I am having trouble importing mySQL to my project. When I use the syntax Imports MySql.Data.MySqlClient a warning shows up saying that "namespace or type specified in the (code) doesn' contain any public member or cannot be found"
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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 RepliesWhen the connections is successful (which it does when ran). Button 1 Writes to the text file (which it does successfully). Button 2 deletes the contents of the table and not the table itself (which it does successfully). Last, button 3 is supposed to read the text file and insert each field which is separated by a comma back into the existing table. However, at the "addComm.ExecuteNonQuery()" step I receive an error (An unhandled exception of type 'System.Data.SqlClient.SqlException' occurred in system.data.dll). I have spent many hours trying to find a solution but can't seem to get it to rewrite the text file back to the table.[code]...
View 13 RepliesI have a VB.NET Console Application that depends on a C++ project in the same solution. I'm importing the C++ dll for use in the VB project. When I compile and then run the application, I get the runtime error R6034. Anything wrong going here?
View 2 RepliesWhen I import a class to a form and use it I get this error:
An error occurred creating the form. Additional information is found in Exception.InnerException. Error: The document refers to itself of the default instance created during the formation of infinite recursion. Set a reference to the form constructor using the form attribute of Me.
The code is...
Imports TCP.SystemBuild
Public Class MainForm
Dim SystemBuild As New SystemBuild
Why do i keep getting "Keyword not valid as indentifier" error in Declare statemens even after importing system.runtime.interop?
View 4 RepliesError: MySql.Data.MySqlClient.MySqlException: #42000 You have an error in your SQL syntax
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heres the error " You have an error in your SQL syntax; check the manual that corresponds to your mysql server version for the right syntax use near "at line 1"thats the error appear when im tring to save the record.this is my code in that form.
Imports MySql.Data.MySqlClient
Public Class Form10
Private Sub Form10_FormClosed(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosedEventArgs) Handles Me.FormClosed
frUpdate = False
[code]....
I get this error, while I'm testing the code below: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 '[student](ID, LASTNAME, FIRSTNAME, SCHOOL) VALUES ('333', 'aaa', 'aaa', 'aaa')' at line 1I just recycled the code that I used in manipulating ms sql database. So the syntax must be wrong. What might be the correct syntax for adding records into mysql database?Here is my current code:
idnum = TextBox1.Text
lname = TextBox2.Text
fname = TextBox3.Text
[code].....
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]
View 14 RepliesYou have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ", 'Montes','M','Naga','09103801462','EM','HplolP')' at line 1[code]...
View 6 RepliesI work for a Non-Profit Organization... And I'm trying to make a program for all of us to use as stand alone to just check minimum things like volunteers, events, requests... etc. I have some experience with Visual Basic, but not a lot.
Imports System.Data.SqlClient
Imports MySql.Data.MySqlClient
Public Class Login
[code].....
I am building a VB.net application using VB Express 2008 which connects to a MySQL database. Right now, I am only selecting records, but will be writing code for update / insert. I have installed the MySQL Net Connector, most recent stable build. I have set a reference to it in project references. It makes a connection and reads just fine, no issues there at all.
My problem is this: When exiting the project (via calling "End") I am receiving a null Exception error. Here is the error[code]....
I'm trying to select the newest OrderID by CustomerID. But it keeps saying I have an error in my SQL syntax, even though it works in PhpMyAdmin. I'm using a MySQL db and an ODBC connector.
Public Function GetOrderIDByCustID(ByVal CustID As Integer) As Integer
myconn.Open()
Dim OrderID As Integer = 0
[Code]....
So this should supply me with the OrderID of the newest Order for that Customer.
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.
View 2 RepliesI am getting a syntax error for the code below.I am trying to create a user in the mysql database and add their information to a datagrid control all in one button click using two statements; one to create the actual user, and one to add the user and their additional information to a table on the database and then refresh the datasource which will display the new user's information in the datagrid control.
If anyone knows where i went wrong please feel free to critique my code and let me know; or simply offer more efficient alternatives to what im hoping to achieve.
For those of you that must know, i am running the latest version of MySql server, MySql Workbench, and Visual Basic 2010 Express on a windows 7 based laptop. I'm writing this program in VB.net.
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i tried to save image into my database, it saves without error but when i tried to check if it saves in mysql, the data about my picture id save, but the image i save return a value of 0.
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All i'm tring to do is connect to my MysQL database on my Local host and update a record in my "customers" Table. The Error i've been getting is under Public Sub DeactivateAccount,the MyCommand.ExecuteNonQuery() line of the code. The error is saying there is "no database selected". Below is the code i have.
Imports MySql.Data.MySqlClient
Public Class FinalFailedPinNumberAttempt
Dim connectionstring As String = "Server=localhost;user id=root;Password=;
[Code].....
I have made this code, which is to update the MySQL db, the only problem is that even though i got try on, it dosnt catch any erorrs, and the code is not working, meaning it dosn't update anything in the db.
code:
Private Sub updateSqlData()
Dim nSQL As String
[code]......
I had try several type of date format and yet, I stil can't get it right. Below are the coding which had been writen
[Code]....
I have a somewhat weird problem with a program i'am writing in VB2005. When I debug the program and start 1 backgroundworker (got 8 different backgroundworkers in the program) in VB2005 nothing goes wrong, but when i'm starting 2 or more backgroundworkers I get an NullReferenceException when trying to read from a MySQL database (withing a few minutes in debugging). This error isn't always in the same backgroundworker, but is always in the same block of code in a backgroundworker (1 of 8). I tried different approaches in getting the results I need, for example with read1.HasRows(), but this also didn't workt... the MySQL table doesn't also seem to be the problem.
Line 8 is where I get the error (read1.Read())... This is a snippet from backgroundworker1, but is also randomly happens in the other 8 backgroundworkers as well... When I'am trying to read te content of read1 is says "Nothing" when the error occures...
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It seems I've tried a million little variations of this and I keep getting the same error: "The SelectCommand property has not been initialized before calling 'Fill'
Imports System.Data
Imports MySql.Data.MySqlClient
Public Class clsDB
[code]....
I'm updating a database every few minutes in my program but I get this error
Duplicate entry '127' for key 1
Everytime the db row Id reaches 127.
I am building a program for a small office and I have a little problem with the code so I thought it's better to post a topic before continiue.. I have search into google and a lot of forums about database connectivity and my problem is simillar to other but a lot of things differs.The error that I get is on executeNoQuery() and it's called {"Connection must be valid and open."} Well a lot of things may related to about that.At least now from my re-search I covered all the filds of the problem and still not fixed. So please check my code for (Add new customer) button and let me know where I have mess up.
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I have a VB 2008 application that connects to a MySQL database via ODBC using the MySQL ODBC 5.1 Driver. Works fine on XP Pro and Vista Business (both 32 bit), but on my new Vista Business 64 Bit, I get the following error when trying to connect:
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I can test the ODBC driver from Data Sources and it works just fine. Here is my DSN:
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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 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]...
i am trying to add the the text in the textbox with a stored procedure in mysql this is the error: [Code]
View 14 RepliesI made an app that connects to a mysql database to update a table. It works fine from my test machine, but if i deploy the app to another computer I get error: Unhandled Exception: System.IO.FileNotFoundException: Could not load file or assembly 'MySql.Data, Version=6.3.6.0 I'm going through google to find a solution, but nothing has stood out yet, just wondered if anyone has encountered this before and knows of a quick fix.
View 2 Replies...until an indeterminate amount of time passes and I get "The ProviderManifestToken '5' is different from '5.1' that was encountered earlier" error. Why is it encountering a '5' to begin with when I've only specified '5.1'?!!?The only way to get the error to stop is to reupload to edmx file (which has not changed at all), overwriting the previous one. At that point the application will happily chug along serving data to users until BAM the error occurs maybe a few hours later, sometimes days later and I'll have to start chasing my tail again.I've tried changing the ProviderManifestToken="5.1" to "MySQL", "6", "5" and the same situation will occur: works for a while then the error. As a bonus I only have this ONE edmx file in the vb.net webforms application so what is it getting confused bythe first few lines of my edmx file looks like:
<edmx:Edmx Version="1.0" xmlns:edmx="http://schemas.microsoft.com/ado/2007/06/edmx">
<edmx:Runtime>
<edmx:StorageModels>
[code].....
