Created System And Would Like To Connect It To LAN
Sep 2, 2011my system is already working. I used VB.net and mysql. i used ODBC DSN to connect .net to mysql. however i would like my system to run in a Local Area Connection.
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.Net: Connect SQL Table To Programmatically Created DataGridView?
Dec 17, 2009how to connect a SQL Table to a DataGridView that was previously created programmatically. Basically, at run-time the user names and creates several empty SQL Tables and DataGridViews. After that the user selects from a combobox the name of the SQL Table and DataGridView that they want to import data into, then clicks a button named "Import"...after clicking "Import" the user navigates to an Excel file, chooses a worksheet, clicks a "Continue" button and then the code successfully connects to the Excel import file and SQLBulkCopies the data to the SQL Table...next I need the imported data in the SQL Table update to the DataGridView...this is the part I can't figure out.
The challenge is the datagridview isn't hard coded it was created and named programmatically at runtime. So now the user selects the name of the SQL Table the data resides in and the name of the DataGridView from the combobox "moduletableCB" and I need the code to update the datagridview.
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Connect To A Code Created Dataset And Table?
Aug 13, 2009I have a search page in my application where I am searching the database for the records that meet the specified conditions that the user selects. All of this works by creating the dataset, datatable, and dataadapter in the code. I then take a created bindingsource link it to the created datatable and then attach the bindingsource to my datagridview to display the results. Now what I am trying to do is to figure the Mean, Median, Mode and Standard Deviation of the results that were found above. My question is how to I run a select query on the code created table. I have the select query I want to use and when I try to use it in the code it talks about the connection. Now I have a dataset that is part of the project and I have the on just for the search page. Let me know if you need any code samples.
View 10 RepliesHow Is A Strong Authentication System Created
Mar 6, 2012I am trying to make a strong (or even medium-security) based authentication. How this would work is simply by storing a username/code on web (using dropbox perhaps) then using those codes to pass on to friends to use. This way if you remove that code online,that person will no longer be able to access that program. As far as I know, it is quite simple to save the number of uses, or username and pass on a text file to save on their file or registry things can be done but that is only 1 computer based. That is a very easily crackable security and is not worth it.As far as I have know you need to create a new main form where the code/ id/ username/password/onetimelogin will be asked. If it is correct, form2.show if not then "exit". The codes are stores on a text file on dropbox.com like websites, then the link to the textfile is obtained.
View 3 RepliesConnect A Webcam Into Our System?
Dec 2, 2010What is the proper way to connect a webcam into our system?
Purpose: To record / save a video files using a webcam
Objectives: To Learn Advance On VB.NET Languages
Significance Of The Study: For being basis/example to us programmers especially to all beginners programmer.
Created A System Whereby The Database Is Connected To Using The Preset Tools Available?
Jul 2, 2009I have a connection to an access database, I have used the data sources tool provided because in this particular instance I don't want to do much with it other than display the records (which I can do) and edit them (which I'm haveing some trouble with).I have created a system whereby the database is connected to using the preset tools available like; BindingSource, TableAdapter, BindingNavigator etc.
I also have a button for edit. This doesn't work and I was wondering if anyone could help me with this? I can't really provide any code for this, because I didn't code the connection by hand and the code I have been attempting to use for editting the records in the database doesn't even sort of work.
Variables - Created An Application That Communicates Via System.net.socket
Nov 9, 2011I Have a problem with vb.net. Basically I created an application that communicates via system.net.socket. on the server side of client connect, and a thread checks whether there are new incoming data. if there are data, puts them in a few tread declared variables, together with the "index" of the server. once this is done through "INVOKE" calls a routine that checks the incoming data andperforms an operation based on the data. I'll see what I do not work
Dim returndata As String = System.Text.Encoding.ASCII.GetString(data)
TextBox1.Text = ("DATA : " & returndata & "Socketindex =" & socketindex.ToString & " Index=" & index.ToString)
But that does not appear in the texbox, appears only "returndata", the rest c 'is same thing with the messagebox, individually, can display a messagebox with variable,but when I try to make a messagebox that displays them together, the texbox same thing!
And the same thing if I want to compare them with each other, for example
if index
= 0 then msgbox ("OK")
It does not work ...
Connect Device With System Design?
Aug 11, 2009I have 1problem...i want to connect device and then the device can display the output in mysystem design.the system is for display value output in decimal.so,how to create code for the projek?and than the device use port usb...how to connect device with my system?
View 4 RepliesConnect To MailEnable With System.net.mail?
Mar 8, 2010I am trying to send an email by using my MailEnable email account but this code produces the following exception:
"Syntax error, command unrecognized. The server response was: Welcome to MailEnable POP3 Server"
If I use port 8080, I get a timed out exception.
Private Sub SendWebMail()
Dim myServer As New SmtpClient("listserv.company.com", 110)
myServer.Credentials = New System.Net.NetworkCredential("Alert@mmail.company.com", "Password369")
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Connect A Database (created In Access 2010, Saved In An XML Format And Put On Website) To A Login Form In VB 2010?
Jul 16, 2011it's just for a program registration. i would store all of the registration codes in the access database, then export it to XML, then upload it to my web host. I would then somehow connect it to my Visual Basics login form (Which I have already made). If this can't be done, having them register through the form and having all the allowed codes on the internet (So i can easily edit them)!
View 5 RepliesConnect Linux Remote System And Run A Command Using .net?
Jun 13, 2011I want connect my linux remote system using ip address and port through .net. and want run a command to run a file inside the remote system
View 5 RepliesConnect Login System To Access 2010?
Feb 27, 2011how to connect login system using vb.net to Access 2010?.
View 3 RepliesWith Calling Dll - Created In C++ - Error Message - An Unhandled Exception Of Type 'System
Jan 28, 2010I have problem in calling DLL file in VB.Net that I had Created it in C++... it give me this error message: "An unhandled exception of type 'System.EntryPointNotFoundException' occurred in test_dll_1.exe. Additional information: Unable to find an entry point named 'add_1' in DLL 't1.dll'."
This is my code in C++ (header file)
[CODE]............
The one in the main
#include "header_1.h"
double add_1(double a, double b){
return (a+b);
[CODE].....................
This code only for creating dll and I did created it correctly and i had tested it in c++ and it did works.... but in the Vb.net I had no luck with it...This is the code that I wrote it in the VB.net
Imports System.Runtime.InteropServices
Public Class Form1
<DllImport("t1.dll")> Public Shared Function add_1(ByVal a1 As Double, ByVal a2 As Double) As Double
End Function
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And, I did put the .dll file in the bin folder, but also with no luck...
Connect To My Database From Server Without Share System Drive?
Apr 19, 20101- I've a database access without password on the Server.I've created forms by vb.net to connect to database through OLedb Connection *like this
PHP
Dim Connec As New OleDbConnection("provider=microsoft.jet.oledb.4.0; data source = \Serverc$xDB.mdb;")
my problem is : I worte : if I want to connect to database from any pc I must save Username and password to control userpasswords2 (soted user name and password from User accounts)that's big problem , so I must save this to all client pc and the client can access Server system Drive there are no security ,this is the fifth day to find a way to connect to my database from server without share system drive.I tried to used it but not working.where can I write server name and path database and server's User-name and password.I've an exe file on server drive like this \Serverc$1.exe
I want some client to run this file with out share the file.If I can to creat a form by vb.net has a Username and password to run this exe without client know the userName and password.I'found map network , but is not ok for me.If I mapped network drive to client, then he can copy files and read some of security data.Is there a way to access this file from server without mapping or sharing folder for public ?
Connect To Sql Server 2008 R2 FILESTREAM From Remote System?
Jul 2, 2011I'm developing a online document management application for my client using the following technologies
Front End - VB.Net 2010 (Windows Forms)
Back End - SQL Server 2008 R2 Express (FILESTREAM enabled to level 3)
I wanted to store the files (*.pdf, *.doc, *.exe, .) using the FILESTREAM feature in SQL Server 2008 R2.I prefer FILESTREAM because sometimes the file size exceeds 2GB.I'm able to save and retrieve file with FILESTREAM (using Windows Authentication/Integrated Security).But my client wants to save or retrieve the file from different PC.So I'm in need of accessing the FILESTREAM BLOB from remote systems.
Unable To Connect SQL Server 2005 Running On Local System?
Aug 19, 2009An Error has occurred while establishing a connection to the server. When Connecting to a SQL Server2005, this failure may be caused by the fact that under the default settings SQL server doesn allow remote connection (provider: Named Pipe Provider, error: 40- Could not open a connection to SQL Server)I want to connect to the SQL Server 2005 Express Edition which is running on my system from a VB.NET application. I am using Visual Basic 2008 Express Edition. Here is the Coding,
Dim sqlConn As SqlClient.SqlConnection
sqlConn = New SqlClient.SqlConnection("server=localhost" & "initial catalog=LIB")
Try
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Connect To Access Db File From VS2020 (can't Find System.Data.OleDb)?
Dec 9, 2010I have been programming vba for some time and am now starting VB.NET. I need to connect to an existing access db file (access 2003). I downloaded VS2010 and found an example on the net. Here is most of the code:
Imports System.Data.OleDb
Public Class Form1 Inherits System.Windows.Forms.Form
Dim cn As OleDbConnection
Dim cmd As OleDbCommand
get the argument for the desktop of the user
I am getting this error message:
1 End of Statement Expected
I have tried to add a reference to System.Data.OleDb but it doesn't appear in the add reference box. System.Data.OleDb is checked in the Imported namespaces window. I have tried changing the .NET Framework but, no help.
VS 2005 Connect To A Remote Server And Copy A File To Local System
May 27, 2009I want to know how to connect to a remote system having some shared folder.(ex, \myservermysharedfolder).Actually, I was supposed to copy a particular file which is available in a shared location of a system. To copy that file, first i need to connect to that system with an user id and password.I know copying of file (), But not getting clear idea on how to connect to the shared folder. I have tried with System.Management class, but no use..
View 2 Replies"Connect Program To Sql Server Database In Local System"?
Apr 23, 2008How to write code for connection vb.net to sql server database in standalone system.
View 5 RepliesDim Connect As String = System.ConfigurationSetting.AppSettings("connstring")
May 30, 2006I was using VB2005 and i noticed that when i do this
Dim connect As String = System.ConfigurationSetting.AppSettings("connstring")
I am told that is an obcelete way of connecting to my DB through my app.config file....and it refers me to the Configuration manager????? Any help on this topic???
Vodafone Mobile Connect Starting - Error "System.IO.FileNotFoundException: The Specified Module Could Not Be Found"
Apr 26, 2012When I try to start a USB Modem application, which was working normally by the way, it gives me this message.
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Make A Login System Mysql Try To Connect To A Mysql Database?
May 3, 2010I am trying to make a login system mysql try to connect to a mysql database.
Here is my code:
Imports MySql.Data.MySqlClient
Public Class LoginForm1
Dim MySqlConnection As MySqlConnection
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
MySqlConnection = New MySqlConnection()
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Open Html Files In Internet Explorer That Is Created In Editor That Is Created?
Jul 26, 2011I have an editor created invb.net that creates html files. And when i click the button run , the Internet Explorer opens my file that is inside the Richtextbox.
View 3 RepliesVB 2010 Express Compiler Error "Class 'CLSID_CorSymWriter' Could Not Be Created: System Error &H80040154&"
Jun 12, 2010I get the following error when trying to compile the simplest prpgram. Error 1 Class 'CLSID_CorSymWriter' could not be created: System Error &H80040154& After looking at other stuff on the net I removed VB 2010, VB 2008, any C or C++ runtimes and any .NET Framework programs I could find, and then re-installed VB 2010, but the problem still persists.
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Application Can't Connect To Local MySQL But Can Connect From Command
Sep 30, 2011We have a VB.Net application which works fine in our tests in different Windows XP SP3 machines. However there is one machine in which is displaying this error:
Unable to connect to any of the specified MySQL hosts
Using the mysql command, we can successfully connect to the database. We already checked for any other application or firewall that could be blocking the connection but it seems fine. We also reinstalled the system (no errors during the installation) but the MySQL error message doesn't change.
The system settings are exactly the same as in the other computers. We are using "localhost" as server in the connection string. The "hosts" file has its default values (nothing strange in there).
Cannot Connect To Microsoft Life Cam (but Can Connect To Built In Webcam)
Jan 16, 2012I'm working on an application where I'm using an webcam image. I have code that works when using the built in iSight (It's an Apple running boot camp windows 7) camera. However after installing a second USB powered Microsoft Life Cam I am unable to connect to this second camera. When runnign this code I only ever get one input device:
Private Sub LoadDeviceList()
Dim strName As String = Space(100)
Dim strVer As String = Space(100)
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Perform An Action On Clicking A Custom Context Menu Created In Excel Using Excel Add-In Created With Visual Studio 2010?
Apr 14, 2012I am creating an Excel Add-In using Visual Studio 2010. My intention was to add a context menu to a cell and perform some action on the selected cell or cells. Here is the code I have got as of now
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Can't Connect To MySQL - Unable To Connect To Any Of The Specified Hosts
May 29, 2012I am trying to connect to my remote MySql Database within Visual Studio using the compact framework.
I can successfully add a data source and preview the data within the IDE so assume that the connection is ok regarding Connection strings and remote access.
However, when I attempt to access the data using any run time control I get the following error when the table is loaded using the .fill method.
MySql.Data.MySqlClient.MySqlException was unhandled
ErrorCode=-2147467259
Message="Unable to connect to any of the specified MySQL hosts."
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Declaring A Object - Instance Of An Object To Be Created When A Form Loads Or Another Class Is Created
Oct 5, 2009If you want a instance of an object to be created when a form loads or another class is created, you have two options:
Public class example
private IAmAObject As IAmAObject
public sub new()
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Or like this:
public class example
private IAmAObject as new IAmAObject
public sub new()
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I always use the first one. It's more type work but I think it's neater. How about you people and is there any real difference between the two?
Access Objects On A Dynamically Created UserControl An A Dynamically Created Tab Page?
Dec 5, 2011I can usually find the answers to most of my questions via the Google Gods, but not this time.I have a form that has a TabPageControl and on that page a collection of labels and text boxes via a usercontrol.
On the form I have a button that allows the user to create a new tabpage, when the code adds a new page, it automatically adds the UserControl collection. I can't get my head around how to access the objects on the newly created tabpage.
What I need to be able todo is take the index of the tabpage that has focus and translate that against the UerContol name, but I havn't a clue how to do it!
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