Application That Opens A Session To A Specific IP Port / Writes To A Test File Everything It Receives
Feb 20, 2009
I've had a search through a number of extremely useful articles on the forums, however rather than reinvent the wheel I thought I would ask if anyone already had what I am looking for..A simply little VB app that opens a session to a specific IP port and then writes to a test file everything it receives. If the connection drops, simply re-stablish it and keep listening for text to write to the file.
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Jan 16, 2010
The code below opens a file in Example 1 and writes on another file only the lines that satisfy the condition If times > 4 to another file. What I want to do is illustrated in example 2
[code]...
t= 2 comes from Subtracting t= 11 - t= 9 from the script in example 1. I have scripts with thousands of lines every time the program should automatically subtract the next value with the previous one and write the result into a new file starting from t= 0
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Aug 26, 2010
I need to create/get a simple program that opens up a webpage, writes to a log if it is successful or not, logs out and repeats 5 minutes later.I'm not a coder myself, and I have no coders available at my work, I do on the otherhand have access to Visual Basic .NET 2010.
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Feb 21, 2009
Im trying to buffer data being written to a device on a com port. The equipment attached to it does not use any form of flow contol and if you write to much information to quickly it falls over. So I have had the following thoughts.
I would create a list of strings and when I wanted to write data to the com Port I would just add the string to the list. I would then have a Sub running its own thread to step through the list, write the string to the com port ,pause a fixed amount of time, remove string from list and repeat until the list is empty. Then keep looping the above.
Code I have so far is below
Private MsgList as new List (of string)
Private sub MsgPump ()
Do
[Code]....
THis does work but If I add strings to MsgList to quickly it throws an exception.
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May 11, 2012
I have a VB.Net App that on ButtonRun_Click open Excel to get the "tab" and "column" then another buton that past content from textboxes. I get a "COMException was Unhandled" If I reopen excel it's in use.
Private Sub ButtonRun_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonRun.Click
Dim MyExcel As New Excel.Application
[Code]....
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Sep 21, 2010
I've inherited a tested function that processes incoming data from a .NET Serial Port. (Dim RXBuffer as string = serialport1.ReadExisting) I've written a different part of the application that processes a byte array as received from an asynchronous .NET socket.
Is there a way I can convert the byte array into a string as if it arrived from the serial port?
I would prefer to rewrite a very long 'if statement' into byte array functions syntax that look like:
dim b as boolean = IsBitSet(state_buffer(i), j) 'rather than:
dim b as boolean = (Asc(Mid(RXPacket.Pdu, CInt((i - (i Mod 8)) / 8) + 1, 1)) And CInt(2 ^ (i Mod 8))) > 0
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Mar 15, 2009
I am writing an app that reads from the com port, filters the data, then writes to the text box, then immediately starts over. This all takes place in an endless " do while" loop within the "start" button code. I also have a end button too which closes the com port and ends the program. Some other buttons are present also to change the filter settings.Problem is when I click start, data is logged, but none of the other buttons work. Also some of the text boxes are "see through" and dont look like thy have updated with the rest of the form.
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Oct 30, 2009
I have a small console application that writes the [TARGETDIR] from my msi installer to a text file.If I choose C:Program Files as the installation folder, it only writes out C:Program..What would you use so that it doesn't stop writing when there's a space? [code]
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May 26, 2009
I have and excel invoice temple, I need to fill this temple with information that I will get from a test file.So I need to read the test file and then fill specific cell in the temple.
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Sep 27, 2011
I finished every piece of code in my program save for one tid bit, how to pull two numbers from a text file. I know how to pull lines, I know how to pull search strings, but I cant figure out this one to save my life.
[Code]...
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Jan 23, 2010
I use this code
[Code]...
what code i use that my application pick test.pdf file from application directory.
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Feb 17, 2010
I'm launching my application at the end of installation using custom installer class - Sub oncommited.I'm using vb 2005 setup project.The application main form load event need to read/write values from HKCUSoftwareMyApp registry.The problem is that when the application is launched at the end of installation ,it reads/writes from HKEY_Users.DefaultSoftwareMyApp instead of HKCU though I've written
My .Computer.Registry.CurrentUser.CreateSubKey(RegKey).GetValue("Name","")
When the application is launched through Program files shortcut,it reads/writes properly.I need to exit the application depending on registry values.
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Feb 3, 2012
My application writes to the event log if there is an error or other status updates.
The application checks to see if there is an event source named "applicationName"and if not, it creates the source (see code below).
This works fine if the user is an administrator.
If the user is not an administrator, an error is thrown when SourceExists is called:
{"The source was not found, but some or all event logs could not be searched. Inaccessible logs: Security."}
In my environment, the typical user is NOT an admin. Therefore, I cannot use the event log in my application.
Is there a way around this, or is the event log effectively useless for distributed applications?
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Dec 23, 2009
I've got a problem losing session variables in an ASP/VB.NET application. The application allows searching for an item or it can show an item if provided with a unique link (in the browser). It holds information about the item in session variables. In the webpage showing an Item a user can click a button which opens a window with additional information about the item - obtained from a session variable. When I search for the item using the search engine and click the button - it works OK.
When I copy the link to a browser: the item is shown, however clicking the button returns a 'null exception' - the session variables with information about the item are lost. Moreover when I provide the link for the second time the button works, the variables are there!
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May 12, 2012
Is it possible to create a variable that is global for each session in ASP.NET? Usually I do this with Session:
Session("my_variable") = 10
But this necessitates casting it every time I want to use it like so:
Dim my_variable as String = CInt(Session("my_variable"))
[code]......
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Feb 17, 2009
Basically, i have to write a small application that just writes in certain cells of a set page of an excel sheet, the sheet will always be the same layout.
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Oct 16, 2009
Let me explain the functions and what they do first.This function writes a key to a specified file:
Public Shared Sub WriteDatabaseKey(ByVal section As String, ByVal keyname As String, ByVal entrystring As String, ByVal filename As String, ByVal filepath As String)
[code]...
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May 4, 2011
I am developing an application that Monitors a specific folder for file changes such as modify deletion, update, etc. The only problem I have is , the application doesn't fire up File events.
Here is the code:
Imports System.IO
Imports System.Diagnostics
Public Class Form1
[CODE].............................
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Jun 3, 2011
I use Visual studio 2008 I use MYSQL 5.1 I want only to backup database Test to to a specific directory.I use the application settings to determine which directory(see attachment).Green shaded code works perfect.
Red shaded code works not!! This is with My.settings.I can not see the error code, it goes too fast, I can not capture this with:
[Code]...
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Mar 19, 2012
i have this message program that writes text to a .txt file when i push a button and a filesystemwatcher that checks for when that file is changed and when it is it set the text of another textbox in my program to the text of the file. in the text i transport over there are usernames, i want the program to check to see if textbox contains that text then i want it to highlight or color or change the font of that text, or username. but i want it to just change the username's attributes not the whole text box,
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May 13, 2010
My request is a difficult one. What I wish to do is unlock a machine when my program recieves a command. I have searced a lot and found nothing which helps. The reason I wish to do this is simple. I have created an application which allows me to send SMS messages to my computer via twitter. One of the commands is to lock the work station. This was implemented without any problem. However, I do not know how to unlock it when the application recieves the unlock command.
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Jul 4, 2010
how can I let VB.Net writes an excel 2007 file? For example, the data in a TextBox will be written to the excel file every 30 seconds.The enviroment is VS2008, .Net 3.5.I've just started VB for one month, so please give me a piece of code to help me understand. I tried to find the solution on the Internet, but none of the codes worked for me, some people mentioned import "Microsoft.Office.Interop" in the code, but if do that in my code, VS said that "Namespace or type in the Imports 'Microsoft.Office.Interop' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases."
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Jan 28, 2010
How can I make code run when an application starts instead of needing an event to happen like a button being pressed or something like that?
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Dec 10, 2009
[Code]...
Basically when I open test123.txt it should countain "Hello World" but not really, only " World" is there.
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Dec 29, 2009
im a independent programmer and my most recent job has me doing somthing ive never had to work with before and i was hoping to get a few answers here or be pointed in the right direction
question 1
is there a way to print to a specific USB port in VB if so links to reading material or better yet code
question 2
is there a way to program to open and send and recieve information from a USB port lpt port and a serial port using VB
and if so can i again be directed to some reading material or better yet code
i understand these are not typical questions but they are a small part of a bigger whole that we are trying to implement while we look into using Vb as the language we will use
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May 30, 2011
I'm writing a Visual Studio Macro and need to read a XML file in my project and write something. i can't get the correct file path! in my web application solution i have to projects for business and UI files. and my xml file named fa.xml located on UI project in a separate folder. i want to use this macro for many solutions. but the structure is the same. How can I get the Path of a file in a specific project in my solution?
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Jan 18, 2011
What I am trying to do is I have a .dat file that I cannot read but can at the same time. What I mean is I know how to decipher it by hand (alas takes minutes per 6 parts and there are thousands.) I am trying to make an application that can read this and allow me to edit it from my computer. I can open this with a hex program such as hex editor neo. I am currently trying to get it so I can read the file and have it place corresponding parts in to text boxes that I can alter to suit my needs.
I am new to visual basic and know a tiny bit about C++ if you think I would be better off trying in C# I can try that as well I do know some since learning c++. There are 41 parts to each item listed in the file and each one would need to go in its own text box. In hex there are 348 blocks that need to be arranged in corresponding order. Also the beginning of the file has 6 block followed by a code for each item. I need to find a way to put all the correct code in the correct text box and have it make sense.
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Sep 25, 2009
I need an application which opens a table from a database(in my project) in a Datagridview. Then it allows me to modify it and save the table. I managed to do all this but when I open the database in my project( with Ms Access) the data remains the same. Why is this happening?
I have all connections working and I am using this code to save:
Me.RegistrationTableAdapter.Update(Me.ContactsDataSet.Registration)I need a reply asap if it is not a problem.
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May 26, 2009
How can I ask my tcpListener to listen to particular IP on specific port? I want my tcpListener to listen to the local IP of the machine. I can get the ipaddress of the pc using Dns.GetHostAddresses(). But, if pc have multiple ip's how can I know which ip address is correct? From tcpClient class I am connecting to the server. So, I know the server ip and so I want to specify ipaddress to my tcpListener class to listen on.
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Jan 15, 2012
I am writing a program that manipulates text file using console application. What I want to do is to delete 1 specific line based on the ID entered by the user.[code]My program should delete the line with the ID DR-02, but my program deletes items from DR-02 to DR-04 instead of DR-02 only.[code]
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