/// <summary>
/// Method to assign the value of one type to another
/// </summary>
/// <param name="from">Other object</param>
public void Assign(ModelObject from)
{
// Assigning null values is not supported
if (from == null)
{
throw new ArgumentNullException(nameof(from));
}
// Validate the types
Type myType = GetType();
if (from.GetType() != myType)
{
throw new ArgumentException("Types do not match", nameof(from));
}
// Assign property values
foreach (PropertyInfo property in GetType().GetProperties())
{
if (property.PropertyType.IsSubclassOf(typeof(ModelObject)))
{
ModelObject oldValue = (ModelObject)property.GetValue(this);
ModelObject newValue = (ModelObject)property.GetValue(from);
if (oldValue == null || newValue == null)
{
property.SetValue(this, newValue);
}
else if (oldValue.GetType() != newValue.GetType())
{
property.SetValue(this, newValue.Clone());
}
else
{
oldValue.Assign(newValue);
}
}
else if (ModelCollection.GetItemType(property.PropertyType, out Type itemType))
{
IList oldModelCollection = (IList)property.GetValue(this);
IList newModelCollection = (IList)property.GetValue(from);
if (ModelGrowingCollection.TypeMatches(property.PropertyType))
{
ModelGrowingCollectionHelper.Assign(oldModelCollection, newModelCollection);
}
else
{
ModelCollectionHelper.Assign(oldModelCollection, itemType, newModelCollection);
}
}
else
{
object newValue = property.GetValue(from);
property.SetValue(this, newValue);
}
}
}
/// <summary>
/// Create a clone of this instance
/// </summary>
/// <returns>Cloned object</returns>
public object Clone()
{
// Make a new clone
Type myType = GetType();
ModelObject clone = (ModelObject)Activator.CreateInstance(myType);
// Assign cloned property values
foreach (PropertyInfo property in GetType().GetProperties())
{
if (property.PropertyType.IsSubclassOf(typeof(ModelObject)))
{
ModelObject value = (ModelObject)property.GetValue(this);
ModelObject cloneValue = (ModelObject)property.GetValue(clone);
if (value == null || cloneValue == null)
{
property.SetValue(clone, value);
}
else if (value.GetType() != cloneValue.GetType())
{
property.SetValue(clone, value.Clone());
}
else
{
cloneValue.Assign(value);
}
}
else if (ModelCollection.GetItemType(property.PropertyType, out Type itemType))
{
IList collection = (IList)property.GetValue(this);
IList clonedCollection = (IList)property.GetValue(clone);
if (ModelGrowingCollection.TypeMatches(property.PropertyType))
{
ModelGrowingCollectionHelper.Assign(clonedCollection, collection);
}
else
{
ModelCollectionHelper.Assign(clonedCollection, itemType, collection);
}
}
else if (property.PropertyType.IsAssignableFrom(typeof(ICloneable)))
{
ICloneable value = (ICloneable)property.GetValue(this);
property.SetValue(clone, value?.Clone());
}
else
{
object value = property.GetValue(this);
property.SetValue(clone, value);
}
}
return(clone);
}
