Rotate block with the reference line

[kmkxperia]

I am able to rotate the Block but I want the reference line to be shown when I am rotating same as it is shown During Rotate command. 

Attached video I run my command and for second I use the rotate command. 

[CommandMethod("TestRotation")]
public static void TestEntityJigger5_Method()
{
    Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
    Database db = HostApplicationServices.WorkingDatabase;

    PromptEntityResult selRes = ed.GetEntity("Pick a block:");
    if (selRes.Status == PromptStatus.OK)
    {
        using (Transaction tr = db.TransactionManager.StartTransaction())
        {
            BlockReference ent = tr.GetObject(selRes.ObjectId, OpenMode.ForWrite) as BlockReference;
            if (ent != null)
            {
                using (Transaction tr1 = db.TransactionManager.StartTransaction())
                {
                    ent.Highlight();
                    tr1.Commit();
                }

                if (BlockRotating.Jig(ent))
                    tr.Commit();
                else
                    tr.Abort();
            }
        }
    }
}

public class BlockRotating : EntityJig
{
    #region Fields

    public int mCurJigFactorNumber = 1;

    private double mRotation = 0.0;    // Factor #1

    #endregion

    #region Constructors

    public BlockRotating(Entity ent)
        : base(ent)
    {
    }

    #endregion

    #region Overrides

    protected override bool Update()
    {
        switch (mCurJigFactorNumber)
        {
            case 1:
                (Entity as BlockReference).Rotation = mRotation;
                break;
            default:
                return false;
        }

        return true;
    }

    protected override SamplerStatus Sampler(JigPrompts prompts)
    {
        switch (mCurJigFactorNumber)
        {
            case 1:
                JigPromptAngleOptions prOptions1 = new JigPromptAngleOptions("\nBlock rotation angle:");
                prOptions1.BasePoint = (Entity as BlockReference).Position;
                prOptions1.UseBasePoint = true;
                PromptDoubleResult prResult1 = prompts.AcquireAngle(prOptions1);
                if (prResult1.Status == PromptStatus.Cancel) return SamplerStatus.Cancel;

                if (prResult1.Value.Equals(mRotation))
                {
                    return SamplerStatus.NoChange;
                }
                else
                {
                    mRotation = prResult1.Value;
                    return SamplerStatus.OK;
                }
            default:
                break;
        }

        return SamplerStatus.OK;
    }

    #endregion

    #region Method to Call

    public static bool Jig(BlockReference ent)
    {
        try
        {
            Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
            BlockRotating jigger = new BlockRotating(ent);
            PromptResult pr;
            do
            {
                pr = ed.Drag(jigger);
                jigger.mCurJigFactorNumber++;
            } while (pr.Status != PromptStatus.Cancel &&
                        pr.Status != PromptStatus.Error &&
                        pr.Status != PromptStatus.Keyword &&
                        jigger.mCurJigFactorNumber <= 1);

            return pr.Status == PromptStatus.OK;
        }
        catch
        {
            return false;
        }
    }

    #endregion
}

What I am Expecting

[_gile · Accepted solution]

Hi,

Add an option to the JigPromptAngleOptions:

prOptions1.Cursor = CursorType.RubberBand;