RadGridView + CommitEdit + CancelRowEdit

[ITA]

hi,

i'm using RadgridView to display my Databaseitems from a sqlite Database. I bind the Data like that:

DataTable dt = new DataTable();
dt = ITA_CRM.Klassen.sqlite.Verbindungen_GET();
MyradGrid.ItemsSource = dt.DefaultView;

Now i want to insert Items, Delete itmes and change items. I would like to use the "telerikGrid:RadGridViewCommands.CancelRowEdit" or
telerikGrid:RadGridViewCommands.CommitEdit"

<telerik:RadButton Width="Auto" Content="save changes" Margin="0,0,5,0" Command="telerikGrid:RadGridViewCommands.CommitEdit" CommandTarget="{Binding ElementName=VerbindungenRADGRID}" Padding="5"/>

 <telerik:RadButton Width="Auto" Content="undo changes" Command="telerikGrid:RadGridViewCommands.CancelRowEdit" CommandTarget="{Binding ElementName=VerbindungenRADGRID}"  Padding="5"/>

Is it the right why? Is it better to bind the Data on an other way? how? Can't find a good example to do that.

Thanks a lot
regards
ww