How can I use Mline Class to draw mline in dwg using C#?

hello,

I want to draw mline in the dwg automatically. Here is some codes, and what should I do next?

C# codes by VS2010,FOR AUTOCAD 2010.

 Line dashdot = new Line();   

 dashdot.Linetype = "DashDot";

 MlineStyleElement off1100 = new MlineStyleElement(3720/2,Autodesk.AutoCAD.Colors.Color.FromRgb (0,0,0),dashdot .LinetypeId );  

 MlineStyle mlineStyle = new MlineStyle();

  mlineStyle.Elements.Add(off1100,false );

Mline mline = new Mline(); 

mline.Style = mlineStyle.ObjectId;//HOW CAN I DEFINE THE MLINE? it should contain lines and I don't know

                                                      // how to add lines(may be points) into it.

The code may be wrong.

Please give me some help and advice.

Thanks in advance.

Allen