asp.net mvc - Model Binding to view in MVC -

asp.net mvc - Model Binding to view in MVC -

i beginner mvc , know how can set binded model vaule viewing. here example.

public class datatypes { public guid itemid { get; set; } [required()] public string name { get; set; } [required()] public string status { get; set; } [required()] public datamodel datamodel { get; set; } // binding } public class datamodel { public string activity { get; set; } public datetime ?datetime { get; set; } }

with above model class, sucessfully able bind info ui backend problem how can retrun same info ui using above. tried below code when comes setting vaules binded class (datamodel)

this.datatype.itemid = // guid stored vaule in database this.datatype.name = // name stored vaule in database this.datatype.status = // status stored vaule in database // set activity ui - error.....!!!!!! // error nullreferenceexception unhandled this.datatype.datamodel.activity = // activity stored vaule in database this.datatype.datamodel.datetime = // datetime stored vaule in database homecoming view(this.datatype);

any work around above issue?

advance thanks, hv

it appears forgot instantiate this.datatype.datamodel:

this.datatype.datamodel = new datamodel(); this.datatype.datamodel.activity = // activity stored vaule in database this.datatype.datamodel.datetime

asp.net-mvc model-view-controller asp.net-mvc-2