void Control_QueryTextChange(object sender, Android.Widget.SearchView.QueryTextChangeEventArgs e)
 {
     if (string.IsNullOrEmpty(e.NewText))
     {
         Control.ClearFocus();
     }
 }
        private void Sv_QueryTextChange(object sender, Android.Widget.SearchView.QueryTextChangeEventArgs e)
        {
            UserObject_purchase        myObj;
            List <UserObject_purchase> mylist = new List <UserObject_purchase>();
            //throw new System.NotImplementedException();
            var mySearchValue = e.NewText;

            System.Console.WriteLine("Search Text is :  is \n\n " + mySearchValue);

            for (int i = 0; i < myUsersList.Count; i++)
            {
                myObj = myUsersList[i];
                if (myObj.name.ToLower().Contains(mySearchValue))
                {
                    mylist.Add(myUsersList[i]);
                }
            }

            searchAdapter     = new Purchase_CustomAdapter(this, mylist);
            listView1.Adapter = searchAdapter;
        }
 void sv_QueryTextChange(object sender, Android.Widget.SearchView.QueryTextChangeEventArgs e)
 {
     //FILTER
     recyclerview_adapter.Filter1.InvokeFilter(e.NewText);
 }