How do I add a row to a datatable from a datagrid without clicking somewhere
else in the grid?
I use the following code to detect if something has changed in the
datatable:

myDataTable.GetChanges(DataRowState.Modified)
myDataTable.GetChanges(DataRowState.Deleted)

If I modify a cell without tabbing to the next or clicking somwhere else
before I hit the save button the row beneath will result in 'Nothing'

myDataTable.GetChanges(DataRowState.Modified)

I solve this by using the following code:
'/////////////////////////////////////////////////////////////////
        Public Sub EndEditCurRow()
            Dim intI As Integer
            Dim drEditRow As DataRow()
            Dim CurrentRow As DataRow
            Dim dvNonVisibleMaxCount As Integer()

            'CurrentRow is set to actual edited row
            CurrentRow =
CType(grdAllColumnsCfg.BindingContext(grdAllColumnsCfg.DataSource,
grdAllColumnsCfg.DataMember).Current, DataRowView).Row

            'Loop trough all columns and end edit mode on all columns
            If grdAllColumnsCfg.TableStyles.Count > 0 Then
                For intI = 0 To CurrentRow.Table.Columns.Count - 1
'grdAllColumnsCfg.TableStyles(0).GridColumnStyles.Count - 1

grdAllColumnsCfg.EndEdit(grdAllColumnsCfg.TableStyles(0).GridColumnStyles(in
tI), grdAllColumnsCfg.CurrentRowIndex, False)
                Next
            End If

            'End Edit mode on actual row
            CurrentRow.EndEdit()

        End Sub
'/////////////////////////////////////////////////////////////////

This does not work when I want to ADD a row to the table. How can I make
this work?

I want to use myDataTable.GetChanges(DataRowState.Added) to detect if a row
has been added.

//Mats