I create an application in VB.net which connects to MySQL, deployed it to 10 computers. 8 of them worked perfectly, 2 of them gave me the error:Unable to connect to any of the specified MySQL hosts.What was different with those 2 computers? Is there any setting I need to do on the MySQL server itself? Anything I need to change/update on those two computers?
View 4 RepliesI've created an application that inserts data into an MySQL database, I have used xampp on the local machine to make sure that the database worked with the application and that everything worked correctly
now when editing the connection string so that I can connect to a remote machine on my LAN I keep getting an error saying "Unable to connect to any of the specified MySql Hosts"
I've checked all the credentials in the connection strings I.E username, password, database name and the machine address.[code]...
Unable to connect to any of the specified MySQL hosts. My code is as follows:
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I have checked and double checked username, password, database name, and server. I am new to using MySQL etc., but I pulled the information directly from my phpMyAdmin.
I 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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I'm connecting to my mysql server using ODBC in vb.net, the database is shared throughout the company because it is used in an accounting program (simply accounting), each user has their own account user/pass to login to the database. I have developped a program that uses the accounting database and combines it with other information, my problem is that at least once a day I get this error when I run my program: "(10061) ERROR [HY000] [MySQL][ODBC 3.51 Driver]Can't connect to MySQL server on"and the error persists for at least 4 hours, for some reason it starts to work again later on in the day.
View 1 Repliesi installed visual studio ( full installation)then i got xampp from their site i have mysql and apache running i downloaded the connector from mysql site and i created a simple project to check if i can connect to mysql or not i have made this code so far
Imports System.Data.SqlClient
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim Connection As String = "Data source=localhost;user=root;password=;Initial Catalog=test;Integrated Security=true;"
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im having trouble with an exception though it says {"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)"}
how can i get rid of this, is it because i installed mysql 2005 with visual studio 2008? and maybe it runs with xampp's mysql and creates these problems?
I have written a new app in VB.net as a front end to a mySQL database held on a PC on the LAN running Windows XP. This worked fine for a while. The PC running the mySQL server started locking up (XP errors, not mySQL errors according to the event logs), so I decided to have a go installing Ubuntu to run the mySQL server to see if that was more stable.Ubuntu 11.10 is now installed, and mysql server is also running. I have imported the old sql database files and the mySQL workbench shows all tables are imported successfully.
HOWEVER, I cannot get my VB application to connect to the database now it resides on Ubuntu - just returns "Unable to connect to any of the specified MySQL hosts" when i try to open a connection. I am fairly new to Ubuntu and MySQL, and don't know if the fault lies with the O/S (a firewall config problem perhaps?) or if I need to do something different with mySQL.I can ping the Ubuntu pc from the client pc and vice versa.I have used ufw to open port 3306 on the server The ufw logs do not show any errors when I try to connect from the client pc, so I don't think it's a firewall problem (but could be wrong). I thought it may be something to do with the usernames I use in the connection string, but when I change these (deliberately use the wrong password for example) I get the same message, rather than a username/password error Is anyone else using a client PC running Windows (W7 or XP) to connect to a mySQL database running on a Ubuntu server?
I have created a server-client application in Vb.net with back end Mysql .In client while am trying to run its showing the following message
"Unable to connect to the specified MYSql hosts"
I've gone through different sites and got ideas about how to connect MySQL but it didn't work.
Imports MySql.Data.MySqlClient
Public Class Form1
Dim con As MySqlConnection
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odbc driver not found unable to connectmysql 5.1 odbc already installed and i have the following code to connect mysql
Imports System.Data.Odbc
Conn.ConnectionString = "DRIVER={MySQL ODBC 5.1 Driver};SERVER=localhost;" + "DATABASE=apdata;UID=root;PASSWORD=acelle;Port=3306;"
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Uneable to connect to BBDD MySql in Virtual Server with Parallels Plesk Panel.
Does any one know how to connect to a Parallels Plesk Panel Server (my host is 1&1)?
I am probably beginner to intermediate at coding now, and want to make an application that interacts with a mysql database on my website.The application would be a Windows 7 App (Windows Forms) and i would like to contact the MySQL database and search and insert etc into it.The problem is my MySQL only allows contact from certain IP address (which you can add, but i cannot add "all")I am looking for advice on methods i could use to interact with the Database on my website, from an application which could be used by multiple users anywhere in the world.
View 6 RepliesI am trying to connect windows form to oracle database on a remote server through VS 2005 and get the following error:Unable to connect: ORA-12154: TNS
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I have a problem with my webserver connecting to SQL server.I have setup the connectionString and everything is okay. Except that I kep on getting the following error message:
Logon failed.Details: 01000:[Microsoft][ODBC SQL Server Driver][DBNETLIB]ConnectionRead (recv()).Query Engine Error: '08S01:[Microsoft][ODBC SQL Server Driver][DBNETLIB]General network error. Check your network documentation.'Logon failed.Error in File C:WINDOWSTEMPCouncilDistrict {4F892A8B-2AC6-4302-8A58-1466157C3ED7}.rpt:Unable to connect: incorrect log on parameters.
How to connect mysql to visual basic 2008?
View 2 RepliesMy remote MYSQL allows remote connections so I should be able to connect to it via a VB code.
View 12 RepliesI want connect to MySQL without any AdoDB and those things.I want make program where must to be logged in before it opens.
View 6 RepliesI have a database in MySQL server called MD
Server: Local host
User: root
Pass: wccmd12
port 3306
How do I connect to this database in vb.net?
I want to connect to an MySQL database on the website, I want to write and retrieve information from that database into a table on my program.
Can anybody link me to a tutorial on how to do this? Or give me some insight, I'm relatively new to Visual Basic (7 months) and I'm not exactly sure on how to do this.
from vb.net code i try to remotely connect to mysql server :
Dim conn As New MySqlConnection
Dim comand As New MySqlCommand
Dim myconnstring As String = "server=192.168.1.100" _
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I get Timeout I/O operation. With mysql front i can connect without problem.I closed windows firewall.
I've installed MySQL .NET connector but it's not shown in data source options to connect in Visual Studio Express Edition.
View 2 RepliesSo, what I'm trying to do is to connect to a remote database using the MySQL connector. Dim c As New MySqlConnection c.ConnectionString = "Server=" & URL & ";Database=" & "" & ";Uid=root" & ";password =" & "" c.Open()I know the connection string is correct. I can access the phpMyAdmin through a web-browser just fine. For some reason however trying to open the connection throws an exception 'Unable to connect to any of the specified MySQL hosts'. I tried disabling the VS debugging process, as I thought maybe it's blocking my MySQL access for some reason, but no.
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I have a .dll file ( MySql.Data.dll ) that I'd like to be able to open, view and possibly edit the database but I can't find any examples or documentation on doing so.
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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
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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
I added a new database using SQL Server Management studio express 2008. I can connect to that database using Web Developer and Visual Studio just fine. But when I try to connect from VB Express 2008 I get an error message "file in use by another program". VB only prompts me for the name of the database, but Web Developer and Visual Studio prompts me for both server instance and database name. I'm sure this is just something simple I'm missing.
View 2 RepliesI 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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We 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).
I need to display on my datagridview the data from MYSQL db, but I'm having a problem on a field which is in DATE format in mysql
cmd.CommandText = "SELECT * FROM tbl_user_log"
cmd.Connection = sqlcon
dr = cmd.ExecuteReader
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Im building an app to manage PSP contents, and it should connect to my MySQL server on my domain to refresh game info and ratings and so on, but I cant make it connect with MySQL Connector 6.1.
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I can have mysql database. but i have not mysql. how to connect this database vb.net 2005. but i have mysql-connector-net . I want to mysql-connector-net use to connect this database. database path(C:Documents and SettingsAdminMy DocumentsVB.NETStock delnaSTC.sql)
View 3 Replies