C# :: Listening For ARP Requests?
May 28, 2012explain to me how listening to ARP requests in VB.net or C #?
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Asp.net -Processing And Listening For Additional Client Requests Simultaneously?
Feb 21, 2011I need to build a Windows Service in VB.net under Visual Studio 2003.This Windows service should read the flat file (Huge file of about a million records) from the local folder and upload it to the corresponding database table.This should be done in Rollback mode(Database transaction).While transferring data to table, the service should also be listening to additional client requests.So, if in between client requests for a cancel operation, then the service should rollback the transactions and give feedback to the client. This windows service also keeps writing continuously to two log files about the status and error records. My client is ASPX page (A website). how to organize and achieve this functionality in a windows service(Processing and listening for additional client requests simultaneously. Ex. Cancellation request).
View 2 RepliesListening To Incoming Data?
Apr 15, 2010I'm listening to a something coming in on a serialport every second. how to start an event if there is nothing coming in all of a sudden.
The way I imagine it is on a timer.
Sub timer_tick
if serialport1.readline = "a" then
do something, its ok
[Code].....
Listening To The Serial Port?
Sep 21, 2011I am trying to listen to the COM3 port and display the output in the TextBox.If I understood correctly I will have to implement this by using eventhandlers, delegates.I tried following these articles:
[URL]
And this is the code I came up with...Unfortunately it doesn't display anything. App just starts display "True" and no data is being displayed.I am monitoring Arduino platform which I know is sending data constantly.
Imports System.IO.Ports
Imports System.Text
Public Class ArduinoSerial
[code]....
Listening To UDP Broadcast With Threads?
Mar 11, 2009I'm broadcasting a simple message to ..*.255 (changing to 255 the last part of my ip) and i'm trying to listen to it. the code returns no error but i'm not receiving anything. In wireshark I can see the broacast is sent correctly, but with a different port each time (I don't know if that's a big deal).
Here's some parts of my code.
Private Sub connect()
setip()
btnsend.Enabled = True
btndisconnect.Enabled = True
btnconnect.Enabled = False
receive()
[Code] .....
Communications :: Listening To The Serial Port?
Sep 21, 2011I am trying to listen to the COM3 port and display the output in the TextBox. If I understood correctly I will have to implement this by using eventhandlers, delegates. I tried following these articles:
[URL]
And this is the code I came up with... Unfortunately it doesn't display anything. App just starts display "True" and no data is being displayed. I am monitoring Arduino platform which I know is sending data constantly.
Code:
Imports System.IO.Ports
Imports System.Text
Public Class ArduinoSerial
[code].....
I am really new into the vb.net. I am sure there are some horrible mistakes with this code but I am kind of stuck for the past 2 days on this one.
Create A Port Listening Software In .net?
Jul 13, 2010i am learning to create a port listening software in vb.net?how to do "open and listen to tcp/ip port"
View 1 RepliesListening For An Event From One Program And Capture It On Another?
Mar 1, 2010Listening for an event from one program and capture it on another?is this possible, I'm asuming I would want to send a system wide event so I could capture it.My scenarioLet�s say I have this separate Splash animation (a series of png/bmp etc) but instead of having them in the main program itself I want them separate in a DLL/EXE.So how can I raise an event (probably system wide event I would imagine) letting the Main program know that the Splash DLL/EXE has finished it animation so the main app can continue?
View 9 RepliesPort Listening Via Windows Service?
Apr 13, 2009I am trying to create a windows service (visual basic 2005) that will listen for a UDbroadcast. If it detects the broadcast it then run an external program. I havesuccessfully created the server and client programs using basic forms. I used the code from this forum
View 1 RepliesSpeech Recognition - Turn Listening On / Off
Jul 19, 2010What is the code to turn listening on and off. Speech Recognition with VB 2008.
View 2 RepliesCheck Listening Ports On Remote Machine?
May 20, 2012Check listening ports on remote machine
View 1 RepliesVS 2008 Listening To Events Of Control As Property
Dec 24, 2009I have another question about my customizable Menu/Tool/StatusStrip control.
I have three controls called CustomizableMenuStrip, CustomizableToolStrip and CustomizableStatusStrip. Each of those controls has a property called Appearance, which accepts an instance of a component called AppearanceControl.
The AppearanceControl component basically exposes all color properties for the customizable strips, so the user can edit them, and more importantly exposes a ToolStripProfessionalRenderer which the three strips have to use. This way the three strips are rendered with the colors the user chooses in the AppearanceControl.
Now, I'm wondering if I'm doing things the right way. When any of the color properties in the AppearanceControl has changed, all the strips that use that particular AppearanceControl should have their Renderer set again, and should be invalidated.
I figured the easiest way (and probably the only way?) to go about this was to have the AppearanceControl raise an event (AppearanceChanged), which the three strip controls listen for. When that event is raised, the strip controls can set their Renderer to the Renderer that the AppearanceControl exposes, and then invalidate themselves.
[Code].....
Remote Desktop Api - Setup Port Listening Socket
Sep 30, 2010I'm writing a remote desktop software that starts a connection in reverse mode, using RDP API. My problem is that I try to setup the port that the listening socket may use, but it seems not working: it uses always a random port. [Code] The problem is the seems PortId is ignored: my connection string reports other ports number, and the incoming socket is open on port different from 4000.
View 1 RepliesVS 2008 [EXPRESS] Open Listening Connection (Like Console)?
Jun 8, 2009How hard is make listening connection? Game? Program? Example: Server where people can connect? Just ready opened connection example where another program connects or something? (Console where you see when people connects and disconnects.....=>)
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Tcp Listening - Form To Search Open Ports And Put Them In The Right Lisview/Column
Jun 27, 2009Lets say i got a listview and that listview contains ip and open port, i wan't the form to search open ports and put them in the Right lisview/Column example : messagebox("Ip Found")
Here is what i have a.t.m
CODE:
Display Message On Target Pc's Screen Without Client Application Running / Actively Listening For Incoming Command?
Sep 29, 2010I have recently started playing with sockets, so now i have set up an instant messaging app. it works like it's supposed to however, theres a slight problem. short of arranging for both parties to come online via email or something there's no way for the other person to know that someones waiting for them. So i'm basically looking for a way to send a pop-up message to tell the other dude to get his ass online,is there a way to display a message on a target pc's screen without a client application running and actively listening for an incoming command?
View 6 RepliesDealing With Multiple Requests?
Jul 30, 2009I have a website and say a user comes along and fills out the form with bogus data. Then after he fills it out, he enters another one and another one and another one of bogus data. He's basically just trying to clog up the data base.
How is the best way to combat this? Would it make sense to when they submit the data track the IP address?
.net - HttpWebRequest Timeouts After Ten Consecutive Requests
Jul 28, 2009I'm writing a web crawler for a specific site. The application is a VB.Net Windows Forms application that is not using multiple threads - each web request is consecutive. However, after ten successful page retrievals every successive request times out. I have reviewed the similar questions already posted here on SO, and have implemented the recommended techniques into my GetPage routine, shown below:
[Code]...
C# - Which Better To Use For Handling Requests Aspx Or Ashx?
Mar 14, 2011i am creating a httpRequest handler to download files my question is which better to use aspx or ashx ?
View 3 RepliesMonitor Print Requests And Add A Header
Nov 18, 2009I'm wanting to write a program in vb .net that could monitor outgoing print requests from any program on the PC, prompt the user if they would like to add a header to the document, and if they say yes, then tack it on (if the user has printed something in the space where the header will go, just print on top of it). Is this possible? I've looked around for ideas on how to do this, but I can't seem to find anything.
View 1 RepliesPhp - Sql Connection Open For Iterating Many Requests?
Jan 26, 2011this is general to any operation calling an SQL server, or anything requiring an open connection at that.
Say I have anywhere from 20 to 1000 Select calls to make for each item in data being looped. For each step, I'll select from sql, store data locally in a struct, then proceed. This is not a very expensive call, so should I keep the connection open for the entire loop? Or should I open and close every step?
How expensive in run time is opening a connection? I would think it'd be better to keep the connection open, but would like to get the correct response for this.
Post - Error 403 In HTTP Web Requests?
May 22, 2011while using HTTP web Requests, when i try and read the stream i always get an error saying 403 Forbidden but if i try to do it in the VB.Net web browser it works fine. Here is my code:
Imports System.Net
Imports System.Text
Imports System.IO
[Code]....
Respond To HTTP HEAD Requests Using ASP.NET?
Nov 24, 2011I have a server making a head request to a database dump I've created. The remote server does this to make sure that it's not using excessive bandwidth when not necessary.However, due to some other circumstances outside my control this causes the script to be hit twice: once for the head request, and then another time to download the data.
What I'd like is to have the script I've written detect the head request, send back a couple of headers (e.g. last modified is right now, filesize different than before), and exit. Is there a way to do this?
Respond To HTTP HEAD Requests?
Dec 26, 2011I have a server making a head request to a database dump I've created. The remote server does this to make sure that it's not using excessive bandwidth when not necessary.However, due to some other circumstances outside my control this causes the script to be hit twice: once for the head request, and then another time to download the data.
View 1 RepliesWCF Refusing To Attach ClientCredentials To Requests?
Nov 11, 2011I have a web service I'm trying to interface with however no matter what I try it is refusing to send the clients credentials along with the request.The security block in my app.config looks like
<security mode="Transport">
<transport clientCredentialType="None" proxyCredentialType="None" realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
[code].....
.net - Checking URL And Kicking Out Of The Site Malicious Requests?
Apr 10, 2012I have a site developed using vb.net 2.0. It has a URL of like [URL]..I want to avoid any malicious requests using other URLs. I have tried to implement using the code below and would like to kick such requests out of the site on the page load. How can I achieve this?
If (urlParams.Contains("http") And
Not urlParams.Contains(Request.ServerVariables("HTTP_HOST").ToString)) Then
Would like to kick out of the site here.
End If
Access HTTP Requests Made By Web Browsers?
Jun 2, 2012In VB.Net, how do I make a program to tap into the HTTP requests made by external web browsers? I don't want to edit or stop the headers, only 'read' them, i.e., access its contents. I'm speaking of something like Fiddler2, but I only want the 'reading' part. I also want to read the user-agent.
View 1 RepliesC# - Does MVC 2.0 Model Binding Work With Ajax Requests
Feb 23, 2010i'm just sending a normal POST request using Ajax.BeginForm... i output the form elements using the TextBoxFor and .HiddenFor etc... all as i should... and when it's posted via ajax to my action method, the object in the action method (named "Comment") is not populated with the values!
[code...]
Debug Faulty XML Data In ServiceDescription Requests?
May 27, 2011My winforms application is consuming webservices that run on an older PHP server, which is why i often get an XML parsing error from the service class when i invoke its members.
how do I get to see the faulty XML so that I may correct it on the PHP server - the thrown exception clearly states the position of the error in the XML, but it doesn't help without the XML.
How To Isolate Security Upgrade Requests To Certain Controls
Dec 29, 2009I've been writing an application that deals with various system files as well as registry keys. For permission reasons, my application currently runs as administrator. But this isn't really necessary for my main application window, nor is it very appealing for the UAC dialog to pop up everytime my application is started. I've noticed frequently that for some programs, such as AVG, the UAC shield shows up on several buttons throughout the program, the clicking of which does bring up the UAC prompt. But the application as a whole does not demand administrator rights, these rights are only requested as needed. How to isolate security upgrade requests to certain controls and/or methods.
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