public Camera Camera {get;}

var layout = LayoutView.Active.Layout;
var mf = layout.GetElementsAsFlattenedList().OfType<MapFrame>()
  .First(mf => mf.Name == mapFrame);
var autoCamera = mf.GetAutoCamera();
autoCamera.Source = AutoCameraSource.Fixed;
autoCamera.AutoCameraType = AutoCameraType.Center;

var camera = mf.GetMapView(LayoutView.Active).Camera;
var center = mf.GetViewCenter();

//var extent = EnvelopeBuilderEx.CreateEnvelope(
//    400748.62, 800296.4, 1310669.05, 1424520.74, mf.Map.SpatialReference);
//autoCamera.Extent = extent;

var camera2 = new CIMViewCamera()
{
  Heading = 0,
  Pitch = -90,
  Roll = 0,
  Scale = 21169571,
  X = 855708,
  Y = 1112409,
  Z = double.NaN
};
autoCamera.Camera = camera2;
var states = mf.Map.GetLayersAsFlattenedList().First(l => l.Name == "State_Polygons");
autoCamera.IntersectLayerPath = states.URI;

if (mf.ValidateAutoCamera(autoCamera) &&
  !mf.IsMapSeriesMapFrame())
  mf.SetAutoCamera(autoCamera);

var layout = LayoutView.Active.Layout;
var mf = layout.GetElementsAsFlattenedList().OfType<MapFrame>()
  .First(mf => mf.Name == mapFrame);
var autoCamera = mf.GetAutoCamera();
autoCamera.Source = AutoCameraSource.Fixed;
autoCamera.AutoCameraType = AutoCameraType.CenterAndScale;

var camera = mf.GetMapView(LayoutView.Active).Camera;
var center = mf.GetViewCenter();

//var extent = EnvelopeBuilderEx.CreateEnvelope(
//    400748.62, 800296.4, 1310669.05, 1424520.74, mf.Map.SpatialReference);
//autoCamera.Extent = extent;

var camera2 = new CIMViewCamera()
{
  Heading = 0,
  Pitch = -90,
  Roll = 0,
  Scale = 21169571,
  X = 1310669.0 + ((400748.5 - 1310669.0) / 2.0),
  Y = 800296.4 + ((1424520.74 - 800296.4) / 2.0),
  Z = double.NaN
};
autoCamera.Camera = camera2;
var states = mf.Map.GetLayersAsFlattenedList().First(l => l.Name == "State_Polygons");
//autoCamera.IntersectLayerPath = states.URI;


if (mf.ValidateAutoCamera(autoCamera) &&
  !mf.IsMapSeriesMapFrame())
  mf.SetAutoCamera(autoCamera);

var layout = LayoutView.Active.Layout;
var mf = layout.GetElementsAsFlattenedList().OfType<MapFrame>()
  .First(mf => mf.Name == mapFrame);
var autoCamera = mf.GetAutoCamera();
autoCamera.Source = AutoCameraSource.Fixed;
autoCamera.AutoCameraType = AutoCameraType.Scale;

var camera = mf.GetMapView(LayoutView.Active).Camera;
var center = mf.GetViewCenter();

//var extent = EnvelopeBuilderEx.CreateEnvelope(
//    400748.62, 800296.4, 1310669.05, 1424520.74, mf.Map.SpatialReference);
//autoCamera.Extent = extent;

var camera2 = new CIMViewCamera()
{
  Heading = 0,
  Pitch = -90,
  Roll = 0,
  Scale = 20000571,
  X = 1310669.0 + ((400748.5 - 1310669.0) / 2.0),
  Y = 800296.4 + ((1424520.74 - 800296.4) / 2.0),
  Z = double.NaN
};
autoCamera.Camera = camera2;
var states = mf.Map.GetLayersAsFlattenedList().First(l => l.Name == "State_Polygons");
//autoCamera.IntersectLayerPath = states.URI;

if (mf.ValidateAutoCamera(autoCamera) &&
  !mf.IsMapSeriesMapFrame())
  mf.SetAutoCamera(autoCamera);

public Task<bool> RotateView(double heading)
{
  //Get the active map view.
  var mapView = MapView.Active;
  if (mapView == null)
    return Task.FromResult(false);

  //Get the camera for the view, adjust the heading and zoom to the new camera position.
  var camera = mapView.Camera;
  camera.Heading = heading;
  return mapView.ZoomToAsync(camera, TimeSpan.Zero);
}

// or use the synchronous method
public Task<bool> RotateViewAsync(double heading)
{
  return QueuedTask.Run(() =>
  {
    //Get the active map view.
    var mapView = MapView.Active;
    if (mapView == null)
      return false;

    //Get the camera for the view, adjust the heading and zoom to the new camera position.
    var camera = mapView.Camera;
    camera.Heading = heading;
    return mapView.ZoomTo(camera, TimeSpan.Zero);
  });
}