private static void CanExecuteRemove(object target, CanExecuteRoutedEventArgs e)
{
bool result = false;
CslaDataProviderCommandManager ctl = target as CslaDataProviderCommandManager;
if (ctl != null && ctl.Provider != null)
{
if (ctl.Provider.Data != null)
{
Csla.Core.BusinessBase bb = e.Parameter as Csla.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 && !Csla.Rules.BusinessRules.HasPermission(ApplicationContextManager.GetApplicationContext(), Rules.AuthorizationActions.EditObject, ctl.Provider.Data))
{
result = false;
}
}
}
}
e.CanExecute = result;
}
private static void CanExecuteNew(object target, CanExecuteRoutedEventArgs e)
{
bool result = false;
CslaDataProviderCommandManager ctl = target as CslaDataProviderCommandManager;
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 && !Csla.Rules.BusinessRules.HasPermission(ApplicationContextManager.GetApplicationContext(), Rules.AuthorizationActions.EditObject, ctl.Provider.Data))
{
result = false;
}
}
}
}
e.CanExecute = result;
}
/// <summary>
/// Refreshes the control's property
/// values to reflect the values of
/// the underlying business object.
/// </summary>
public void Refresh()
{
// per-type rules
if (DataObject != null)
{
var sourceType = DataObject.GetType();
var newValue = Csla.Rules.BusinessRules.HasPermission(ApplicationContextManager.GetApplicationContext(), Rules.AuthorizationActions.CreateObject, DataObject);
if (CanCreateObject != newValue)
{
CanCreateObject = newValue;
}
newValue = Csla.Rules.BusinessRules.HasPermission(ApplicationContextManager.GetApplicationContext(), Rules.AuthorizationActions.GetObject, DataObject);
if (CanGetObject != newValue)
{
CanGetObject = newValue;
}
newValue = Csla.Rules.BusinessRules.HasPermission(ApplicationContextManager.GetApplicationContext(), Rules.AuthorizationActions.EditObject, DataObject);
if (CanEditObject != newValue)
{
CanEditObject = newValue;
}
newValue = Csla.Rules.BusinessRules.HasPermission(ApplicationContextManager.GetApplicationContext(), Rules.AuthorizationActions.DeleteObject, DataObject);
if (CanDeleteObject != newValue)
{
CanDeleteObject = newValue;
}
}
else
{
CanCreateObject = false;
CanGetObject = false;
CanEditObject = false;
CanDeleteObject = false;
}
IEditableBusinessObject source = DataObject as IEditableBusinessObject;
if (source != null)
{
if (IsDeleted != source.IsDeleted)
{
IsDeleted = source.IsDeleted;
}
if (IsDirty != source.IsDirty)
{
IsDirty = source.IsDirty;
}
if (IsNew != source.IsNew)
{
IsNew = source.IsNew;
}
if (IsSavable != source.IsSavable)
{
IsSavable = source.IsSavable;
}
if (IsValid != source.IsValid)
{
IsValid = source.IsValid;
}
}
else
{
IEditableCollection sourceList = DataObject as IEditableCollection;
if (sourceList != null)
{
if (IsDirty != sourceList.IsDirty)
{
IsDirty = sourceList.IsDirty;
}
if (IsValid != sourceList.IsValid)
{
IsValid = sourceList.IsValid;
}
if (IsSavable != sourceList.IsSavable)
{
IsSavable = sourceList.IsSavable;
}
IsDeleted = false;
IsNew = false;
}
}
}
