When sorting or filtering is applied to the grid, it uses the underlying DataView of the DataSource and DataMember. To get the DataRow for a row index after the sort or filter, access the same underlying list as accessed by the grid with the following code:

To write code in Visual Basic

If Me.C1TrueDBGrid1.FocusedSplit.Rows(Me.C1TrueDBGrid1.Row).RowType = C1.Win.C1TrueDBGrid.RowTypeEnum.DataRow Then
    Dim dr As System.Data.DataRowView = CType(Me.C1TrueDBGrid1(Me.C1TrueDBGrid1.RowBookmark(Me.C1TrueDBGrid1.Row)), System.Data.DataRowView)
End If

To write code in C#

if (this.c1TrueDBGrid1.FocusedSplit.Rows[this.c1TrueDBGrid1.Row].RowType == C1.Win.C1TrueDBGrid.RowTypeEnum.DataRow)
{
    System.Data.DataRowView dr = (System.Data.DataRowView)this.c1TrueDBGrid1[this.c1TrueDBGrid1.RowBookmark(this.c1TrueDBGrid1.Row)];
}