public bool Remove(T item, NestedSetRemoveChildAction childAction)
{
// Does the item have child items?
int correctionRequired = -2;
if (_values[item].Left + 1 < _values[item].Right)
{
// Yes. What do we do?
if (childAction == NestedSetRemoveChildAction.ThrowException)
{
throw new NotSupportedException("Unable to remove item due to child items.");
}
if (childAction == NestedSetRemoveChildAction.ReturnFalse)
{
return(false);
}
if (childAction == NestedSetRemoveChildAction.RecursiveDelete)
{
correctionRequired = _values[item].Left - _values[item].Right - 1;
for (int i = _values[item].Left + 1; i < _values[item].Right; i++)
{
_values.Remove(_positionCache[i]);
}
}
else if (childAction == NestedSetRemoveChildAction.MoveUpGeneration)
{
for (int i = _values[item].Left + 1; i < _values[item].Right; i++)
{
NestedSetData workingData = _values[_positionCache[i]];
workingData.Left -= 1;
workingData.Right -= 1;
// Replace the value
_values.Remove(_positionCache[i]);
_values.Add(_positionCache[i], workingData);
}
}
}
for (int i = _values[item].Right + 1; i < _positionCache.Length; i++)
{
NestedSetData workingData = _values[_positionCache[i]];
workingData.Left += correctionRequired;
workingData.Right += correctionRequired;
// Replace the value
_values.Remove(_positionCache[i]);
_values.Add(_positionCache[i], workingData);
}
Rebuild();
return(true);
}
internal Navigator RemoveCategory(Category category, NavigatorTreeSearchMode treeSearchMode = NavigatorTreeSearchMode.PublicFirst, NestedSetRemoveChildAction childAction = NestedSetRemoveChildAction.MoveUpGeneration)
{
switch (treeSearchMode)
{
case NavigatorTreeSearchMode.PublicOnly:
{
if (!_publicCategories.ContainsKey(category.IdString))
throw new NavigatorException("This instance of Navigator does not contain a \"" +
category.IdString + "\" category. SearchMode: PublicOnly");
_publicCategories.Remove(category.IdString, childAction);
break;
}
case NavigatorTreeSearchMode.GuestOnly:
{
if (!_guestCategories.ContainsKey(category.IdString))
throw new NavigatorException("This instance of Navigator does not contain a \"" +
category.IdString + "\" category. SearchMode: GuestOnly");
_guestCategories.Remove(category.IdString, childAction);
break;
}
case NavigatorTreeSearchMode.PublicFirst:
{
if (!_publicCategories.ContainsKey(category.IdString))
if (!_guestCategories.ContainsKey(category.IdString))
throw new NavigatorException("This instance of Navigator does not contain a \"" +
category.IdString + "\" category. SearchMode: PublicFirst");
else
_guestCategories.Remove(category.IdString, childAction);
else
_publicCategories.Remove(category.IdString, childAction);
break;
}
case NavigatorTreeSearchMode.GuestFirst:
{
if (!_guestCategories.ContainsKey(category.IdString))
if (!_publicCategories.ContainsKey(category.IdString))
throw new NavigatorException("This instance of Navigator does not contain a \"" +
category.IdString + "\" category. SearchMode: GuestFirst");
else
_publicCategories.Remove(category.IdString, childAction);
else
_guestCategories.Remove(category.IdString, childAction);
break;
}
}
return this;
}
internal Navigator RemoveCategory(Category category, NavigatorTreeSearchMode treeSearchMode = NavigatorTreeSearchMode.PublicFirst, NestedSetRemoveChildAction childAction = NestedSetRemoveChildAction.MoveUpGeneration)
{
switch (treeSearchMode)
{
case NavigatorTreeSearchMode.PublicOnly:
{
if (!_publicCategories.ContainsKey(category.IdString))
{
throw new NavigatorException("This instance of Navigator does not contain a \"" +
category.IdString + "\" category. SearchMode: PublicOnly");
}
_publicCategories.Remove(category.IdString, childAction);
break;
}
case NavigatorTreeSearchMode.GuestOnly:
{
if (!_guestCategories.ContainsKey(category.IdString))
{
throw new NavigatorException("This instance of Navigator does not contain a \"" +
category.IdString + "\" category. SearchMode: GuestOnly");
}
_guestCategories.Remove(category.IdString, childAction);
break;
}
case NavigatorTreeSearchMode.PublicFirst:
{
if (!_publicCategories.ContainsKey(category.IdString))
{
if (!_guestCategories.ContainsKey(category.IdString))
{
throw new NavigatorException("This instance of Navigator does not contain a \"" +
category.IdString + "\" category. SearchMode: PublicFirst");
}
else
{
_guestCategories.Remove(category.IdString, childAction);
}
}
else
{
_publicCategories.Remove(category.IdString, childAction);
}
break;
}
case NavigatorTreeSearchMode.GuestFirst:
{
if (!_guestCategories.ContainsKey(category.IdString))
{
if (!_publicCategories.ContainsKey(category.IdString))
{
throw new NavigatorException("This instance of Navigator does not contain a \"" +
category.IdString + "\" category. SearchMode: GuestFirst");
}
else
{
_publicCategories.Remove(category.IdString, childAction);
}
}
else
{
_guestCategories.Remove(category.IdString, childAction);
}
break;
}
}
return(this);
}
