I 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)".
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"
[Code]...
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 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'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 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.
I 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 have a project in Visual Studio 2008 and there is a working data connection to a MySQL database. In other words, I can query the db directly from Visual Studio and it will display the results.
I've tried a couple of approaches that I found online for writing a connection string and accessing the db, but no luck yet.
All I'm trying to do is code a button to query the db and then reset the text property of a label/textbox to display the results based upon another label/textbox value.
The pseudo-code I am imagining is something like this:
Private Sub query_submit_button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles query_submit_button.Click
result_textbox.Text = SELECT field FROM table WHERE otherfield = key_textbox.Text
End Sub
I didn't see any related questions posted on SO - forgive me if I missed one that already exists and this is a dupe.
What is the correct way to accomplish this?
EDIT
Using MySQL 5.1
I 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've followed a guide as to how I connect a form to mysql as per:
Private Sub Form1_Load(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles MyBase.Load
TestConnection()
End Sub
Public Sub TestConnection()
[Code] .....
And when I launch the form I get the error "unable to connect to the specified hosts".
how to create login system using VB.NET .. (usernames and passwords are stored in mysql database)
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View 15 RepliesHow to Connect an MySQL to VB8 Form to access File from database I used several codes but connection is not establishing have to connect VB form button by click it connect to database in C# code so Help me to connect for database in C# source code
View 1 RepliesI have login system and also I know how to get 1 exact row from mysql but how can I create a table which will be filled with values from mysql table?
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My database name is "plant3", i have a table named "itemlist" which has a field named "itemname", "task", and "status". I want to show the itemname on combobox and when user choice an itemname the program will show all task and status for that item.
View 2 RepliesI m creating a Log In form at VB.NET and i have some problems The connection between the application and the web server opens fine and i can login if i use the MD5 encrypted text of the database.
View 15 RepliesFollowing conflicts that im facing;
1-database Connection issue : I have made successful connection with ACCESS database from win form (vb.net) but the Connection string's location
Is locally accesse only b/c database is placed in my Drive C:databasedatab.mdb , but i need the location which can be universally accessed like in websites image location like that imgsrc=/images/1.jpg , for this issue i have used dim cn as oledbconnection = ("provider=*****,datasource=|datadirectory|/datab.mdb")
But this connection is not working , i know there is just issue in connection string may im missing any syntax.
2-Login Form : i need easy coding for login form which confirms from access database table "USER" , the username,password field, if both are matched it proceed to the main form where menus and blah blah
Login form and link to the MySQL database..Im a new software programmer
View 1 RepliesNeed to create a form and connect the form the database on the click of a button. I have created the forms and data tables (Attached).Also want to know how can i open a form on double clicking an entry in the list box.
View 4 RepliesI am trying to pass some information from a VB form to my MySQL database. i have named all the textbox's the same as the field in the database and checked all my database fields and textbox names which are all correct. When i try to enter information into a form I sometimes get an error at the .executeNonQuery section of the code.
To test, I outputted the SQLStatement string to a textbox ( which pulled through all the fields from the textboxes correctly) then manually inputted the completed SQL query into the database and it worked. But when I try to do this in one go it seems to fail if there is too much text ( if i enter 'a' into each field it works). Are they limits to the size of the SQL query that can be passed from VB?? all the MySql database fields are set to text with no size limits.
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So I am able to create a mysql connection. I have been watching tutorials and they tell me to go Project -> Add Reference and click on MySQL.data
However this does not show up anywhere. ( I have installed the Driver though :S)
While connecting database (sql server 2000) to a vb.net form I encountered the problem. After adding the server the table was supposed to be drag to the form but there is a problem in drag and the things are not coming out as they should.
View 1 Replieshow can i get data from mysql table and show it in listbox in visual basic 2008
mysql table
id
filename varchar 255
filetime timestamp
and it is windows application
I have a piece of code connecting to my database retrieving data. I was just testing the form on another computer and everytime it loads this specific form it closes the form.You can see the lines I had to comment out in order for the form to NOT close on load. Is there something possibly that needs to be installed on this other computer? running XP pro 32 bit.
Dim conn As OleDbConnection
Dim comm As OleDbCommand
Dim dr As OleDbDataReader
Dim connectionString As String
[code]....