VS 2008 : Writing Data To A MySQL Database?
Jun 15, 2009I have added a MySQL Database as a data source in VB using the MySQL .NET connector and added the dataset . How do i write to the database from there?
View 7 RepliesI have added a MySQL Database as a data source in VB using the MySQL .NET connector and added the dataset . How do i write to the database from there?
View 7 RepliesAt 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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how to add, insert, delete and search data in vb 2008 using mysql databases.
View 1 RepliesI have a data logging application that stores data in a table in a MySQL database. Data with a TimeStamp is logged into the table anytime the data from the sensor changes. This means that there maybe 2 seconds between data points or there maybe 20 seconds between points depending on how the data is changing.
When I need the data I have 2 dates and use this command to fill a table..SELECT FROM myTable WHERE timeStamp > date1 AND timeStamp < date2 This gets all the data that has a TimeStamp between the given dates, but in most case the first date in the returned table will be after date1, so I need to get the data from one row before the date returned in the table to know what the data was at date1.How can I get the data row that immediately precedes the returned data set?
give me a sample code that works when uploading data from access database into MySQL database...
View 6 RepliesI want to be able to click on the save icon and have the data on the form save to the original database. Right now I seem to have a disconnected dataset I have tried to change everything from read only to a false statement but it just will not work. It saves to the form fine just not the orignial data base.
View 3 RepliesI am trying to write data back to my database in my project, but it keeps disappering when I make any changes to code. I can build the project, add data, close the project and build it again and the data is still there. But as soon as I make any changes to anything, on the next build, all of the data is gone.
The table will not be bound to any controls in the final project, but for testing purposes I have a datagrid control that it is bound to. My code started as follows:
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How do I connect to a mysql database, and write a new column to a certain table there?
View 8 RepliesI use Visual Basic in Access, and I have no problem writing data directly to a cell in a database table. But I can not figure out how to write the code for Visual Basic 2008. For example I would
use Me![cust_Cost] = 20 to input 20 in the database table.
I have purchased two different Books on Visual Basic 2008 and not one of them show how to input data manually.
well this may be a simple question to some but for me, im not even sure where to start. I have never done a program in VB.NET yet that uses a MySQL database. So this should be a fun thing to learn. I looked at an example for access databases and it seemed pretty straight forward. But I must use MySQL as the database is on a Linux server in Ohio.
What I got so far is how to connect to the database using ADODB. Here the example I'm giving. You got 4 col's call AccountNum (primary key), Phone, Name, and Address. For each row is data of a client. What I'm trying to do: the program asks for the account number. You type in the account number of the client. It then
compares it to the rows of AccountNum col till it finds a row with it. Then it asks if you'd like to change the phone number or address.
So what I'm looking for is the, how to call rows and change data in col's.
Visual Basic 2008 I want to put data in combo box from MySQL database.
View 19 RepliesHow 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 RepliesPublic Sub loadme()
Dim cnString As String
Dim sqlQRY As String
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i cant see data inside my datagrid..what should i do?i'm using my sql as my database..
I'm looking into creating a program which will on program opening connect to a remote mysql database, download the data and store the data into a local file (keeping both in sync is the idea).
Getting a connection to the remote database is my first hurdle, and i'm not suceeding, i know i need to read through more info but if i could get this working it would help me tremendously.
I have attempted to connect using the mysql connector, using the server IP and port number ie. 199.002.999.000:3306 but it doesnt connect, it does connect locally ie. localhost but for some reason it won't connect to the remote server.
My other problem is that i cannot control the mysql server, i.e connections allowed remote etc, i think they're just enabled to accept connections from the server.
Is there a way to run a hidden browser script behind the scenes, download and run the file? I've tried looking for possible ways to acheive this, but have come up trumps so far.
i have a site that is running in php with a mysql db and i want creat a app wiht .net 2008 to return/send values to that database what is the best way to do that? i have think in this options:
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I used the following code to insert data from my VB.NET into the MySQL database.[code]..
View 2 RepliesI succeed withe the linking and display the data from MySQL DB but the problem is within the DML Commands ![code]...
View 2 RepliesI have an assignment where I have to develop a Windows application using Visual Basic .NET. From the form that I have designed, it should save all records in a table in a MySQL database. How should I do this? Here's what I've got so far:
Imports System.Data
Imports System.Data.SqlClient
Public Class AddMember
[code]....
I'm trying to test some stuff out, like adding employees and stuff like that.
Now it used to run on an Access database, but I've made the jump to MySQL.
Now to add an employee I use this code
Private Sub btnOpslaanWerknemer_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOpslaanWerknemer.Click
Try
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now I get the following error: "Error: MySQL.Data - You have an error in your SQL syntax; check manual that corresponds with your MySQL server version for the right syntax to use near '?,?,?,?)' at line 1.
I 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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I have a basic calendar schedule i want to loop through and then do some checks. My first data reader works fine. But as soon as i put in the second data reader it does not finish.Here is my code
Dim mycommand As New MySqlCommand
Dim mycommand2 As New MySqlCommand
Dim myData As New DataTable[code].....
Basically the above code looks up distinct calendar entries in the database.i then loop through the entries and put the items in a list view.The code above will list about 1600 rows.in the above code if i uncomment the 2 lines the system will break It will on display one line of code. What im trying to do in the second query is to see if there are double bookings in the database.
I have a program I built to pull my weather station data from a mysql database. I can get ALL the records to load, but when I try to query a date from the RecDate row, nothing.
Imports MySql.Data.MySqlClient
Imports MySql.Data.MySqlClient.MySqlCommand
Public Class search
Private connsearch As String = "Server=" & My.Settings.Data_Source & ";" _
& "Database=" & My.Settings.database & ";" _
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Dim lvitem As Object
Dim iCount As Integer
Dim iLoop As Integer
[code]....
That is my code. message box show up but the record is not saved in my database?
I'm currently doing a project, I have 5 text boxes, and the information I put inside them get's added to a record in my database..In this record, an auto-number is allocated, and I need to display what the auto-number allocated is..
View 7 Repliesim having an issue writing to an access database via vb.net 2008 i can read form it but not write?
View 4 RepliesI have searched all over the forums and not found an answer to my question. My question is how do i write to an access database at runtime. The database is also created at runtime. I have a dataset loaded with a table that i needs to be written to the database. how would i write each row of my dataset to my database? Sorry if this sounds a little jumbled together it is late and i am tired. If it is unclear you can ask me and i will answer any questions you have about my question.
View 14 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,
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)
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