Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim sql = "select ID, numbertest from table2 where numbertest like '" & TextBox1.Text & "'"
adt = New OleDbDataAdapter(sql, dbconn)
datatable = New DataTable
adt.Fill(datatable)
DataGridView1.DataSource = datatable
End Sub