How to update a Text cell using a ComboBox cell VB.NET DatagridView

问题

I am using Friend WithEvents PersonName As DataGridViewComboBoxColumn as a column in DataGridView and PersonName DataSoucre is bounded to a database. I would like for when the ComboBox Selection is changed it uses that value to query my database Business Object to find the right value then I want to set the value from the query to the column to the right of the one with the ComboBox which is named Colum3.

But am not use how to access each individual event handler for the ComboBox cell, I tried dgvTable.CellBeginEdit but it triggers too early.

Private Sub dgvTable_CellBeginEdit(sender As Object, e As DataGridViewCellCancelEventArgs) Handles dgvTable.CellBeginEdit
    If e.RowIndex <> -1 And e.ColumnIndex <> -1 Then
        dgvTable.Rows(e.RowIndex).Cells("Colum3").Value = dgvTable.Rows(e.RowIndex).Cells(e.ColumnIndex).Value & "Somevalue from my databse"
    End If
End Sub

来源：https://stackoverflow.com/questions/64931697/how-to-update-a-text-cell-using-a-combobox-cell-vb-net-datagridview