How To Get Network Card Address
Aug 14, 2009How can I get the Network Card Address using VB.Net?
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IP Address Filter Or Mask To Only Allow Valid IP Address Before Pinging Or Testing For Network Connection
Jul 6, 2011Are there any IP Address filters or masks available in Windows Forms as per following screenshot? A backslash shouldn't be allowed or it should be filtered somehow.
View 1 RepliesUsage Of Each Socket Address (protocol/network Address/port) Is Normally Permitted?
Aug 11, 2009SocketException was Unhandled: Only one usage of each socket address (protocol/network address/port) is normally permitted I get this error every time i click collect a second time.
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Obtaining Network Address From Host IP Address And Subnet Mask
Mar 8, 2009Can anyone point me to some code which can help obtain the network address from the host IP and subnet mask?
View 3 RepliesDisable Network Card With WMI?
Aug 3, 2010I'm trying to disable/enable a NIC on my local machine.
Here is my code:
Dim
colAdapters As
New ManagementClass("Win32_NetworkAdapter")
[Code]...
it always returns with this error: Invalid methodparameters
Get Network Card / Adapter Name?
Oct 6, 2010I've been using Win32_NetworkAdapterConfiguration & Win32_NetworkAdapter to get my network adapter's name, manufacturer and other descriptions. Code used:
Dim networkdata As ManagementObjectSearcher
Dim network As New ManagementObject
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
networkdata = New Management.ManagementObjectSearcher("Select * from Win32_NetworkAdapter")
For Each Me.network In networkdata.Get
Label40.Text = network("Name").ToString
Next
end sub
Obtain Default Network Card?
Jul 15, 2011Is there a way to obtain the "default" network card that's being used by the OS (WinXP, WinVista and Win7)?I've been able to get all stats from all NICs (or just a particular NIC); however, I can't figure out how to identify the "default" network card or "default" network connection or the network connection that's being used to send/receive data.
View 1 RepliesEnable / Disable Network Card Exception?
Aug 2, 2009Below is my code which enables and disables all network cards in my PC.
It works fine but when I execute this code on a normal User Account, i get the exception " Unable to read beyond the end of the stream" .
Im also aware that as a normal user, one will not be able to enable and disable network cards. I tried changing the settings in gpedit.msc bt it still doesnt work.
How do I grant permission to the user so that he wud b able to disable and enable the network card using the code below?[code]...
C# - Get MAC Address When Network Adapter Is Disabled?
Jun 30, 2010Is there any way i can retrieve MAC Address when Network Adapter is disabled in .net?
View 4 RepliesFetching IP Address Of All Computers On A Network?
Aug 30, 2011am trying to get the IP address of all of the computers on a network. I know how to fetch the names of the computers on the network but I need to fetch the IP address to. I have a listview control with 2 columns 1 for the name of the computer (1st) and another column for the IP addres (2nd). I have the code so can the IP address be displayed in column 2
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
ListView1.Items.Clear()
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Find The Local Network Ip Address?
Jul 26, 2011I have a .net network application , and as part of improving the performance of the software i would like to find the shortest route to the server . When i have more than one network , i need to find the local network ip from these current ip list .
View 3 RepliesGetting Address Of A Mapped Network Drive
Mar 28, 2010my first question on this board. I'm creating a media player(Like so many others). I try playing files over my network. When I pass this address "M:songssome artistsome song.mp3" to the windows media player control it actually opens "\ServerMEDIAsome artistsome song.mp3". But when my program checks if it is playing the correct song it thinks it is not, because the strings aren't equal. Is there a way in VB to get the network address of a mapped network drive? I can already see that it is a network drive but not wich address it points to.
View 2 RepliesCommunications :: Find Device On Network By Its Mac Address?
Feb 6, 2009I have a small embedded web server and to setup its network parameters I use a serial port, however this is giving me a lot of trouble due to USB to serial adapters (in some computers work in other doesn't).
However the other day I saw that Buffalo has a little program to find their NAS boxes (or network drives) when you don't know their IP address or got the wrong one so I assume they do it by looking for mac addresses.Is there any way of doing this with VB 2005 or higher? Basically I don't know the IP of the embedded server so I need to find it on a network, how do I find it?
a) I could do a general IP scan assuming it is on the same subnet than the host computer
b) if it has a different subnet... a general IP scan is not going to work, is it?
Getting Basic Network Information Such As The Ip Address Gateway
Aug 29, 2009how i can go about getting basic network information such as the ip address gateway etc
View 2 RepliesMAC Address And Enable/Disable Network Adapter Local Use Only?
Oct 22, 2009Im trying to Get the mac of the local computer(s) on a network and Enable/Disable the Connectiong adapter that is UP (In use), i know i can do this with the system as it stands and for a while i've used a *.bat file to do this for me but not i want a more elabrate way of doing it using a program i make for this, i will also be making it Control other computers remote on my network the same with a simple server side, in the future!, i just need it to Work on the local computer, I've read up about diffrent ways of doing this, like Getting the MAC via Registry like so:
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Network Tree Discovery - Get The FULL Path Of The Address
Mar 24, 2012Lets say that Computer 2 connects to an external server. How can that server get the FULL path of the address, not only the IP of the first router?(of course in vb.net)
View 4 RepliesObtaining Network Lan ID And Getting Info From Outlook Address Book
May 19, 2010I need to be able to get the current users LAN id using VB.NET and then use this info to pull out the phone number and full name and perhaps other dept info from the address book in outlook. The application I am building is web based in VS 2008, and the users will access the site once they have logged into the companies network. So I need to obtain their LAN ID. They will then be able to send an email using the smtp client. I need the email to send the lan ID of the person as well as include the address book info in the subject. how to use the smtp client.
View 9 RepliesCapture Raw Signal From WiFi Card As Would A Sound Card
May 9, 2012Is it possible to capture the raw signal from a WiFi card in the same way you can capture the signal from a sound card? (I already found code for working with a sound card and for drawing spectrograms) I'm wondering because it would make a cool radio-type project. I'd prefer a solution that integerates well with .net (VB or C#).My basic goal is to capture the ambient radio waves and build a primative "telescope" of sorts. Using the built in computer hardware is just the easiest way to accomplish this. If you have any other suggestions about how to accomplish this goal in a different way please post it as an answer also.
View 1 RepliesDetect Usb Card Reader Device And When Swipe The Card
Nov 23, 2009I want to create an application that can detect usb card reader device and when i swipe the card it should read.The below code WORKS PERFECTLY IN VB.But when i converted it to vb.net it is showing some problem.Below is the code for that.
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Read Smart Card Data Using Card Reader?
Dec 23, 2009i want to read data from smart card using card reader.i need vb.net code help as well as total process that mean what dll/exe will be needed and how can i determine that the card is inserted or ejected from card reader?
View 3 RepliesVS 2008 Network App - Send Message Or Network Package To Some Of The Clients In The Network
Aug 18, 2009Here is my idea so far: I have a bunch of computers connected in a local network. One of them is a MySQL server, one will have a vb.NET program wich will act as a "second server" and the rest will be different clients. What I want to do is that the "second server" will send out some kind of message or network package to some of the clients in the network, and they will execute a code based on what message it is, or what kind of package it is. I'll give you a simple example:
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VS 2005 Disable The Sound Card And Enable The Sound Card By Using Command Button?
Jun 27, 2011i have windows app i want to disable the sound card and enable the sound card by using command button
View 2 RepliesImplement Smart Card And Private Key Stored In Smart Card
Jul 7, 2009how can implement smart card and private key stored in smart card by using vb.net
View 1 RepliesImplement Smart Card And Private Key Stored In Smart Card By Using .net?
Mar 19, 2009how can implement smart card and private key stored in smart card by using vb.net
View 3 RepliesSmart Card App - After The Transaction I Need To Again Enter The Balance In The Smart Card?
Dec 21, 2009i have to develop a ticketing package for a client...and he wants to use smart cards too...i would need to develop the package on a smart device i.e. a mobile application and will have to read the card on the device itself ...i have zeroed on the instrument from motorola. and an blue tooth connected printer to print the ticket.how to read the smart card ...i have searched a lot but have not found anything good.the smart card would contain the amt. balnce in it...and after the transaction i need to again enter the balance in the smart card...
View 7 RepliesMake The Website Address Show In Browser Address Bar?
Aug 6, 2011I made web browser which consist address bar that I use it to type addressess in it i.ewhen I type [URL] it opens [URL] but when I go to anther page in google it doesnot show it's link in address bar lix InterntExplorer or other international browsers so how to show any link or any sub page's link in my browser address bar ?
View 1 RepliesVS 2008 : Use The DHCP API To Retrieve A Computer's MAC Address When Given The IP Address?
Nov 27, 2009I'm trying to use the DHCP API (using the references on pinvoke.net) to retrieve a computer's MAC address when given the IP address but I can't get the code to work. I've run all the C# code on pinvoke.net through the C#-to-VB converter but I'm stuck now.
Here's what I have so far. The value of res is always 5 (should be 0). Thing is, I can't find any documentation on what the return codes mean
vb
Private Sub GetMACDim client As String = "1.1.1.1" Dim server As String = "0.0.0.0" Dim si As New NativeMethods.DHCP_SEARCH_INFO si.SearchType = NativeMethods.DHCP_SEARCH_INFO_TYPE.DhcpClientIpAddress si.ClientIpAddress = Convert.ToUInt32(StringIPAddressToUint32(client)) Dim res As UInteger Dim oInfo As IntPtr
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Get Hostname, IP Address And Mac Address Of The Computers By Domain?
Jun 28, 2009 ' Use Your work Group WinNT://&&&&(Work Group Name) Dim DomainEntry As New DirectoryEntry("WinNT://Wokgroup") DomainEntry.Children.SchemaFilte
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VS 2008 My.Computer.Network.Ping() Cannot See Network Under Windows 7
Nov 18, 2011I have a .NET 2.0 *.dll that calls My.Computer.Network.Ping(). The *.dll is then run out of an *.exe via AppDomain.CreateDomain() and Invoke(). The problem is that this works just fine under Windows XP but under Windows 7, I get an exception saying that no network connection is available. I tried the Ping() call out of a small console application under Windows 7 and it works just fine.
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.net - Using A FileStream On A Network When The Network Drops?
Mar 26, 2012I am writing some code as part of a framework for opening a file.The file is of custom type and should not be opened by more than one instance of my application. To stop multiple file opening I use a filestream to create a lock file and then keep said filestream open. This seems to work in preventing another instance of my application from opening the file ( as it will fail in recreating the lock stream in the files open code ) but if the file is on a network share and the network drops then the original application also can not access the file any more.The code to get the lock stream is as follows:
Try
' We need to keep this stream alive to prevent other applications gaining access to the lock
mLockStream = New FileStream(mLockPath, FileMode.CreateNew, FileAccess.Write, FileShare.None)[code]....
In this I create the lock stream the first time round and then if another application tries to create it, it throws an exception and stops them from getting any further. This is kind of how it needs to work, unfortunately as I said, if this is done across a network and then the network connection is dropped for some reason then I can not delete the lock stream as I get an IOException telling me a process cannot access the file as it is open in another process ( which shouldn't be happening I don't think).