MySQL Database Connection Using VB 2008?
Apr 2, 2009connect to MySQL to create a database in visual Basic 2008
View 11 Repliesconnect to MySQL to create a database in visual Basic 2008
View 11 RepliesI'm trying to connect to my MySQL database I have online at (mywebsite.com), however it just hangs for about 30 seconds and says and does nothing.
Dim sConnection As String = "Server=mywebsite.com;Database=mydatabase;Uid=myusername;Pwd=mypassword;"
Dim scConnection As New SqlConnection(sConnection)
Dim scCommand As New SqlCommand("SELECT * FROM mytable WHERE user = @user AND password = @pass", scConnection)
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I'm guessing the connection string is wrong, I'm going to try the server as localhost, but in the mean time hopefully someone might see what I might be doing wrong.I'd also like to look into doing it asynchronously, so the UI doesn't freeze,
I have some software that grabs information from a mysql server. However, users minimize it to the system tray, and leave it idle for hours until using it again.If a user leaves the program idling for about 15 minutes, then goes into the program again to perform a query, it throws a Fatal Error in the mysql, and says 'connection must be valid and open'
The reason is simply because the mysql connection has timed out..I was wondering what the code would be to re-connect to the server IF it has timed out.
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim MyConnection As New OdbcConnection("Driver={MySQL ODBC 5.1
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I'm trying to connect to a database but it doesn't work...
Code:
Dim conn As MysqlConnection
conn = New Mysqlconnection()
conn.ConnectionString = "server=http://www.*****.net/phpMyAdmin; user id=*****; password=****; database=login"
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I'm trying to make a rather simple Visual Basic app with which I can update some tables within my MySQL databases.I've been following this tutorial from page 3 on, as the first 2 pages where on how to initialize a local MySQL database.My MySQL database is on my website, so I thought I had to use the website's name instead of "localhost". Anyways, I now use this code:
Dim connection As MySqlConnection
connection = New MySqlConnection()
connection.ConnectionString = "Server=resload.com; Uid=***; Pwd=***; Database=***;"
[code]....
But it popups (don't now whether that's a real word :p) with the message:Error Connecting to Database: Access denied for user '***'@'my ipaddress' (using password: YES)?
how to create modules and consequently how to use them.I need to do a database in mySql from vb.net. I have tried the usual way, that is my connecting to the database at the beginning of each of my class. I want to know if that can be done through modules, as far as i have read about that or some other way like procedures and functions. In that way, it could ease my coding in not having to write the db connection each time.
View 4 RepliesI am having and issue with showing my database in another form. It works fine if I have it display in the current form but this is not what I want. I want to connect to the database and then have it show my query in a second form. If you don't get me here's my code.
CODE:
And then the code in form 2 is
CODE:
It comes to the error when it gets to "ContactsAdapter.Fill(ContactsData)".
I'm wondering if I create a program that connects to a mysql database, will they be able to decompile it and do anything with the mysql connection information?
View 18 RepliesWe have a VB6 program that uses an ADODB.Connection to establish a database connection and use its execute function to run SQL statements. The connection we have established is to a SQL Server. It has been working fine. Currently, I am trying to change the connection to a MySQL database. I changed the connection string and the connection is ok.
However, when it comes to running the execute function, it returns a runtime error 3246 - connection object cannot be explicitly closed while in a transaction.
I checked the connection.status before calling execute and found that it is open. When I use MySQL's server connections to check the status, I found that there was a connection before and after execute was called.
I encountered this same error whether I used MySQL ODBC 5.1 Driver or MySQL ODBC 3.51 Driver.
I am building a database application using MYSQL as the backend. The MYSQL instance will be installed remotely on a share host. I have access to SSL certificates. I'm obviously not looking for any code but, conceptually, how do I go about securing the connection using SSL between my application and the remote MYSQL database?
View 2 RepliesI am developing a chat application using online connection to a mysql databbase. But i am facing a problem. After 10 minutes, MySQL closes all the chat connections because of the 600 seconds timeout (has been set by the host service i am using). I don't understand why is that happening cause every piece of my code which needs data from the database opens and closes the connection (i mean that it dosn't maintain the connection after the query's execution). If i .close() and .dispose() the connection, it still appears in mysql at sleep mode (it terminates only if i exit the program).
Dim MySQLCon as New MySQLConnection
Dim MySQLCom as New MySQLCom
Dim counter as Short
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I created a mysql database and I want to connect to it through VB.Net 2008 using MySQL Connector Net. For this I made 3 forms, 1 form - login form, 2 - as ADMIN, 3 - from USER, the database each user has a role defined by regimes (admin / user). The problem is the following - after entering the username and password will not open one of the forms 2 or 3 but the application closes without any error.The code is:
vb.net
Imports MySql.Data.MySqlClient Public Class Form1 Const AppName = "MySql" Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
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so ive drank goats blood, sacrificed a virgin to the gods and more and im still not any closer to connection to a DB in vb.net (something that takes about 2-3 lines on code in a sensible language)....
Imports System
Imports System.Data
Imports MySql.Data.MySqlClient
[code].....
regarding vb 2008 as below 1.how to make connection between mysql and visual basic 2008. 2.how to write insert the query.
View 2 RepliesAs I was starting on my lil project i realized that I would have a tonne of repetitive code. But wasn't sure how best to go around to just only have it in there once and just call on it. Not entirely sure how to do this as I havnt done it before, I was trying to mess around with it in a Function type thing but I had declaration issues which put me off course. Basically they'll be a few labels lbl8Beats(on click it loads the table in the datagrid (dgvCompositions)) is the first, and all the code from Dim conn As MySqlConnection to data = New DataTable, will be repeated.When i was messing around and thought I'd open the connection on form load, and I just had a bunch of declaration issues, and was unsure how best to go about this. Also since the Adapter = "would be changing on each label it just made me more confused.[code]
View 1 RepliesWhat driver do you need to connect vb.net to MySQL?How do I create a Data source to MySQL? am only getting the options for SQL and MS-database! am designing a reg system for a college
View 9 RepliesI use visual basic 8.0 en MySQL.I have a connection witho my MySQL database "test" with Myconn.I have two table's :
Rental
Articlenr Articledis Articlerent
100 beerclass 15
200 wineclass 10
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How connect Vb.Net to MYSQL..? How to add info to database user informations using mysql database. How to call login infos using mysql.
View 8 RepliesI'm using a OleDB connection to a access database. I'm entering a row into the database to set some user preferences. What i need to get is get back the row ID of the row I just entered. I'm more familiar with PHP and with PHP I use use this entry
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At moment iam trying to fetch some data out of a mysql database.hope i can explain well what i try to do.Okay i made a form with some text field and a combobox.What i want is at start when the form loads that all the last name will get catcht out of the mysql database. all those last names should go in the combobox.now i have a few textboxes like adress phone number living place go onWhat i try to do now is when all those lastnames are in the combo box when i select a nameand press the button to update that it will catch the info from that user out of the mysql database and puts the info in the right textfields.What i got so far is a succesfull connection to the mysql database.
How do i know that my login to the application is also connected to the database and that one works fine ;)the only thing i cant manage is to take the data out of mysql and put it in the textfields.i made a form called test to testthis out so far this is what i have on code
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Is is possible to connect to a database that it not on the internet via a Visual Basic form?
View 11 RepliesWhat i need it to display all records in that database into a richtextbox or something.This is because i need to regarly check the database records and it would save a lot of time rather than manually logining into the cpanel and checking.I was looking at datagrid but that only does:Microsoft Access Database File (OLE DB)Microsoft SQL Server Compact 3.5 (.NET Framework Data Provider for Microsoft SQL Server Compact 3.5)
View 2 RepliesI 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]......
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]....
I developed a project in VB.NET..In this project I want to use data from MySQL that is resides in my WEB Server.I can communicate with the MySQL server of my localhost but can not communicate with the WEB Server.In my CPanel I added Host from the Remote Database Access..But I can't communicate with WEB MySQL Server.
View 2 RepliesHow to make module to vb.net 2008 and using mysql database
View 1 RepliesI am using the following codes to Save records to MySQL database from VS2008.
Dim cmd As New MySqlCommand
If cmdSave.Text = "&Save" Then
'save computer main
ConnectComputerDB()
cmd.Connection = CompDBCon
cmd.CommandText = "INSERT INTO tbl_items " _
[Code] .....
Is it the right way and proper method to save records to MySQL database...?
I 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?
insert a datatable into a mysql database? The way I'm doing it now is that I'm doing a for each-loop and inserting one and one row. Is there a better way to do this? I have like 500+ rows, so it takes a while to execute the loop.
View 4 Replies