private IList <IField> FindCommonFields()
{
IList <IField> returnFields = null;
if (_boundContainers.Count > 0)
{
// take all fields from the least selected container...
DrawableContainer leastSelectedContainer = _boundContainers[_boundContainers.Count - 1] as DrawableContainer;
if (leastSelectedContainer != null)
{
returnFields = leastSelectedContainer.GetFields();
for (int i = 0; i < _boundContainers.Count - 1; i++)
{
DrawableContainer dc = _boundContainers[i] as DrawableContainer;
if (dc != null)
{
IList <IField> fieldsToRemove = new List <IField>();
foreach (IField field in returnFields)
{
// ... throw out those that do not apply to one of the other containers
if (!dc.HasField(field.FieldType))
{
fieldsToRemove.Add(field);
}
}
foreach (var field in fieldsToRemove)
{
returnFields.Remove(field);
}
}
}
}
}
return(returnFields ?? new List <IField>());
}
