public static FieldDrawer GetObjectDrawer(FieldAttribute attribute)
{
FieldDrawer objectDrawer = null;
Type type = null;
if (!ObjectDrawerUtility.ObjectDrawerForType(attribute.GetType(), ref objectDrawer, ref type, attribute.GetHashCode()))
{
return(null);
}
if (objectDrawer != null)
{
return(objectDrawer);
}
objectDrawer = (Activator.CreateInstance(type) as FieldDrawer);
objectDrawer.Attribute = attribute;
ObjectDrawerUtility.objectDrawerMap.Add(attribute.GetHashCode(), objectDrawer);
return(objectDrawer);
}
private static object GetFieldValue(FieldAttribute fieldAttr, Type valueType, object value)
{
if (value != null)
{
if (fieldAttr.DataType == FieldType.Choice || fieldAttr.DataType == FieldType.MultiChoice)
{
value = EnumExtensions.ParseChoiceValue(valueType, value.ToString());
}
else if (fieldAttr.DataType == FieldType.Lookup && (typeof(LookupFieldAttribute).IsAssignableFrom(fieldAttr.GetType()) || fieldAttr.GetType().IsSubclassOf(typeof(LookupFieldAttribute))))
{
var lookupFieldMap = fieldAttr as LookupFieldAttribute;
if (lookupFieldMap.Result == LookupItemResult.None)
{
return(value);
}
if (value is FieldLookupValue)
{
if (!typeof(FieldLookupValue).IsAssignableFrom(valueType) && !valueType.IsSubclassOf(typeof(FieldLookupValue)))
{
value = lookupFieldMap.Result == LookupItemResult.Id
? (object)(value as FieldLookupValue).LookupId
: (value as FieldLookupValue).LookupValue;
if (valueType.IsArray)
{
var elType = (valueType.GetElementType()
?? valueType.GenericTypeArguments.FirstOrDefault())
?? typeof(object);
value = new[] { SpConverter.ConvertValue(value, elType) }.ToArray(elType);
}
}
}
else if (value is FieldLookupValue[])
{
if (!lookupFieldMap.IsMultiple)
{
var lookupValue = (value as FieldLookupValue[]).FirstOrDefault();
if (lookupValue != null)
{
if (!typeof(FieldLookupValue).IsAssignableFrom(valueType) && !valueType.IsSubclassOf(typeof(FieldLookupValue)))
{
value = lookupFieldMap.Result == LookupItemResult.Id ? (object)lookupValue.LookupId : lookupValue.LookupValue;
}
else
{
value = lookupValue;
}
}
else
{
value = null;
}
}
else
{
var elType = (valueType.GetElementType()
?? valueType.GenericTypeArguments.FirstOrDefault())
?? typeof(object);
if (!typeof(FieldLookupValue).IsAssignableFrom(elType) && !elType.IsSubclassOf(typeof(FieldLookupValue)))
{
var result = lookupFieldMap.Result == LookupItemResult.Id
? (value as FieldLookupValue[]).Select(v => SpConverter.ConvertValue(v.LookupId, elType))
: (value as FieldLookupValue[]).Select(v => SpConverter.ConvertValue(v.LookupValue, elType));
if (valueType.IsArray)
{
value = result.ToArray(elType);
}
else
{
value = result.ToList(elType);
}
}
}
}
}
}
return(value);
}