android - Update listview inside ListFragment from Cursor Adapter -

in android have custom adapter, in custom adapter create view text , button delete text. of works fine , can delete record database have been unable refresh list.

the list looks little this:

------------------------------------ text text text text | delete button| ------------------------------------ text text text text | delete button| ------------------------------------ 

my first instinct use this:

qclistfragment frag = (qclistfragment) getsupportfragmentmanager().findfragmentbyid(r.id.listfragment); 

at point call method inside list fragment re-query list... cant because adapter not extend fragment. i'm finding hard let fragment know data has been changed.

anyhow, last thought rebuild activity thought that not best thing , there had better way... i'm sure simple i'm missing last question was!

(i can post more code if helpful) update: here entire adapter class

public class calccursoradapter extends simplecursoradapter implements filterable{

private context mcontext; private listview mlistview; private int mlayout; private cursor mcursor;  protected static class viewholder {     protected textview text;     protected imagebutton button;     private int position;   }   @suppresswarnings("deprecation") public calccursoradapter(context context, int layout, cursor c, string[] from, int[] to)  {     super(context, layout, c, from, to);     this.mcontext = context;     this.mlayout = layout;     this.mcursor = c;      //mlistview = .getlistview();  }         @override public void bindview(view view, context context, cursor cursor) {     textview summary = (textview)view.findviewbyid(r.id.calctvprice);     textview savings = (textview)view.findviewbyid(r.id.calctvsavings);     summary.settext(cursor.getstring(cursor.getcolumnindexorthrow("qcfinalprice")));     savings.settext(cursor.getstring(cursor.getcolumnindexorthrow("qcsavings")));    }  @override public view newview(context context, cursor cursor, viewgroup parent) {     viewholder holder = new viewholder();      layoutinflater inflater = layoutinflater.from(context);     view v = inflater.inflate(r.layout.calc_list_item, parent, false);      holder.button = (imagebutton) v.findviewbyid(r.id.qcbtndelete);     holder.button.setonclicklistener(deletebutton);     holder.position = cursor.getint(cursor.getcolumnindexorthrow("_id"));     bindview(v, context, cursor);     v.settag(holder);       return v;  }  private onclicklistener deletebutton = new onclicklistener() {     public void onclick(view v){         view view = (view) v.getparent();         viewholder holder = (viewholder) view.gettag();         int position = holder.position;         dbhelper mdbhelper;         mdbhelper = new dbhelper(mcontext);         mdbhelper.open();         mdbhelper.deletecalc(position);         mdbhelper.close();         string test = integer.tostring(position);         toast.maketext(mcontext.getapplicationcontext(), test, toast.length_short).show();         notifydatasetchanged();      } };   public long qcitemid(int position) {      return position; } 

}

any appreciated!

thanks.

i think misunderstood concept of adapter , fragment. can set adapter fragment or adapterview in fragment. after requery data, call adapter.notifydatasetchanged(), fragment or adapterview refreshed.