/// <summary>
/// Creates an instance of the object.
/// </summary>
public YYTDataProvider()
{
_commandManager = new YYTDataProviderCommandManager(this);
_factoryParameters = new ObservableCollection <object>();
_factoryParameters.CollectionChanged +=
new System.Collections.Specialized.NotifyCollectionChangedEventHandler(_factoryParameters_CollectionChanged);
}
private static void CanExecuteUndo(object target, CanExecuteRoutedEventArgs e)
{
bool result = false;
YYTDataProviderCommandManager ctl = target as YYTDataProviderCommandManager;
if (ctl != null && ctl.Provider != null)
{
if (ctl.Provider.Data != null)
{
YYT.Core.IEditableBusinessObject ibiz = ctl.Provider.Data as YYT.Core.IEditableBusinessObject;
if (ibiz != null)
{
result = ibiz.IsDirty;
}
else
{
YYT.Core.IEditableCollection icol = ctl.Provider.Data as YYT.Core.IEditableCollection;
if (icol != null)
{
result = icol.IsDirty;
}
}
}
}
e.CanExecute = result;
}
private static void CanExecuteRemove(object target, CanExecuteRoutedEventArgs e)
{
bool result = false;
YYTDataProviderCommandManager ctl = target as YYTDataProviderCommandManager;
if (ctl != null && ctl.Provider != null)
{
if (ctl.Provider.Data != null)
{
YYT.Core.BusinessBase bb = e.Parameter as YYT.Core.BusinessBase;
IBindingList list;
if (bb != null)
{
list = bb.Parent as IBindingList;
}
else
{
list = ctl.Provider.Data as IBindingList;
}
if (list != null)
{
result = list.AllowRemove;
if (result && !YYT.Security.AuthorizationRules.CanEditObject(ctl.Provider.Data.GetType()))
{
result = false;
}
}
}
}
e.CanExecute = result;
}
private static void SaveCommand(object target, ExecutedRoutedEventArgs e)
{
YYTDataProviderCommandManager ctl = target as YYTDataProviderCommandManager;
if (ctl != null && ctl.Provider != null)
{
ctl.Provider.Save();
}
}
private static void RemoveCommand(object target, ExecutedRoutedEventArgs e)
{
YYTDataProviderCommandManager ctl = target as YYTDataProviderCommandManager;
if (ctl != null && ctl.Provider != null)
{
ctl.Provider.RemoveItem(e.Parameter);
}
}
private static void CanExecuteNew(object target, CanExecuteRoutedEventArgs e)
{
bool result = false;
YYTDataProviderCommandManager ctl = target as YYTDataProviderCommandManager;
if (ctl != null && ctl.Provider != null)
{
if (ctl.Provider.Data != null)
{
IBindingList list = ctl.Provider.Data as IBindingList;
if (list != null)
{
result = list.AllowNew;
if (result && !YYT.Security.AuthorizationRules.CanEditObject(ctl.Provider.Data.GetType()))
{
result = false;
}
}
}
}
e.CanExecute = result;
}
