public TypeMetadata(Type entityType)
{
Type type = TypeUtility.GetElementType(entityType);
ClrType = type;
IEnumerable <PropertyDescriptor> properties =
TypeDescriptor.GetProperties(type).Cast <PropertyDescriptor>().OrderBy(p => p.Name)
.Where(p => TypeUtility.IsDataMember(p));
foreach (PropertyDescriptor pd in properties)
{
_properties.Add(new TypePropertyMetadata(pd));
if (TypeDescriptorExtensions.ExplicitAttributes(pd)[typeof(KeyAttribute)] != null)
{
_key.Add(pd.Name);
}
}
}
public TypePropertyMetadata(PropertyDescriptor descriptor)
{
Name = descriptor.Name;
Type elementType = TypeUtility.GetElementType(descriptor.PropertyType);
IsArray = !elementType.Equals(descriptor.PropertyType);
// TODO: What should we do with nullable types here?
ClrType = elementType;
AttributeCollection propertyAttributes = TypeDescriptorExtensions.ExplicitAttributes(descriptor);
// TODO, 336102, ReadOnlyAttribute for editability? RIA used EditableAttribute?
ReadOnlyAttribute readonlyAttr = (ReadOnlyAttribute)propertyAttributes[typeof(ReadOnlyAttribute)];
IsReadOnly = (readonlyAttr != null) ? readonlyAttr.IsReadOnly : false;
AssociationAttribute associationAttr = (AssociationAttribute)propertyAttributes[typeof(AssociationAttribute)];
if (associationAttr != null)
{
Association = new TypePropertyAssociationMetadata(associationAttr);
}
RequiredAttribute requiredAttribute = (RequiredAttribute)propertyAttributes[typeof(RequiredAttribute)];
if (requiredAttribute != null)
{
_validationRules.Add(new TypePropertyValidationRuleMetadata(requiredAttribute));
}
RangeAttribute rangeAttribute = (RangeAttribute)propertyAttributes[typeof(RangeAttribute)];
if (rangeAttribute != null)
{
Type operandType = rangeAttribute.OperandType;
operandType = Nullable.GetUnderlyingType(operandType) ?? operandType;
if (operandType.Equals(typeof(Double)) ||
operandType.Equals(typeof(Int16)) ||
operandType.Equals(typeof(Int32)) ||
operandType.Equals(typeof(Int64)) ||
operandType.Equals(typeof(Single)))
{
_validationRules.Add(new TypePropertyValidationRuleMetadata(rangeAttribute));
}
}
StringLengthAttribute stringLengthAttribute = (StringLengthAttribute)propertyAttributes[typeof(StringLengthAttribute)];
if (stringLengthAttribute != null)
{
_validationRules.Add(new TypePropertyValidationRuleMetadata(stringLengthAttribute));
}
DataTypeAttribute dataTypeAttribute = (DataTypeAttribute)propertyAttributes[typeof(DataTypeAttribute)];
if (dataTypeAttribute != null)
{
if (dataTypeAttribute.DataType.Equals(DataType.EmailAddress) ||
dataTypeAttribute.DataType.Equals(DataType.Url))
{
_validationRules.Add(new TypePropertyValidationRuleMetadata(dataTypeAttribute));
}
}
}