Deleted row information cannot be accessed through the row. Including with Lambda functions.

Error message
Deleted row information cannot be accessed through the row.
This may occur when using Lambda functions and in other scenarios as well.

Problem
Dim dtTotal = dsBusiness1.InvoiceDetail.Where(Function(r1) r1.InvoiceNo = cInvoice.InvoiceNo AndAlso r1.RowState <> DataRowState.Deleted)

Solution 1
Dim dtTotal = dsBusiness1.InvoiceDetail.Where(Function(r1) r1.RowState <> DataRowState.Deleted AndAlso r1.InvoiceNo = cInvoice.InvoiceNo)

Solution 2
Use AcceptChanges on datatable to force deletions to clear

Try

Me.MyBindingSource.RemoveCurrent()
Me.MyBindingSource.EndEdit()
Me.ds1.MyTable.AcceptChanges()

Catch ex As Exception
MessageBox.Show(ex.Message)
End Try