public static IEdmProperty GetPropertyIgnoreCase(this IEdmStructuredType entityType, String propertyName)
{
IEdmProperty?edmProperty = entityType.GetPropertyIgnoreCaseOrNull(propertyName);
if (edmProperty == null)
{
throw new InvalidOperationException("Property " + propertyName + " not found in IEdmStructuredType " + entityType.FullTypeName());
}
return(edmProperty);
}