I have a listview with three columns adress: , status and interval
now, I would like to ping each adress and display its status at different intervals!
Is it possible to do that or I have to PING each row with one timer?
Is there a way to ping an IP address from VB.NET and store the response times?
View 2 Repliesi have tried altering some code i have to ping an ip address and store the result in an access db.i had it working when i had the ip hardcoded in as a string but I am now gettin an error.instead of having the ip address hardcoded in to the code i want it to be read in from the access db but im now getting this error:System.nullreferenceExceptionbject reference not set to an instance of an object at...button1.click event args ei have underlined the piece of code i tried to change
Imports System.Data
Public Class Form1
Dim Ping As Net.NetworkInformation.Ping
[CODE]...
Im trying to change specific lines of text in a listview at certain times of the day. Heres what im using atm , but im not sure how to change the text in the listview.
If Now.Month = 2 And Now.Day > 6 Then
ListView1.Items(0) = ("My text here !!")
End If
I want to enlarge an image, possibly up to 32 times or 64 times bigger than original dimensions (so that the user can see each pixel) if possible. The following is a simple function that I have to enlarge an image.
Private Function xEnlarge(ByVal Source As Image, ByVal Rate As Double, Optional ByVal Quality As Drawing2D.InterpolationMode = Drawing2D.InterpolationMode.HighQualityBicubic) As Image
[Code].....
I have just started using vb.net and I have a checked list box with times throughout the day shown as
00:00 - 00:14
00:15 - 00:29
00:30 - 00:44
00:45 - 00:59
What I am trying to find is a way to get the current time and find which list item it fits into. What I think I need to do is to first of all get the current time and then go through the list splitting each item into 2 times and seeing if the current time fits. For example: Split the item 00:00 - 00:14 to 00:00 and 00:14 and then check if the current time is more than 00:00:00 but less than 00:14:59 and if so do certain task.how to go about taking each list item and splitting it into 2 separate times so I can check between them?
For WD.I = 0
To (WD.Buf.Length - 1)
If WD.Buf(WD.I) = WD.SearchString(WD.II)
[code]....
Multithreading makes the addresses of things much more important with the debugger. Is there a way to get the addresses of WD in VB.net?
How can i get all hosts in a LAN and get their mac addresses.i started by getting my host name by this code [code]how can i continue or if there are any tutorials.
View 1 RepliesWhat I Want Is To Get All The IP Addresses On A Network And Put Them Into A List
View 2 RepliesIn my Windows Forms application (on startup) I use the ping command to check if both the Internet connection and my SQL Server are alive.Is there any "better" way-command I should use for accomplishing the above task in the .NET framework 2.0?
View 6 RepliesIm having a hard time understanding how im going to work with this webpage. Im adding addresses to a website, when I click submit either I will get this:
View 3 RepliesI have a need to collect only IPv4 MAC addresses. Currently I use this Code: But this brings up IPv6 MACs as well. How do I exclude the v6 MACs?
View 4 RepliesI need codes to get Actives computer names with their IPs ON Lan ?
View 4 Repliesi'm coding my own mini cheat engine, and I have a problem with displaying the addresses in the process, like each address in the process should go to my listbox.
View 12 RepliesIn the program that im working on for a friend, are a lot of addresses (ex: 123 henry blv, City, State, Zip, county)
This is all in database, but he want to be able, to select a few of them, for ex all the ones in one county, and than the program need to put them in order fot the shortest route btween them.
All i need is the list at the and, right now he does this in a routeplanner program, but take about two hours for 15 to 20 adresses,
Programes used: visual studio 2008 sql 05 express
I am working on an application where i need to get the road distance between 2 UK addresses.Currently im just using a web object that links to google maps so the user can find the distance themselves and then copy and paste the result into a textbox however i want a way for this to be done automatically
View 5 RepliesI am working on an application where i need to get the road distance between 2 UK addresses Currently im just using a web object that links to google maps so the user can find the distance themselves and then copy and paste the result into a textbox however i want a way for this to be done automatically
View 3 RepliesHow can I know which computers are connected with LAN (names and IP address), using Vb.Net code?
View 2 Replieshow we can enumerate or collect the ip addresses of all the hosts in a network. I am using VB.NET 2005. I tried using system.directoryservices but in vain.Would it be viable to find the subnet range and try pinging to every system within this range ? In this case how do we calculate the subnet range ?
View 2 RepliesI need an elegant way using VB.Net to iterate through a range of IP addresses when the input will come to my app as a string in this format: 192.168.100.8-10 This range would include 3 addresses: 192.168.100.8, 192.168.100.9, 192.168.100.10. I found a solution in C# that uses the IP Address class that I could probably convert to VB but it seemed to be way too much code for what I need to do. I could definitely use a bunch of string parsing functions but I was hoping someone already had a simple way of doing this.
View 1 RepliesI have a very long list of points I would like to plot on any state in the US. I would prefer to plot each point with just a dot. All I have is an address that includes the street address, city and state and possibly the zip code. Ideally, I would like to place the resuts in a VB Picture box. I understand there is a Google interface but have found in my research the examples to be lacking exactly what I need.
View 3 RepliesI would like to match multiple network card MAC's with the corresponding IP Addresses to be displayed. Is there a better (or just another) way to enumerate them besides using System.Management or out-and-out WMI?
View 1 RepliesIm trying to print addresses on an envelope. Problem is i dont know how to set it to landscape programatically. So its not printing on the envelope properly and is running off the edge.
Ive tried forcing it in the printdialog, however my print dialog isnt working right at the minute - so i mention it here incase the two issues are connected. No matter how many copies i say i want i just get the one, and no matter what printer i select in the printdialog - it prints to the default printer.
Id like to set it programatically anyway so that people can just put an envelope in the tray and then press "Print Envelope" and voila, no messing with print settings.
Heres my code:
Private Sub Envelope_PrintPage(ByVal sender As Object, ByVal e As PrintPageEventArgs) Handles PrintDocument2.PrintPage
Dim txt As String = vbNewLine & vbNewLine & vbNewLine & vbNewLine & TitleBox.Text & " " & FirstNameBox.Text & " " & SurnameBox.Text & " " & vbNewLine & _
[code].....
im using some regex code in vb.net to get each ip address in a list that looks like this:
[Code]...
it only returns every second ip address. any help is great! im new wih regex
I have created an application and I need to send emails to different addresses. I want to do this inside my application without automating email software like outlook etc. I have used CDO , and different activex like ostrosoft , chilkat etc .But is the same problem : Emails are sended correctly without error messages but :Some emails are received ( like in yahoo adresses), a lot of emails are marked as spam, and all the emails send to hotmail addresses are lost, not received. To send emails I'm using a regular domain, with smtp server, port, user name and password. And when I send emails from the same configuration on outlook express from the same computer, all the emails are received correctly.
View 6 RepliesI thought I had already done this in a previous project and also thought it was really easy but I am now struggling with this.All I want to do is get a list of all of the IP addresses that are assigned to the computer running my app. I thought I would use Net.NetworkInterface.GetAllNetworkInterfaces and then there would be a property on each item in that collection that told me the IPs assigned to that network card but it would seem not.
Searched and searched but the only 'solution' seems to be to use GetDnsHostEntry or WMI something similar and I dont like the sound of either of those. Surely if you can get the DNS servers IP address, Dhcp Server's IP address and Gateway IP address from the NetworkInterface instance then you must be able to get the local IP addresses as well?? I'm sure I am missing something obvious..
I'm currently doing my project to check my server status with ping option. but i got problem to check either the network is plugged or unplugged...I need this checking automaticly using timer...here what i have done....to ping the server is success but when pulgged back the network...error come around..
Private Sub Timer4_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer4.Tick
Timer4.Interval = 30000
If My.Computer.Network.IsAvailable Then
If My.Computer.Network.Ping("www.mine.my", 500) Then
[code].....
what are other ways to do ping in vb.net or c# other than the way found here:
Dim pinger As New System.Net.NetworkInformation.Ping
MessageBox.Show(pinger.Send("192.168.0.119").Status.ToString)
I have this code to ping a list of over 400 switches , the program works fine but for some reason the first time i ping all the switches alot of the attempts time-out(even tho they shouldnt) which makes the program alot slower , if i click ping again less of the attempts time-out(and as a result the program runs faster) and if i click it a third time i usually get a completely accurate result with all the switches pinging back "success" (except for a few which i know for a fact are down anyway) any ideas why this is ?
CODE:
I am trying to create a tool that will test to see if a device is reachable b ICMP and report back with the latency, i.e. send a ping. If possible, I would also like to get the hop count value.[code]I keep getting an error message saying " 'Send' is not a member of 'NetworkTool.Ping' ", but everyone seems to use it. So how do I do get .Send to work?
View 1 Replies