Update an object to one of two values, taken from a string

ObjectUpdater3.cs

public static void UpdateFromText<T>(this T target, string changes, bool trueCase = true)
  where T : class
{
  var propsTarget = target.GetType().GetProperties();
  var parts = changes.Split('=');
  if (parts.Length != 2)
    throw new ArgumentOutOfRangeException(parts[0], $"{parts[0]} is not a property of the target");

  var pT = propsTarget.FirstOrDefault(t => t.Name == parts[0]);
  if (pT == null)
    throw new ArgumentOutOfRangeException(parts[0], $"{parts[0]} is not a property of the target");

  try
  {
    var options = parts[1].Split('|');
    if (!trueCase && options.Length <= 1) return;
    var newVal = options[trueCase ? 0 : 1];

    if (newVal == "null")
    {
      pT.SetValue(target, null);
    }
    else
    {
      var targetType = pT.PropertyType.Name == "Nullable`1"
        ? pT.PropertyType.GenericTypeArguments[0]
        : pT.PropertyType;
      object value = Convert.ChangeType(newVal, targetType);
      pT.SetValue(target, value);
    }
  }
  catch (Exception ex)
  {
    throw new ArgumentOutOfRangeException(
      $"{parts[1]} is not assignable to {pT.PropertyType.Name} (Property {parts[0]})", ex);
  }
}