public static IType GetDataType(DocumentNode dataNode)
{
if (dataNode == null)
{
return((IType)null);
}
IType type1 = dataNode.Type;
IType type2;
if (dataNode is DocumentPrimitiveNode)
{
type2 = DocumentPrimitiveNode.GetValueAsType(dataNode) ?? dataNode.Type;
}
else
{
DocumentCompositeNode documentCompositeNode = (DocumentCompositeNode)dataNode;
if (PlatformTypes.ObjectDataProvider.IsAssignableFrom((ITypeId)dataNode.Type))
{
type2 = DataContextHelper.GetObjectDataProviderType(documentCompositeNode);
}
else if (PlatformTypes.CollectionViewSource.IsAssignableFrom((ITypeId)dataNode.Type))
{
type2 = DataContextHelper.GetCollectionViewSourceType(documentCompositeNode);
}
else if (dataNode.Type.IsBinding)
{
type2 = DataContextHelper.GetBindingType(documentCompositeNode);
}
else if (dataNode.Type.RuntimeType == typeof(DesignInstanceExtension))
{
type2 = DataContextHelper.GetDesignInstanceType(documentCompositeNode);
}
else if (dataNode.Type.RuntimeType == typeof(DesignDataExtension))
{
type2 = DataContextHelper.GetDesignDataType(documentCompositeNode);
}
else
{
if (!PlatformTypes.DataTemplate.IsAssignableFrom((ITypeId)dataNode.Type))
{
return(dataNode.Type);
}
type2 = DataContextHelper.GetDataTemplateType(documentCompositeNode);
}
if (type2 == null || type2.RuntimeType == (Type)null)
{
type2 = dataNode.TypeResolver.ResolveType(PlatformTypes.Object);
}
}
return(type2);
}