Updating access database with
Nothing much to see here other than how to create the class and use a connection string to tell the connection where to find the database.
Since we now have a database connection made, we have a few choices on how to query and load our data. Some have their advantages and disadvantages, so be sure to research which one might fit your needs the most.
The second method I will show you is again using a dataset but this time we will loop through it to load the listbox.
This method is good for times where you want to modify each value before adding it to the listbox.
All we need is to tell it which driver to use and where to find the database file. Then we give it the connection string and open the connection…
Think of this method like using a hose to fill up a bucket.
The Data Adapter will use our connection (a well???
) and pump info into our Data Set which will be our bucket.
NET has to dedicate less resources to managing the internal record pointer and can speed up access.
This means it is great for any situation where you simply want to loop through the values quickly and easily without needing to go back. Of course this is also the disadvantage, we can’t simply go to the previous record if we wanted to.
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Like if we wanted to make sure that each name is properly capitalized we could do that before adding it to the list Box1. The last method here for selecting data is using a command object and fetching what is called a “Reader”.