List view Wpf in C#

<ListView.View><GridView><GridViewColumn Header="Emri" DisplayMemberBinding="{Binding Path=Emri}" Width="200" /><GridViewColumn Header="Sasia"  DisplayMemberBinding="{Binding Path=Sasia}" Width="100" /><GridViewColumn Header="Çmimi per njesi" DisplayMemberBinding="{Binding Path=CmimiPerNjesi}" Width="100"/><GridViewColumn Header="Totali pa TVSH" DisplayMemberBinding="{Binding Path=TotaliPaTVSH}" Width="150"/><GridViewColumn Header="Vlera e TVSH" DisplayMemberBinding="{Binding Path=VleraTVSH}" Width="100"/><GridViewColumn Header="Totali me TVSH" DisplayMemberBinding="{Binding Path=TotaliMeTVSH}" Width="150"/></GridView></ListView.View>

I have make listview in wpf project but I need to change data in item but I cant how can I change data in items Listview my list view is read only

thnx