111.111 and Server2 with IP 222.222.222.222. see the picture:
There is an asp.net webform at Server 1. My intention is:
For every http request to that webform in Server1, the Server1 just pass the request's information to Server2 for logic processing and subsequently Server2 sends the response back to client (i.e. normal browser)
My questions are:
What information that Server1 needs to pass to Server2, so that Server2 able to send response back to client? note that at Server2, there is a TcpListener instance. This TcpListener instance acting as receiver for that webform request information from Server1. What is the suitable object (i.e. the class in System.Net or related namespace such as System.Net.Sockets) at Server2 for sending response back to client? Suitable here means able to meet my intention.
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Oct 14, 2011
I have created a self hosted service with a proxy Service and Contracts
Namespace ECDBDatabase.Service
Public Class DatabaseService
<ServiceContract(Name:="DatabaseService", Namespace:="net.tcp://localhost:9010/ECDBDatabase.Service")> _
Public Interface IRPMSDatabaseService
<OperationContract()> _
Function GetHandover(ByVal Username As String, ByVal Password As String) As DataSet
End Interface
[Code]...
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Oct 12, 2010
How can I send a POST HTTP request to a server (in Visual Basic 2010) and then receive the reply into a string.
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Oct 16, 2008
I have created a self hosted service with a proxy
Service and Contracts
Namespace ECDBDatabase.Service
Public Class DatabaseService
<ServiceContract(Name:="DatabaseService",
[code].....
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Mar 29, 2011
I have setup an application to parse about 3000 files a day where each contains around 4000-5000 posts in xml format with like 100 fields. It involves a lot of cleanup and parsing but on average it takes around 6 seconds per post. Now I tried threading but because of the way I have everything set up with variables being overwritten etc...I have divided the files into different folders and just created copies of the program to run and access the assigned folder. It is running on a windows 2008 server with 16 G of memory and I am told I need to reprogram to speed up the process and also not use so much memory.
[Code]...
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Sep 29, 2009
I have a vb.net 2.0 winforms project that is full of all kinds of business reports (generated with Excel interop calls) that can be run "on-demand". Some of these reports filter through lots of data and take a long time to run - especially on our older machines around the office.I'd like to have a system where a report request can be made from the client machines, some listener sees it, locates a server with low-load, runs the report on that server, and emails the result to the user that requested it
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May 24, 2012
I'm trying to port an old VB.NET application to an Android application, but due to my lack of Java experience I am unable to find this one out. I have tried multiple solutions but to no avail.The idea is basically to do a POST request to 'url...' and getting the response cookies.[code]
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May 9, 2009
Request format is unrecognized for URL unexpectedly ending Error I have 3 webservices on windows 2003 server. All worked fine before and are called from one .net application on another server. Recently I added a few new webservice calls, builded and published . All webservices works fine on development locally. On production server all stopped working.
I would like to know how to solve the problem and how to capture the failure of webservice call. The application that is calling those webservices starts new thread to process and shows user Thanks you will get an email. However webservices stopped working and it took couple days to learn that nothing is happening, after research I learned that webservices do not work anymore. Bummer, I do not know how to alert in this case.But first more important how to fix it. On development server in VS 2005 all webservices works perfect. After publishing and testing on server to Invoke a service, the Error ....unexpectedly ending.. appears. After reading many happy postings that modifying Web.config node protocols, I discovered that instead of
[Code]...
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Aug 3, 2011
We have an in-house developed VB.Net Windows Forms application that is losing users' individual connections to the SQL Server 2008 R2 database.The bolded message below is what appears.
A transport-level error has occurred when sending the request to the server. (provider: TCP Provider, error: 0 - An existing connection was forcibly closed by the remote host.)I have looked at many numerous articles both from Microsoft and others, but have been unable to pinpoint the issue.Sometimes it occurs when the user has been away from the open application for a long-time; others maybe less than 20 minutes.
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Jun 5, 2012
My connection to QB online is working fine. It also works for add customers to QB online.When i am passing checks through it gives Bad request error.[code]
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Feb 15, 2011
I am building a simple intranet site and want to get the employees user name, but when i use Request.LogonUserIdentity.Name , i keep getting the servers credentials and not the users. what am i doing wrong and is there a better way to do this.
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Dec 31, 2010
I am trying to send an HTTP Request to a server using a POST method. The problem comes from the PostData, which needs to be in Bytes form to be used by the UploadData function.
[Code]....
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Feb 6, 2011
I'm working with the Minecraft Server To Client protocol documentation for a server I am making.It says the packet is 18+ bytes, but I can't seem to figure out what each byte is for.
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Feb 12, 2009
In Form1 there are a lot of boxes like checkbox, label....I want to show a processing message for opening serial port after program running. So I created Form2 specifically showing "Opening Port...". So in Form1_Load() I used Form2.Show(). However this message showed behind of Form1. I think this was executed before all the other tool boxes loading. So where should I put Form2.Show()?
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Aug 23, 2011
I have a task to create a web service to receive client-side app's http request(with rpc={json data} in the end), deserilize it and put he parameter in stored Procedure in order to retrive data from sql server. the procedure query and client-side's app are already there and the return data to client-side app is JSON too
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