Drop Down Box Of Username, Server, Connection Port?
Mar 9, 2009
I have a logon screen that contains several textboxes where user can fill in their logon info (username, pass, server, database, connection port, etc.). I'd like to have the application memorize what they've put in after the first time successfully logon in form of a dropdown box. Let's say the 2nd time when users trying to logon, there is a drop down box of username, server, connection port, etc. available as a dropdown list item. They can select the info and simply enter the password.Is there a way to do that? If so, do you have an example or a reference source I can learn from?
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Mar 23, 2011
I would really welcome some help with this issue. We have a php code that works and connects to the LDAP. When I try to connect using VB.NET 2010, it fails to bind with logon failure unknown username or bad password. Below is the connection information. When I talk to the folks who run the ldap server, they say I am binding sucessfully, below is the log file for the sucessful bind? If I continue and try to execute a search I don't get any results. The server is running openLDAP ver 2.3.39 on a linux server, server requires connection on port 636 for secure connection, or 389 for anonymous.
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Apr 18, 2005
I'm running into this problem when it comes to determining a network logged on username and i hope someone can help me out or atleast point me in the right direction.Situation:1 Windows 2003 server that is serving files through Active directory. No Dfs installed, just plain files sharing.1 or multiple clients that access the files, make modifications and creates or deletes files. For arguments sake let's say that the clients are Windows XP computer and the users are logged on to the local domain (AD).Currently available:When the client alters, creates or deletes a file i have a (VB.Net Windows Service) script that tells me that this is being done and stores a record in a database for this action being performed.Desire:I wan't to know the client's ip-address, computername or logged on username so that i can store this to. I have tried about 20 different scripts but all check the username on the server side and not the client. So now i either get back "SYSTEM" or "NTAUTHORITYSYSTEM" instead of the user's AD name.Below is the code i use to monitor the directory and or file changes.The "writeDBLog" is where i want to pass the username to write to the database.
[Code]...
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Aug 13, 2009
Does anyone know how to store the connection string in a file rather than hard coding it in the application. For example i have declared this connection string in the form to connect to oracle database and it works. But i assume this is not the right way to go by if one is looking for more secured environment.
strcon = "Provider=MSDASQL;" & _
"Driver={Microsoft ODBC for Oracle}; " & _
"CONNECTSTRING=(DESCRIPTION=" & _
[code].....
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Aug 19, 2010
After running the following sub (VS debugger), I try to detach the database in SSMS, but it shows the connection open still and won't let me detach. If I close program in debugger, the database shows no connections. I check the dataadapter's connection in the finally block and is shows closed. What gives
Private Function ClientMasterDBFiles(ByVal MasterClientDBConnection As String, ByVal DBName As String) As DataTable
[Code]...
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Feb 5, 2011
My TCP Client connection dropped with no error. and it seem like receive 'empty data' after every 2nd message response to server.
Below is my function which having issue
Private Sub DoStreamReceive(ByVal ar As IAsyncResult)
Dim intCount As Integer
Try
[code]....
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May 28, 2012
I have a tcp client and tcp server.How do I ping the server from the client, by specifying the ip and port of the server?
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Oct 28, 2009
Using VB.NET and SQL Server 2005.In my software I am using login page with UserName and Password. Suppose I am setting a username and password work for 20 days. After 20 days, when I try to login in software, the software should not to allow to login.Is possible to make a SQL query or VB.NET code.any one provide a sample code or query for the username and password should work for particular days?
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May 14, 2010
This will happen at random, and I can always just catch the error and re-establish connection to the server, but I am confused as to why. When doing lots of inserting into the sql server, I only establish one connection that is public, instead of many little connections. I had my doubts on a public sql connection, but it's been running great, and I've seen no problems until this morning. Again, this random moment I hit an error that stated, sql connection state is broken. Is it bad practice to just accept this error, and when it happens, re-establish the connection?
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Nov 28, 2009
This emailing code wont seem to work in my program. I get an exception "The SMTP server requires a secure connection or the client was not authenticated. The server response was 5.5.1 authentication required."
Imports System.Net.Mail
Public Class emailStudent
Private Sub sendEmailButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles sendEmailButton.Click
SendMail()
[code]....
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Aug 18, 2009
I have simple code that connects to Sql database... (well it doesn't)
VB
Dim objConn As New SqlConnection("Server=localhost;uid=***;pwd=***;database=***")
objConn.Open()
ERROR MESSAGE:A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)But looks like something is wrong with "localhost" thing. Any help? Where can I get name of (my) server?
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Feb 29, 2012
I am tring to make the below application work with SQL Server 2005 Database Currently it works for test.mdb, which is in the same folder with the application. How shoud I modify the MapPath to work with SQL Server.
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Nov 14, 2009
I have a chat server / client system running, but I want users to authenticate with my vBulletin forum database.I don't want the client to do it, because it is possible to fake the 'successful login' and connect with a fake username. I want to send the username and password details to the server, and make the server check it with the local vBulletin MySQL database for the username and password.Is there a way to do this? To my knowledge vBulletin has a username and a password entries in the database which is salted, and the salt varies from user to user.
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May 27, 2011
I am trying to delete particular tables routinely from the sys.tables in vb.net. here is code, but it does not work.
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Jun 1, 2012
I do the same thing with URLdownloadtoFile: IT WORKS.Wih the WEBCLIENT part I just DO NOT GET the Text file from the PHP/MYSQL server: I only get message "Invalid Username/Password or no list download permission: ||"
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim urlStr1, urlStr2 As String
Dim fileToStoreStr, fileToStoreStr1, fileToStoreStr2 As String
[CODE]...
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Jan 17, 2009
I have a simple chat program i have made, it works but with a few errors.
1st if it can't find the physical pc it is trying to connect to it crashes.
2nd if it finds the physical server but not the program (server) running it says "the computer actively refused the connection on IP/Port" and then crashes.
Code for connect button:
IP = txtboxip.Text
Port = txtboxport.Text
[CODE].....................
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Aug 13, 2010
I am trying to do something fairly simple.. allow my user to import thier data from Excel into SQL Server, where it can be used by the application.To do this, I'm using the fairly simple code that is common everywhere I look:
strFilePath = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + fdlgFileOpen.FileName + ";Extended Properties=Excel 8.0"
connExcel = New OleDbConnection(strFilePath)
connExcel.Open()
[Code]...
Now, on my development computer this code works perfectly. The data imports, and I can go on my merry way.
On the TEST computer, this code throws the error: "ODBC -- Connection to {SQL Server} servernamesqlservername failed." This seems very odd to me, because I'm using exactly the same SQL Server and database to interact with the application, and all the other screens in the application work perfectly. The test computer CAN connect to this SQL Server, but it keeps throwing this error whenever I try import data from Excel.I've tried everything I can think of - using the server's IP address instead of the server name, sending the SQL Server administrator data along with the request, taking out the Trusted_Connection=Yes... nothing works. What is going on here? How can this code work fine on my computer, and hiccup on another?
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Oct 28, 2011
I've been working on a program that monitors ours and our clients server's to make sure they are still on. the ones that are ping able were easy, now I'm trying to monitor servers that are not ping able. what I'm thinking of doing is creating a small client program to put on each one of the none ping able server that sends a packet to our server every 30 seconds over port 80 (not have to worry about firewalls) and once the server program doesn't receive a packet for 2 minutes then it will display/sound a warning. my questions is is this possible, or is there a better way of doing this. right now i just am checking to make sure the server/internet connection is on, later i will look into getting info from event looks, SNMP, etc.
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Sep 22, 2011
I have used a third party component to download a file from my FTP server. One user has advised that their antivirus software (ESET) is blocking it. How can I determine which port it's using so that they can exempt it?
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May 19, 2009
I am working on a way to send commands to an Arduino board from a web site. The Arduino board is connected to the computer via a USB port (a COM port).
I have managed to connect and control the board using a VB.NET program. I also wrote a VB.NET class that can instantiate a COM connection and send and receive messages.
My next step is to basically create a program that will act as a proxy between my web server (IIS 7 running on Windows Vista) and the Arduino board. When a user gets to my ASP.NET page, the page will then send a command to the proxy to open the COM connection. When the connection is open and ready then I can send commands to the proxy. In turn, the proxy will send these commands to the board and listen for the responses it receives from the board. The proxy will then pass these messages back to the ASP.NET page.
The main issue I see occurring is that if a second user opens the web page and tries to open the COM port, there will be an error. Will this cause the first connection to fail? I guess I can first check if the port is already in use and give the second user a message. Are there any other potential challenges I am missing or not seeing?
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Apr 21, 2008
I am new to socket communication. I found a few samples on the web and I managed to make my own host-client communication but i wanted to go a bit further and connect to port 80 of a server and it was just a disaster! First of all I know I can just use the functions that vb has itself but I want to make my own connections ... I have got some reasons I need this one! Do I really have to make them "connect" or just somehow without connecting I get the data? So I'm stack at the point that the connection is made ... it refuses to connect.
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Dec 17, 2011
I am in need of a way to check the status of a IP and Port. I've been looking around all day and still haven't found the correct thing.
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Mar 11, 2010
I have an application to make a server and clients to read/ send text to it but I want a program I can run from a remote computer that you enter the ip and port and it crashes the server.
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May 24, 2012
I'm trying to make a Client that will automatically run a .DLL that I have created and send information over port 80 to my Server program that will take that data and import it into a database for me. Problem is, I don't know where to start as I have never done this before. I want to do this in VB .NET as this is the programming language that I know. What are methods of doing this? Is there sample code out there for something like this? My google searches are failing me.
A better layout of what I'm trying to do:1. Client Runs .DLL, retrieving information from an Excel file.2. Client takes these properties with the data it contains and sends it to a program outside of the local network through port 80, my boss refuses to let me use any other port.3. Server accepts the data and builds its own properties to be imported into my Access Database.4. Repeat over, and over, and over, and over.
I plan for the server application to be a console application, and the client to be a windows form.
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Jun 21, 2010
send a solution for this "update login SET password=@password,username=@username where username=@user"
while executing i got the error"syntax error in update statement "
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Oct 22, 2009
Im thinking of making a really user friendly tcp drag and drop tcpclient/server like winsock.
[Code]...
How would i create this for my toolbox, but use sockets with this item. or can it be as flexible as socket?
How would i do this? Would i need to add more or create a brand new socket with my mini drag n drop Client/Server Ex: MySuperEasyClient.ASCII.EncryptData.SendData(textbox.text)
ps: What would this be called? TCPClient/Server or UDP?
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Jul 30, 2011
I am trying to add multiple files to FTP server by dragging and dropping and I am able to do that using try catch block and if we give the ftp settings correctly it takes 1 sec to upload them but when we give wrong details it hangs up and dosen't give me any error message though If I give an exceptional message.
Now I am getting error message as well as success message for every file I add.I do not want that to be happen.where should I give messages for success and failure so that it should take few seconds for uploading and if not should give me a message immediately.
Here is my code:
Private Sub uploadFile(ByVal FTPAddress As String, ByVal filePath As String, ByVal username As String, ByVal password As String) 'Create FTP request
Try
[code]....
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Jan 9, 2012
I am developing a program that send sms to cellphone using a datacard.I can read the com port from the server if i run the program from the server, but i run the program from the terminal y read the com port of the terminal, but i need to read the port from the server for use datacard. What can i do? My code for read com port.
Function checkPort() As String
Dim intPort, X As Long
Dim strAbierto As String[code].........
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Mar 3, 2012
I Want to develop a software like Yed.i just don know where to start.how we can create a workspace where i can drag and drop icons and create connection etc etc.
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Jun 30, 2010
I wanted to know what are the risks of opening up a socket server on a specified port? Right now I have it limited to only accept requests from 1 specific IP to that port and all the other ones get rejected (using the windows firewall), is there a way to implement an authentication or anything else so I can allow it to be accessed from any IP worldwide yet have it secured?
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