c# - Loading a string into a textview -

i need load string textview being displayed on new page after button click event. java.lang.runtimeexception keeps getting thrown when click button. "java.lang.reflect.invocationtargetexception"

here section of code:

setcontentview (resource.layout.main);         button button1 = findviewbyid<button>(resource.id.story1);         button1.click += delegate {             setcontentview (resource.layout.next1);             textview textvtest = (textview) findviewbyid(resource.id.textview1);             textvtest.text = "test";         }; 

from first activity, in buttonclick :

 button1.click += delegate {        var activity2 = new intent (this, typeof(activity2));        activity2.putextra ("mydata", "test");        startactivity (activity2);  }; 

in second activity, in oncreate() :

protected override void oncreate (bundle bundle)         {         setcontentview (resource.layout.next1);         textview textvtest = (textview) findviewbyid(resource.id.textview1);          string text = intent.getstringextra ("mydata") ?? "data not available";         textvtest.text = text;          }