- #Vb net 2010 database connection how to#
- #Vb net 2010 database connection install#
- #Vb net 2010 database connection full#
- #Vb net 2010 database connection code#
Again it should be public so that it can be called from any other class in your project. You don’t have freedom to change the name of the subroutine, it should always be ‘new’ since it signifies that it’s a constructor. Then sets an initial query to the database to select all the records from table1.
And sets the connection that will be used by the command. It instantiates the connection by opening it. When I say other class, I’m referring to the other windows form that you have in your project. It should always be public so that the other class can access it. If you need calculations use the proper data type like int or float or double. Always remember that it should be a public string. This one is just the declaration of the string that you’ll be using to represent the data which you want to enter or retrieve from the database. Used for executing sql queries in your application: Dim cmd As New OdbcCommand This is the declaration of command string. Of course, the DSN equivalent here is ‘yoh’ and it may vary depending on what you have declared in control panel. This is the one who is responsible for connecting to the ms access database through odbc. This is the declaration of our connection string. Its generated when you create a new class in visual studio:
#Vb net 2010 database connection code#
This is the declaration of the class, its automatically generated code so you don’t have to type it. So that you’ll understand what every line of code does.
#Vb net 2010 database connection full#
Here’s the full code, in the parent class where you will be inheriting: Imports ĭim con As New OdbcConnection("DSN=yoh ")Ĭmd.CommandText = "INSERT INTO table1(Neyms) VALUES('" + neym + "')" I named mine ‘yoh’ from the shaman king character ‘yoh asakura’. I used odbc to connect so the name space will be: Imports Īnd for the connection string parameters, you can use the dsn name that you supplied earlier.Īs a shortcut, you can always use the DSN or the data source name as a parameter for the connection string. The code is almost always the same, the only thing that is changing is the:
#Vb net 2010 database connection how to#
If you don’t know how to add a class, just search for it on google.Īs I’m always saying, if you connect to different database using vb.net. And to make the application more object-oriented.
This is to separate the application logic from the interface partially. Where we will inherit the methods needed for manipulating the database. If everything is clear on that, go to your vb.net application. Remember: close the ms access windows before trying to click ‘ok’ because you will get an invalid directory error if you don’t. accdb, for those that are created using ms access 2007 or 2010.Īfter you’ve gotten a similar window to that of my screenshot. mdb for database created using ms access 2003. Just try to find where you have save your database. Just go to the ‘database portion’ then click on ‘select’. You then would want to select the database that you created a while ago. Select, ‘MS Access database, from the list of database that is already listed. You can also use this method if you want to connect to mysql database. It’s the built in function in windows operating system that allows you to open database connection for almost any database that you know. Select ‘administrative tools’ then click on ‘data sources’. If you don’t want an auto number(usually this is the primary key). Input the necessary fields that you would want. What you’ll want to do here is to create a new database and add a table on it.Īfter creating your new database, just head to ‘table 1’ right click it then select ‘design view’. You will see something like this when you open up ms access 2010: If you don’t already have an ms access database created, then create one.
#Vb net 2010 database connection install#
Lets get started, first thing that you need to do is to download and install the requirements below.