state

问题 I've been looking for a natural way to implement state-dependent behaviour (state machines) in Python objects. The goal was for objects to have a small number of states, or "mutually orthogonal" aspects of state, which would determine their concrete behaviour at each moment. In other words, the method returned by x.foo should be determined by the current state of x , and if x changes its state, the implementation of some or all of its methods should change accordingly. (I think some call it

问题 What's the general (if there is any) consensus on storing view states as part of the URL in Angularjs and how would I go about doing it? I have a fairly complex view/route with many filters to set, tabs, etc which result in a view state. I see the advantage for storing the state of all these view components as part of the URL in an easier navigation within the application (navigating back would restore the previous view with all selections made without loading the state from the server, which

问题 I have been trying to create a 3 column drop-down list as Country, State, City. The list of state will be shown based on which country is selected. and the same thing happens to city depends on which State is selected. My database is as follow. If a country is selected, then states will show depending on country. Same thing happens to City A member will select his country,state, and city from an already existed Country, State, City databases from django.db import models class Member(models

问题 I have been trying to create a 3 column drop-down list as Country, State, City. The list of state will be shown based on which country is selected. and the same thing happens to city depends on which State is selected. My database is as follow. If a country is selected, then states will show depending on country. Same thing happens to City A member will select his country,state, and city from an already existed Country, State, City databases from django.db import models class Member(models

问题 I have been trying to create a 3 column drop-down list as Country, State, City. The list of state will be shown based on which country is selected. and the same thing happens to city depends on which State is selected. My database is as follow. If a country is selected, then states will show depending on country. Same thing happens to City A member will select his country,state, and city from an already existed Country, State, City databases from django.db import models class Member(models

问题 I'm trying to implement a piece of code I found to store the state of a CheckBox that is in a ListView but it didn't worked. Does anyone have any idea why my code from my adapter isn't working? package kevin.erica.box; import java.util.ArrayList; import kevin.erica.box.R; import android.R.color; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget

问题 I am using a filter for my jqGrid grid, and the data is in groups, defaulting first state of collapsed. If a user open a group or 2 (expaning the groups) , then does the filter, the grid reloads the data, filters it correctly, but then I loose the expanded state of the groups the user opened. Is there a way to not have it, toggle back to the default state of collapsed when doing a filter? Thanks in Advance. 回答1: I find your question interesting. So +1 from me. I made a demo which shows how to

问题 I start in angular And I want to write a function that will bring template For each state And just when need it. As the principle of "Lazy loading" And after that keep it in the cache when it's the first time I wrote this code But I have errors, and I do not know what I'm wrong, Some things I did not understand in angular so I understand the problematic in my code this is all my code : http://plnkr.co/edit/qzKJUwNImVX8EGb3ymnT?p=preview var app = angular.module('myApp', ['ui.router']); var

问题 I have nested UI states. I want to load only child state not the parent state. Child State : $stateProvider.state('app.test', { url: '^/test?search', controller: 'TestController', templateUrl: 'test/test.tpl.html', pageTitle: 'Tests', }); Parent State : $stateProvider.state('app', { url: '/app', abstract: true, templateUrl: 'parent/main-content.tpl.html', controller: 'ParentController' }) When I try to load only child state in test page using $state.go('.', {search: searchTerm}); It loads

问题 I'm trying to restore the state of my multi-tabbed iPhone application. There are more than 5 tabs, each with it's own navigation controller. On applicationDidFinishLaunching, I determine which was the last tab the user was on and set it with myTabController.selectedIndex = persistedTabIndex; I then call a function on that tab's root view controller to restore itself. The problem is, if the tab has been moved to the "More" page, the view has not been loaded and the call disappears into NIL