VS 2008 Optimizing MySQL Connection Code
Aug 4, 2009
As 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]
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May 5, 2010
My system use to run on from a access database. Now I created the database on a MySQL server.I can connect to it using the connection wizzard, but I prefer using my old methods as shown below.[code]...
Does anyone know how to hardcode a connection and selection like I use to do with access, but only in MySQL?
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Sep 9, 2011
this code was not done by me originally and there are some thigns here i dont quite understand i have altered it a bit from my coworkers code to suit my data and it works. but too slow. and when i have 4000+kb excel files it might freeze altogether. ( I have checked tho that when and after this transposer runs it will still be within the excel row limit, i had done calculations before and made a macro to automatically split excel files based on number of columns and rows to make sure this is so ). This code seems to start out fast then goes slower the longer it runs. at least this is what it seems liek to me.
[Code]....
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Sep 8, 2010
I have code that increments an array of numbers. However, due to performance issues, I need to optimize it.
Here is the code:
Public Sub increment(ByRef Index() As UInt16)
Dim N As Integer = Index.Length - 1
If (Index(0) = 65535) Then
Index(0) = 0
[Code] .....
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Jan 11, 2011
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
[code].....
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Mar 9, 2010
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].....
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Jan 15, 2012
regarding vb 2008 as below 1.how to make connection between mysql and visual basic 2008. 2.how to write insert the query.
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Apr 2, 2009
connect to MySQL to create a database in visual Basic 2008
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Apr 5, 2010
I'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)
[Code]...
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,
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Jun 12, 2011
What 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
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May 1, 2009
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.
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May 15, 2012
I have been using the code below to tell if the computer has an internet connection. It works fine on my home computer but when I run it at work on our network which has internet, it fails. I can go to the sites I use below in my browser but when this is run in my app, it returns false. Any ideas why? Is there a better way i should be checking?
[Code]...
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Dec 21, 2011
I'm making a winforms app in vb.net that connects to a mysql database on my webserver to read and write data, this all works fine.But i have to allow the users ip to remote connect to the database.Is it possible to give everyone access to the database? The user account will not have all rights an the data isn't very important if it got lost.The user account and connection details are hard coded.
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Aug 23, 2011
How to connect using MySQL connection?
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Mar 23, 2012
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
[code]....
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Jul 20, 2011
I was wondering is it possible to use C#/++ and php to connect to a mysql database? I ask because seems my host doesnt have remote access setup for me to access my database.
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Jan 20, 2011
I'm being able to connect to mysql database in localhost. But not able to connect in my server?
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Apr 25, 2011
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]...
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May 14, 2011
I'm trying to insert values from my asp.net application into my MySQL database.
On the register page people can fill in Name and Pass and press submit.
Public Function InsertMember(ByVal objMember As Member) As Boolean
[Code]...
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Oct 31, 2010
I want to connect mysql database with vb.net 2003I install mysql and add referance MySql.Data. When I try to use following connection script which is very common: conn.ConnectionString = "server=localhost;user id=root;password=1234;database=test_1" am getting error 1042. server connection errorWhen I use Mysql Workbench for mysql data browsing. I can connect database with Local Socket/Pipe connection method. Standart TCP/IP method is not working, because I do not use any network just work on local machine.
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Jun 21, 2010
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)?
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Nov 19, 2011
I get this error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '*' at line 1 [Code]
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Feb 23, 2009
I am trying to get connection to MySQL DB through the MS Entity Framework and I am not able to. Yes, I can connect to the DB otherwise, using conventional MySQL Connector 5.2.2. I am using vs 2008 and the VS SP1. I have added a VB Forms Project. Now, when I try to add a New ITEM and choose ADO.NET ENTITY DATA MODEL, it asks for the Datasource. Now, here it lists only SQL Server and I do not see the MySQL option at all. I have added the Mysql.data.dll to the project as a reference. Nothing seems to get me the link to the DB via the Entity Data Model Wizard...
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Feb 1, 2012
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.
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Nov 7, 2011
In the first form I will load Tabels in the secound I want to open the DB Connection. I wrote a Class which enables me to open and close the connection
[Code]...
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Oct 27, 2009
i would like to ask where is the best place to save a mysql connection string.i want to be able to change the connection string(host,username,password) during runtime so if the server changes IP address i can change it.
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Sep 3, 2011
I want to add a new Data Source (so I can use it with Crystal Reports) but using mysql, I did this before.
In the left side under: 'Data Sources' and then choosed 'Add New DataSource'Then I choose: Database > Dataset I clicked in 'New Connection' and I changed the first box (with 'change' button (as you can see in the image attached)) to what is showed in the image (MySQL Database..)The problem is, as I type the first letter of any of the textbox's that are below (server, user, or pwd) it closes that form showing the previous form (where I clicked 'New Connection')
Have someone had this problem ?I had a connection there, but since I changed the project from 'Framwork 4 Client Profile' to 'Framework 4' (so I could have the Crystal Report Viewer) the connection has gone and don't leaves me create it again.PD: I'm using dotNetConnector (already Added as a Reference)
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Jul 6, 2010
My program needs to connect to a mysql db, but if the users has no internet or fails to connect i don't want my app to crash
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Oct 24, 2011
How can I call the connection string by name from an app.config file in my vb.net program?
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Jul 10, 2009
this is code where i want to insert ConnectionString=<%$ConnectionString =""%>[code]....
I can not connect MySql (SQL YOG) at all to this control, this is prob from .net control and not MySqlMark the thread as answered
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