c# - Add contact programmatically, with number phone -

c# - Add contact programmatically, with number phone -

i want programmatically add together contact. follow this. can add together info contact without number phone. class storedcontact doesn't have 'phone number' property. i'm stuck on this. know savecontacttask, want save contact programmatically, without user inputs. know possible, because exist app doing it: fb, vk example. please, help me, how can save total contact info phone number programmatically, or tell me why can't it, , how apps it?

did tried next code?

idictionary<string, object> props = await contact.getpropertiesasync(); props.add(knowncontactproperties.telephone, "yourtelephone"); props.add(knowncontactproperties.mobiletelephone, "mobiletele"); props.add(knowncontactproperties.alternatemobiletelephone, "mobiletele"); props.add(knowncontactproperties.worktelephone, "mobiletele"); props.add(knowncontactproperties.alternateworktelephone, "mobiletele");

hope helps

c# windows-phone-8.1 contacts silverlight-5.0