public IEnumerable <TAttribute> GetAttribute <TAttribute>(string propertyName) where TAttribute : Attribute
{
if (!ContainsProperty(propertyName))
{
throw new Exception("Property doesn't exist");
}
if (InstancePropertyDescriptionCollection != null & InstancePropertyDescriptionCollection.ContainsKey(propertyName))
{
var property = GetProperties()[propertyName];
var collection = property.Attributes.OfType <TAttribute>().ToList();
if (properties.ContainsKey(propertyName))
{
var dynamicProperty = properties[propertyName];
collection.AddRange(dynamicProperty.Attributes.OfType <TAttribute>());
}
return(collection);
}
else
{
var property = GetProperties()[propertyName];
return(property.Attributes.OfType <TAttribute>());
}
}
private object GetMember(string propertyName)
{
if (Instance != null && InstancePropertyDescriptionCollection.ContainsKey(propertyName))
{
return(GetProperties().Find(propertyName, true).GetValue(Instance));
}
else
{
return(GetProperties().Find(propertyName, true).GetValue(_dynamic));
}
}
private void SetMember(string propertyName, object value)
{
var property = GetProperties().Find(propertyName, true);
if (Instance != null && InstancePropertyDescriptionCollection.ContainsKey(propertyName))
{
property.SetValue(Instance, value);
}
else
{
property.SetValue(_dynamic, value);
}
}
public bool RemoveAttribute <TAttribute>(string propertyName) where TAttribute : Attribute
{
if (!ContainsProperty(propertyName))
{
throw new Exception("Property doesn't exist");
}
else if (InstancePropertyDescriptionCollection.ContainsKey(propertyName) && InstancePropertyDescriptionCollection[propertyName].Attributes.OfType <TAttribute>().Count() > 0)
{
throw new Exception("Can't remove attribute from strongly typed instance.");
}
if (properties.ContainsKey(propertyName))
{
DynamicPropertyDescriptor property = properties[propertyName];
properties.Remove(propertyName);
var attributesToCopy = new List <Attribute>();
for (int i = 0; i < property.Attributes.Count; i++)
{
if (property.Attributes[i].GetType() != typeof(TAttribute))
{
attributesToCopy.Add(property.Attributes[i]);
}
}
var newPropertyWithAttribute = new DynamicPropertyDescriptor(_dynamic, propertyName);
foreach (var attribute in attributesToCopy)
{
newPropertyWithAttribute = new DynamicPropertyDescriptor(newPropertyWithAttribute, new Attribute[] { attribute });
}
properties.Add(propertyName, newPropertyWithAttribute);
return(true);
}
return(false);
}
