here is the coding for creating a table with book name, author name, isbn , tile etc,........

in the below coding i need the insert , retrieve, and update coding as vb.net coding

DataGridView1.ColumnCount = 4
        DataGridView1.ColumnHeadersVisible = True
        Dim colhdrstyle As New DataGridViewCellStyle
        DataGridView1.ColumnHeadersDefaultCellStyle = colhdrstyle
 
        DataGridView1.Columns(0).Name = "bookname"
        DataGridView1.Columns(1).Name = "isbn num"
        DataGridView1.Columns(2).Name = "title"
        DataGridView1.Columns(3).Name = "author"