Returns false if all members of an object are null

AllPropertiesNullOrEmpty.cs

/// <summary>
/// Iterates through an object's properties and checks of any of them are null.
/// </summary>
public static bool AllPropertiesNullOrEmpty(this object theObject)
{
    var propertiesNotNull = theObject.GetType()
         .GetProperties()
         .Select(pi => pi.GetValue(theObject))
         .Any(value => value != null);

    if(propertiesNotNull)
    {
        return false;
    }
    return true;
}