Target Highest Primary Key When Adding New Row to DataGridView

Question

So I have a DataGridView filled with data with the Primary Key being ex."Order Number". Whenever a new row is added to the DGV, I have this line of code added to target the new row.

dgv.Rows(dgv.Rows.Count - 1).Selected = True

This works great and all, but whenever a user is sorted on a column header, this will go to the last row like it is supposed to do, but that's not where the new row is.

So is it possible for me to do this, but to target the highest primary key number? Since the newest row being added will contain the highest primary key number at the time of creation.

Thank you.

UPDATE: I have found a way to get the highest value of such primary key by using:

Dim MaxID = dgv.Rows.Cast(Of DataGridViewRow)().Max(Function(r) Convert.ToInt32(r.Cells("Order Number").Value))

But whenever I use:

dgv.Rows(MaxID).Selected = True

I get an error saying the value is outside the bounds of the array. I tried MaxID - 1 as well.

Answer 1

One way to get there:

    Dim qry = (From r As DataGridViewRow In Me.dgv1.Rows
               Order By r.Cells("Order Number").Value Descending
               Select r.Index)
    If qry.Any Then
        Dim idx As Integer = qry.First
        Me.dgv1.Rows(idx).Selected = True
    End If

Or you can directly select the row

    Dim targetRow = Me.dgv1.Rows.Cast(Of DataGridViewRow)().
        OrderByDescending(Function(r) r.Cells("Order Number").Value).FirstOrDefault
    If targetRow IsNot Nothing Then targetRow.Selected = True

Answer 2

The way that I had to resort to doing is by resetting the sort from the DataSet that was filling the DataGridView, and then select the row and currentcell.

    DataSet.Tables("TableName").DefaultView.Sort = ""
    dgv.Rows(dgv.Rows.Count - 1).Selected = True
    dgv.CurrentCell = dgv.Rows(dgv.Rows.Count - 1).Cells(dgv.FirstDisplayedCell.ColumnIndex)

Definitely not the best fix, because I am resetting the sort before focusing on a row, but it will hold the users over for the time being.