We will update the table records which have already saved in the database table. Open() End If 'get data into data table Dim da As New Ole Db. Here, I’m not going to change any controls in the windows form. Ole Db Data Adapter("SELECT *FROM student WHERE st_id =" & int St Id, con) Dim dt As New Data Table da. Net applications for retrieving, accessing and updating data. Net object model is nothing but the structured process flow through various components.
But to apprehend you need to come after the previous tutorial. So, we can move to the Data Grid View Update Database tutorial.
Tag = int St Id 'changing button name from add to update btn Save.
Item("country") 'hide the course id to be edited txt Id.
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Applications communicate with a database, firstly, to retrieve the data stored there and present it in a user-friendly way, and secondly, to update the database by inserting, modifying and deleting data. An application accesses data either through a dataset or a data reader.