private static ConfigurationElement CreateCopyOfCollectionElement(IMergeableConfigurationElementCollection mergeableSource, ConfigurationElement sourceElement)
{
ConfigurationElement targetElement;
Type sourceType = sourceElement.GetType();
if (sourceElement is ICloneableConfigurationElement)
{
return(((ICloneableConfigurationElement)sourceElement).CreateFullClone());
}
if (TypeDescriptor.GetAttributes(sourceElement).OfType <CloneableConfigurationElementTypeAttribute>().Any())
{
CloneableConfigurationElementTypeAttribute cloneableConfigurationElementTypeAttribute = TypeDescriptor.GetAttributes(sourceElement).OfType <CloneableConfigurationElementTypeAttribute>().First();
ICloneableConfigurationElement cloneable = (ICloneableConfigurationElement)Activator.CreateInstance(cloneableConfigurationElementTypeAttribute.CloneableConfigurationElementType, sourceElement);
return(cloneable.CreateFullClone());
}
targetElement = mergeableSource.CreateNewElement(sourceType);
return(targetElement);
}
/// <summary>
/// Adds a new item of type <paramref name="elementType"/> to the collection.
/// </summary>
/// <param name="elementType">The <see cref="Type"/> of element to add. It should be of, or derive from, the type indicated in <see cref="CollectionElementType"/>.</param>
/// <returns>An <see cref="ElementViewModel"/> for the added type.</returns>
public virtual ElementViewModel AddNewCollectionElement(Type elementType)
{
EnsureHasChildElements();
var element = mergeableConfigurationCollection.CreateNewElement(elementType);
var childElementModel = ContainingSection.CreateCollectionElement(this, element);
if (childElementModel.NameProperty != null)
{
childElementModel.NameProperty.Value = CalculateNameFromType(elementType);
}
// add the new element to the configuration.
mergeableConfigurationCollection.ResetCollection(
thisElementCollection.OfType <ConfigurationElement>()
.Concat(new[] { element })
.ToArray());
foreach (var property in childElementModel.Properties)
{
DesigntimeDefaultAttribute defaultDesigntimeValue = property.Attributes.OfType <DesigntimeDefaultAttribute>().FirstOrDefault();
if (defaultDesigntimeValue != null)
{
property.Value = property.ConvertFromBindableValueInvariant(defaultDesigntimeValue.BindableDefaultValue);
}
}
childElementModel.Initialize(new InitializeContext());
InitializeElementProperties(childElementModel);
// add the new element to the view model.
AddChildToView(childElementModel);
Validate();
return(childElementModel);
}
private static ConfigurationElement CreateCopyOfCollectionElement(IMergeableConfigurationElementCollection mergeableSource, ConfigurationElement sourceElement)
{
ConfigurationElement targetElement;
Type sourceType = sourceElement.GetType();
if (sourceElement is ICloneableConfigurationElement)
{
return ((ICloneableConfigurationElement)sourceElement).CreateFullClone();
}
if (TypeDescriptor.GetAttributes(sourceElement).OfType<CloneableConfigurationElementTypeAttribute>().Any())
{
CloneableConfigurationElementTypeAttribute cloneableConfigurationElementTypeAttribute = TypeDescriptor.GetAttributes(sourceElement).OfType<CloneableConfigurationElementTypeAttribute>().First();
ICloneableConfigurationElement cloneable = (ICloneableConfigurationElement)Activator.CreateInstance(cloneableConfigurationElementTypeAttribute.CloneableConfigurationElementType, sourceElement);
return cloneable.CreateFullClone();
}
targetElement = mergeableSource.CreateNewElement(sourceType);
return targetElement;
}