Implement Networking Through .net 2008?
Mar 23, 2009how should i implement networking through vb.net 2008?
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Social Networking Website :: Way To Implement A 'user Search' In Memory (no SQL)?
Jul 26, 2011I'm writing a social networking application in VB.NET, with a target userbase of 1-2 million users. All user data will be in memory in a dictionary of 'User' objects with properties such as Country, Region, Age etc exposed. I need to perform search against multiple user properties in memory - I'm not using SQL.What's the most performant way to implement a 'user search' against multiple properties?
View 1 RepliesCreate Social Networking Site Using 2008?
Jan 2, 2009A peaceful 2009 to everyone! How could i create a social networking site using visual asic.net 2009, i will need reports as administrator, kindly email your answer to {REMOVED}
View 5 RepliesVS 2008 What Approaches Are There For Networking App And Copyprotecting It At Same Time
Dec 7, 2010I have a small application that is currently released. It does not use any database technologies. I built into it some simple copy protection that allows the app to run as a 10 day trial. After this it needs a licence number that I generate based on a code my app provides to the user.This works great for one or two standalone machines but I am now being asked about more flexible pre activated site licencing. Currently this is a bit beyond my skills. I need pointing in the right direction. I assume if I remove my copyprotection and install on a network share, that my app will run.My app also stores some data in the registry which includes the serial number and copy protection data. I could probably switch this to a local file if this helps.What approaches are there for networking my app and copyprotecting it at the same time?
View 1 RepliesVS 2008 Online VB Networking - System.IO.Streamwriter And Streamreader
Jan 14, 2010I made my own advanced networking system which uses System.IO.Streamwriter and Streamreader but offline. I would like to let this use a directory online, I have a webhost available for that, now how do I say to the program it has to look at a specific map with all the users information?
I now have already this into my login form:
Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
On Error GoTo A
[CODE]...
Just curious if I can let my network grow out international instead of pc. Also I have a second question. I made a create account page which is supposted to make a text file with the txtUserName and txtPassword inputs, but it does create the file, but doesnt write any lines into it.
Code here:
Private Sub btnCreate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCreate.Click
Dim UserGenerator As System.IO.StreamWriter
[CODE]...
Use Networking To Access A Database?
Jan 22, 2012Just want a clarification about who to access a database through a network, her's a scenario:there is a client running a vb application, the application starts with a login form, when the user and password is supplied, a new form is shown including a datagridview with data populated from the remote machine running sql server. ide be thankful if u supply a code snippet for the connection part, and ille continue from there.
View 2 RepliesNetworking - How To Return IPv4 Address
May 25, 2010How can I return the IPv4 address in VB.Net? E.g. 192.168.1.5
View 3 RepliesNetworking - Object Initialization Not Working?
Aug 2, 2011why is this code not working?
Dim tcplistener As New System.Net.Sockets.TcpListener
This does not compile with the error "Overload resolution failed because no accessible 'New' accepts this number of arguments." The thing is, I have to declare it as New because otherwise I will get a null-reference exception...
Networking - Send Messages From One Computer To Another Using .net?
Aug 25, 2011i've been wanting to do this for a few years now and it amazes me that no one can come up with a solution.i want to write a program (preferably in vb.net) that can send a message to another computer (or device) that is connected to the same network as me. I want the message to appear on the other computer (or device) in a popup message box. Also, it would be ideal if this could be done through some sort of bluetooth connection, if not then local ip connection will do. I don't know how i would go about doing this but i know it's possible because i've seen some programs do it... in fact i've seen a program called blackrain that without any additional software installed, can display messages on an ipod touch screen to instruct the yser what to do, and then display the results from their input on the computer screen, almost instantly. I would like to know how that works as well if anyone has any thoughts please feel free to share them!
[Code]...
Networking - Sending Messages With TCPClient
Oct 29, 2011I'm realizing a .NET chat application but i still have that error: I can send only a message per connection. For example. With the code below, i can send only one message that can be received correctly by the other peer, but if i send another message message, on the same connection,it won't be received by the remote PC. Here is the code:
[Code]...
Project Networking - Sharing To Other Computer Possible?
Nov 3, 2010I just made my project, I just wanna ask is possible to share your project to the other computer, like file sharing or networking, which you can access your project to the other computer, is that possible? If possible, how should I do that?
View 2 RepliesVS 2005 - What Is Control Or Package Available For Networking
Aug 14, 2009As winsock, in the case of VB, what is the control or package available for networking in .net?
View 2 RepliesVS 2010 Multi Language Networking App
Dec 4, 2011I am a Network Administrator in the Army so programming is not my strong area. I have been messing with Batch files and WMI, just recently i started VB Scripts (VERY BASIC) like adding an input box to set computer name, scan network for computer name on domain, return wmi info for that remote computer etc... I know there are programs out there that can do all of this, however the Army will only allow certain approved programs to be installed on government workstations, i have been using .Bat files to gather info which is fine, however it is very time consuming when you have entire subnets with computers, networked printers, etc to place into a spreadhseet for higher headquarters tracking not to mention the over 20 columns of required data to track for each computer. I have VB 2010 Express, working on a Windows Form Application Project. Goal is to interface my VB Script (written with notepad) with a GUI that will generate an internal spreadsheet on the form window in a datagridview. So far i have the basic window and i have my gridview with my column headers set. How do i get the data into the columns and rows accordingly.
Application Basic: Execute Program, in main window select button (Scan IP Range) <--- I want this to open an input box for the beginning subnet, input base address to start scan from, next input box for end range, then msgbox for start scan. i want the results of the scan to autofill the datagridview and add new row for each IP address that had a ping reply, returning valid data from WMI results as it receives the data. What would be the best method to achieve my goal. i am not asking you to write the program, i have been looking and studying MULTIPLE sites, think i just need another set of eyes on this to unlock the knowledge i have locked away, if ya know what i mean. Also, if you don't mind let me know what you think of this app im trying to turn out... Super Thanks for your help.This is the Base Batch File running. It calls an external VB Script written in notepad. (I want this implemented into the app form so there is no console window.)This is the inputbox from external VB Script that is called.This the result of the external VB Script (the info i want to put in the datagridview of the app.)I also, for some reason can't get scroll bars to show in the app when i hit F5, theres about 15 columns passed the MAC column...?
Access Database Path On A Networking Computers
Apr 18, 2012Am working a vb.net 2008 project using ms access database 2007 and i successfuly finished it. i published the project and burnt it with cd. my database path in vb.net was located c:Deploydatabase.accdb.
so i installed the program in to another 2 networking PCs. when i run them and put the database path c:Deploydatabase.accdb in every computer, its working. but the problem is that:
i need the database to be accessed by server or my machine for instance where every other networking computers are able to access my database in this location of my machine (my be as defualt) without not putting it to their pcs.
This enables me to see what every machines users can add information to the program.
for example, i have got 10 computers networked each other (i.e comp1, comp2, comp3, comp4, comp5, comp6, comp7, comp8, comp9, comp10). i have installed the program in every computers so when/if comp1 adds/edits informations to the program, then all other computers are capable of receiving this information which means comp4 can see what comp1 has entered in the program.
Monitoring Total In / Out Internet Networking Flux?
May 16, 2011Is there a way to monitor and determine the total in/out flux from and to the Internet (not just one port or one program)?
View 2 RepliesNetworking - Getting A Path To Public Documents On Server In .net App When Run From A Workstation?
Jun 2, 2011In our VB.Net application, we need to get the path to our data folder in Public Documents. In our standalone application this is straighforward using the SHGetFolderPath function. However, for our network application, we run into a problem when we load the application on a Win 7 server and run it from a Win XP workstation. From the workstations, SHGetFolderPath returns the workstation's public documents folder instead of the what we want, which is the server's public documents path.Is there any way within the application to query the public documents path on the server?
View 1 RepliesVS 2008 How To Implement A Silverlight Control In Vb 2008
Dec 23, 2011I want to build a flip clock for my vb 2008 form.But I cant seem to get it done.So I searched and found a flip clock control for not Vb but silverlight.Here is the link
[URL]
Is there a way I can use this clock in my vb form.
VB 2008 - How To Implement The Keyword, Me
Dec 16, 2009I am working in vb2008. how to implement the keyword, Me. I see it used in code examples but when I try it, it does not work.
View 3 RepliesVS 2008 How To Implement The IBindingListView
Oct 19, 2011I have a custom object that I would like to turn into a Collection that could then be used in a BindingSource. From what I've read, I can Inherit Collection(Of T) where T is my specific object. Then I can Implement IBindingListView. This is all great, but I have no idea how to actually use the IBindingListView Interface. I know I want to be able to sort and filter my collection, so I have the following.
Imports System.ComponentModel
Public Class ChemicalCollection
Inherits Collections.ObjectModel.Collection(Of Chemical)
[code]....
As you can see, I haven't really done anything other than let Visual Studio fill in the required properties and methods when I implemented the interface.
Implement Clickonce Like In 2008 In 2003?
Sep 16, 2010i would like to ask if it is possible to implement clickonce like in vb2008 in vb.net 2003?..example:i have a button "Update" in my application running on local machine...if i click it it will check the remote server if there is an update of that app.if yes then download it an change the application on local machine...
View 22 RepliesVS 2008 - How To Implement New Encryption Algorithms
May 28, 2009I want to try and use the new encryption algorithms provided with .NET 3.5. Any links or examples for how to use one of them to encrypt xml content?
As written on msdn site is:
The following algorithms are included:
Advanced Encryption Standard (AES) with key sizes of 128 and 256 bits for encryption.
Secure Hash Algorithm (SHA-256 and SHA-384) for hashing.
Elliptic Curve Digital Signature Algorithm (ECDSA) using curves of 256-bit and 384-bit prime moduli for signing. This algorithm is provided by the ECDsaCng class. It allows you to sign with a private key and verify with a public key.
Elliptic Curve Diffie-Hellman (ECDH) using curves of 256 and 384-bit prime moduli for key exchange/secret agreement. This algorithm is provided by the ECDiffieHellmanCng class.
VS 2008 Implement Multiple BackGroundWorkers?
Mar 24, 2009I am making an application that has a tabbed interface. Each tab uses a UserControl with the controls that I need on it. The user enters some data & clicks a button, which starts a lengthy process. I would like to run that process in a BGW, so that the user can switch to (or open) another tab & process another set of data simultaneously.
View 7 RepliesCommunications :: 2008 - Implement A Barcode Reader ?
Aug 10, 2011I am wondering how to implement a barcode reader on vb.net 2008. I haven't started creating a program yet. I have only these simple questions
How to declare Barcode Reader on vb .net?
If I want to scan a product on the barcode reader how to catch the data that is being scanned?
VS 2008 : Infinite Undo/redo: How To Implement It
Apr 4, 2011basically add and remove text and selection information from a stack. Result: When using Undo/Redo the selection got messed up, the text moved, sometimes causing lag of epic proportions. I need a way of having complete and smooth undo/redo class for storing all information I would possible need.How to know whether or not to add an undo stack is easy, I just checked if the user clicked in the text or moved using the arrow keys. As soon a previous marking was given for "next text change needs to be backed up", it was backed up. At that point I stored the RTF and selection start/length. What do I have to store of a RichTextbox control to be able to restore it to a previous state, and how can I reset it back to a previous state? See it as having a "RichTextBoxState" class:
Public Class RichTextBoxState
Sub New(ByVal RTB As RichTextBox)
Me.text = RTB.RTF
Me.selectionstart = RTB.SelectionStart
[code]....
After restoring it must display the EXACT same thing as when it was saved as a state.
VS 2008 - Implement Event To Detect User Inactivity
Jul 30, 2011PROJECT TYPE: Windows Forms Application
LANGUAGE: Visual Basic
.NET VERSION: 3.5
IDE: Visual Studio 2008
OPTION STRICT: on
OPTION EXPLICIT: ON
I am developing a parental control application containing a feature that logs a user off of the computer after an administratively set period of time. I do not however want the application to continue counting time against the time limit when the user is not active on the computer. EXAMPLE: Child logs on and is active for an hour then leaves computer for 45 minutes to get dinner. The session timer needs to ignore the 45 minutes of inactivity. I have thought of two ways to accomplish this.
1) Use a SystemEvents.SessionSwith event (to detect the Start Menu > Log Off > SwitchUser action), or
2) Use an event which would detect user inactivity in excess of a set time, e.g. 5 minutes (similar to a screensaver).
Either event would call a method which would simulate a pause feature (as StopWatch and Timer have no pause support that I know of). I believe the 2nd option would prove to be more universally affective as 1) some users do not have Fast User Switching enabled, and 2) users would be required to manually switch users in order to prevent their inactive time from counting against them. My problem arises when I attempt to implement one of these methods. According to the IntelliSense error checking engine, I have absolutely no clue how to do either of these tasks in spite of the research I have conducted on the topic. I would prefer to go with the system idle time approach.
2003 Upgrading To 2008, Implement The New Data Features In An Application?
Dec 17, 2008I am upgrading from Visual Studio 2003 to Visual Studio 2008. ow I should upgrade my project.My project is in Visual Basic.Net, and using an Access 2003 Database. I have four datasets, MainDataSet (for the main data tables) LookupDataSet (for lookup tables States, Countries, Colors, etc) OneFormDataSet (data used on only one form) and ReportsDataSet (data used for reports).I have one form "OleDbAdpatForm.vb", that has all the OleDbDataAdpaters for my project. It also has the DataSets and the OleDbConnection.I have public functions that enable me to load the data tables.
I have a LoadTable function when I can pass a column and a value, and the SQL select command is updated with a WHERE or HAVING, so only the requested data is selected. I also can pass the whole "WHERE ..." part of the SQL select command, so I can have multiple parameters in the SELECT command.On my other forms, I have copies of the DataSets, so I can design grids/controls. In the form_Load events, I manually bind the controls to DataSets and tables in located "OleDbAdpatForm.vb", so all forms are using the same data tables, and changes made to data in one form are reflected in data in other forms.The VS 2008's DataSources, BindingSources and TableAdapters seem much easier to use. how I should implement the new data features in my application?
VS 2008 - Implement The Mdi Parent / Child Associations Rather Than To Go And Declare Them Each One Individually
Aug 24, 2009I have been developing an application for quite some time now. I have decided to create an mdi parent form to hold all the windows I have done so far. Is there an easy way to implement the mdi parent/ child associations rather than to go and declare them each one individually.
View 7 RepliesImplement Calendar With .net Express 2008 And MSSQL 2008 Express?
Sep 21, 2009how I can implement my calendar with VB .net express 2008 and MSSQL 2008 Express. How do I get it to work with datasets, binding source etc.If I go to Properties>settings my connection string is:
Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|CalendarDatabase.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True
and I have a table with fields:-
CalendarID
Subject
Location
Purpose
[code]....
I can Add the event to the calendar I have the necessary items on my form linked to my table and I can save them to my table:
Me.Validate()
Me.CalendarTableBindingSource.EndEdit()
Me.TableAdapterManager.UpdateAll(Me.CalendarDatabaseDataSet)
But I cant keep the event displayed on my calendar when I close it and open it again.
VS 2008 What Is CLR / How Does VB 2008 Implement It
May 21, 2009I read about CLR in a computer forum. Can anybody give me some example code in CLR (SQL Server 2005)? And does CLR have anything to do with stored procedure in SQL Server 2005?
View 1 RepliesVS 2008 Implement A BGW And Want To Report Progress To A Progress Bar For TextFieldParser Program?
Feb 14, 2012I am trying to implement a BGW and want to report progress to a progress bar for my TextFieldParser program, sometimes if your opening very large files it takes a while and I would like the user to be able to see the progress and have some interaction so they know the program is still running I am a little hung up on what to in the reportprogress
I have:
worker.ReportProgress(0, myReader.ReadFields())
and its not doing anything, I didnt expect it too since ReadFields is an array
parser
Private Sub BackgroundWorker1_DoWork(ByVal sender As Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
Dim worker As System.ComponentModel.BackgroundWorker = DirectCast(sender, System.ComponentModel.BackgroundWorker)
[code]....