DatePicker binding to Odata Model issue

Hi Everyone,

I'm having trouble figuring out how to bind data to my sap.m.DatePicker while using XML views.  From the example in the "SAPUI5 Explored" content, I see:

<DatePicker  id="DP4"  value="{path:'/dateValue', type:'sap.ui.model.type.Date', formatOptions: { style: 'medium'}}"  />

However, this is using a json model where they create a date using Date().  In my case, I have an Edm.DateTime value coming from an Odata service and can't seem to figure out how to bind it to my DatePicker. 

One thing I finally got to work for displaying the date was:

value="{path:'Tdate', formatter:'fnDateTimeFormatter'}"

With this formatter function:

function fnDateTimeFormatter(oValue){  if (oValue == undefined || oValue == "")  return;    var oDateFormat = sap.ui.core.format.DateFormat.getDateTimeInstance({pattern: "yyyy/MM/dd"});    //return oDateFormat.format(new Date(oValue));    return oDateFormat.format(oValue);
};

When the value was updated, though, it did not update the model.

Any help would be greatly appreciated!