Connecting To Mysql In .net?
Mar 27, 2012
im trying to connect mysql from vb.net in visual basic 2010. i wanted to query the db just to get 1 return is response to my proID once i click the button. it successfully show connection has been establish but i cant seems to run any sql query on it. what might have been wrong? this is the error i got from immediate window.A first chance exception of type 'System.InvalidOperationException' occurred in MySql.Data.dll.lets assume num is 1001 from the keypress event.
[Code]...
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Nov 15, 2010
i am trying to connect to 10 mysql servers and get aprox. 5000 rows. If i make the test from local network it works but if i take the test using mysql servers (same version) from different city it shows me the error "Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding".[code]
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Jun 21, 2010
I think I already know the answer to this, but just to be sure, is there any way to connect to a MySQL database in VB?
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Jun 14, 2010
I have a VB.NET application and I need it to be able to display rows from a MySQL database. How would I do this?
Update: Another thing that I could do is have the app get a PHP page from the site that shows the DB, and gets the page every 10 seconds or so.
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Sep 19, 2011
I'm having some trouble setting up a working connection to a mysql database from Visual Studio 2010.After downloading and installing the mysql-net connector, I set up a simple testing database in Xampp and experimented around a bit until I managed to read some values from the database and inserting new ones.I'm trying to access another database on a remote server and all I get is an error message: Unable to connect to any of the specified MySQL hosts.Basically, I'm only trying to execute this code:
Dim con As New MySqlConnection("Server=111.11.111.111;Uid=root;Pwd=mypwd;Database=mydb;")
con.Open()
con.Close()
(server ip looks a bit different of course)When I access my local database, it looks quite similar:
Dim con As New MySqlConnection("Server=127.0.0.1;Uid=root;Pwd=;Database=test;")
con.Open()
con.Close()
Nevertheless, I can access the remote database easily using a simple PHP script... no problems there.
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Apr 5, 2009
i want to make a program that connects to MYSQL and interacts with it (using VB 2008).For Example: i make a program that connects to the database and edits a few things like Row 2 , Colum 5 = 2 for example?
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May 30, 2010
[URL]
I have some hosting from [URL] so I set up a mysql db there. the actual db info is:
hostname: db2054.perfora.net
db name: db298669245
username: dbo298669245
[Code].....
The error is get is: "Unable to connect to any of the specified MySQL hosts."
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Feb 15, 2010
Connecting to a Online MySQL Database using .Net?
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Feb 8, 2011
i got some problems with my connection to a MySQL database so this is my code:
Dim conn As MySqlConnection
'connect to DB
conn = New MySqlConnection()
[Code].....
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Jul 20, 2009
Ive been trying to connect to the MySQL database located on my website using vb.net 2008 express... i have been failing, when i run my code i have i get the following error,
ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
That error comes from this code,
Code:
Dim connectionString As String = "Driver={MySQL};SERVER=coolness.something.com;DATABASE=Citys;UID=admin;PASSWORD=p975311;" '
Dim conn As New OdbcConnection(connectionString)
[code].....
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Nov 11, 2008
I got this Database that is Online thats hosted through the Website and uses MySQL, and the Tables have some Data I like to Read From. Heres what I got
vb
Public Sub testconnect()
Dim sqlconn As String = "Server=63.247.93.106;Database=viina_schoolbook;User=---; Password=---;"
[Code]....
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Jun 23, 2011
I have developed a frontend app using VB 2010 which is to connect to a remote MySQL server. My server has an internal IP address of 202.56.20.72 and an internal IP address of 192.168.20.44.
When I use the internal IP in my connection string and connect over LAN, the whole thing works fine. But when i changed the IP to the external address and tried to connect to the server over the internet, I get an error something like 'Failed to connect to MySQL server for user 'user'@'localhost', [using Password=NO]. This means that for some reason, it is not connecting to the server at all.
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Feb 7, 2012
I have some hosting from wampserver so I set up a mysql db there. the actual db info is:
hostname: ip address db name: root username: version: MySQL5.0
pw:
VB.net CODE
conStr = "Server=ip address;Database=dbname;User Id=root;Password=;"
or there is another way to connect pc1(server) and pc2(client) using wampserver?
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Mar 20, 2012
My Project is successfully running,. it can even load the data onto my tables from MySQL database
but the problem is,. when i open my reports which is CrystalReport based,. it prompts for a Database Login,. I am using Windows 7 64bit and Visual Basic 2008 with the latest MySQL Server.
On my CrystalReport1.rpt when i click the Main Report Preview,.ODBC (RDO) pops up asking for Data Source Selection,. i tried filling up the connection String with:
[Code]...
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Apr 24, 2011
I can connect/login to my database, view a formatted table in the current window, however I want to click a button and see a new table set in a new window. Theoretically I should be still logged in/connection information saved but however I get 'unable to connect to database'.
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Feb 24, 2008
i am getting this error:
Code:
[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
When trying to connect to my database using the mySQL v5 drivers. I had the version 3.xx working fine until i installed the newer 5.0 drivers....
Code:
conn = New ADODB.Connection
With conn
.CursorLocation = ADODB.CursorLocationEnum.adUseServer
[code]....
But i can not seem to find the "correct" connection string for use with version 5..
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Mar 23, 2009
I'm new to Visual Basic. I'm currently working on my school project which is basically just managing records. I'm using MySql as my DB and mysql-connector 5.2.5 as my connector string. and I have this code (connects to db and adds some data in the db using textboxes)[code] problem is every time I click that button (button3) I get the Exception message.what seems to be the problem with my code? I have tried this code in my login form and it works fine there but in here, in this current form it doesn't work.
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Oct 3, 2011
I want my vb application to communicate with a MySql database on server on a LAN. What connection string can i use? Also, what syntax can i use? My application is installed on many computers in LAN with one central MySql database. I want all data to go to the database.
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Dec 15, 2009
<Imports System.Data.SqlClient
Public Class LoginForm1
' OK button [code]....
End Class/>this my code to conecttin to the mysql via windows application with login form but i will see this con.Open( getting yellow
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Mar 27, 2012
how to connect a visual basic front end with a MySQL back end. I am not proficient in VB or MySQL and was not able to find anything on google as a result.
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Jan 6, 2011
I have a MySQL database online. What do I need to connect to it and exchange data?
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Nov 2, 2009
i have a website www.aybydinnovations.com.I setup a new mySQL Database into my webserver.I am developing vb.et application that will connect into that database from my webserver.
Here is my codes:
Imports System
Imports System.Windows.Forms
Imports System.Net.WebRequestMethods
Imports MySql.Data.MySqlClient
[Code]...
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Jun 20, 2010
Is there any way to have the program still run efficiently when connecting to an mysql database? Would System.Windows.Forms.Application.DoEvents() work anywhere?I have it connecting every 3 seconds on a timer and during that connection the program locks for a second.
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Nov 18, 2009
I have a problem here I did make database program for a friend the database is online Mysql I use Visual Studio and put this into setup.exe when he install the program and try to log on he get this error This is my connection to the database
[Code]...
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Jun 10, 2010
I have a MySQL database I've created for my website, [URL]. I want to query the database, but I am unsure how to connect.
This is the code I'm using:
Code:
Dim sConnection As String = "Provider=MySQLProv;Data Source=my_database;User Id=my_user;Password=my_pass;"
Dim bSuccess As Boolean = True
[CODE]............
The MsgBox() returns a message that says: "Error: The 'MySQLProv' provider is not registered on this local machine". All I want to do is access the table in my database, is it possible? (also, without installing anything additionally?)
Does the .NET framework include ways to access MySQL databases easily?
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Sep 12, 2007
I'm getting the following error while attempting to open my MySql connection:Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.I've included my code below with the offending statement italicized:
Dim mySqlconnection1 As New MySqlConnection
mySqlconnection1.ConnectionString = "Database=prof_dev;Data Source=helpdesk;User ID=wayne;Password=1961"
Dim SelectQuery As String = "Select * FROM employee"
[code]....
It appears that I'm just not connecting with my MySql Db. Any ideas??? I'm certain that I' m using the correct information in the string.
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Apr 11, 2011
I have determined thanks to the last q & a that there is something wrong with my "save to db" code as well as my "retrieve to picture" code. Even If I manually save the pic in the db it stil wont retreive. This is code i patched together from 3 or 4 examples around the net.
Dim filename As String = txtName.Text + ".jpg"
Dim FileSize As UInt32
Dim ImageStream As System.IO.MemoryStream[code]......
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Sep 22, 2009
MySQL databases exists for saving values as strings (text only). Is there any way that i could store files with the same speed as a mysql command ? I know that it depends on the file size but lets say that the file is "Avatar.jpg" 50KB... I ve tried FTP but this is not what im looking for. e.g. You want your users been able to upload a file like the [Add This Attachment] button does in dreamincode.net and you dont have any background on PHP/HTML/Javascript/ASP.NET just VB.NET and the basics of MySQL plus you dont want to use it for a website. How do you accomplish this? Something silly that ive tried was opening an image as text then update the mysql server with that text but it didnt work backwards after i wrote the text on the file and oppened it ...it said that the image was corrupted.
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Jun 21, 2012
What i have going on, is i have a MySQL connector as a resource on my application, and im basically trying to connect to my MySQL server, to either a) register a new account, or b) check that the account exists and they are premium, and login, Now what i have run into problems with is: My MySQL Database Name has a _ in it which VB is not allowing for some strange reason.
The code i am using is below
Imports MySql.Data.MySqlClient
Public Class Form1
Function UpdateRecord(ByVal query As String) As Integer
[CODE]...
How i can allow the _ into the application, because the only databases that don't have a _ in the user or dbname are a) Paid ones which i DO NOT have the money for or self hosted ones, i cannot leave my computer on 24/7
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May 3, 2010
I 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()
[code]....
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