c++ - Search QTableView with a value(e.g. ID) which is not displayed -

scenario:

say, have person class

class person{     int id;          // unique value, not displayed     qstring name;    // displayed     qstring address; // displayed      qstring age;     // displayed     etc etc          // displayed } 

the model class using; inherits qabstracttablemodel - mycustommodelclass : qabstracttablemodel . mycustommodelclass has reference person list. person list maintained in class called myalldata outside of model class.

the table does not display id number of person. thing 1 can identify person separately. if want search table data id how can that?

it depends bit on method search model class with. usually, implement qt::userrole in data() method. role either return id or pointer complete structure (using q_declare_metatype).

then, can either work way through model indices on own, calling

model->data(idx, qt::userrole).tovalue<person*>() 

or use methods qt's match(.) , use qt::userrole there.

a third possibility return id if display it, hiding column in view.