action

Ruby on rails 3 link_to controller and action

由 别说谁变了你拦得住时间么 提交于 2019-12-30 02:33:06
问题 I know this is probably a pretty simple concept. I am trying to create a link to a controller and action. For example I have a link in my layout file to update a record when a link is clicked, so I need to be able to link to the controller and action. How would I accomplish this? 回答1: link_to "Label", :controller => :my_controller, :action => :index See url_for. 回答2: Also with CSS: <%= link_to "Purchase", { :controller => :transactions, :action => :purchase }, { class: "btn btn-primary btn-lg

Please Explain .NET Delegates

由 北城以北 提交于 2019-12-30 02:08:15
问题 So I read MSDN and Stack Overflow. I understand what the Action Delegate does in general but it is not clicking no matter how many examples I do. In general, the same goes for the idea of delegates. So here is my question. When you have a function like this: public GetCustomers(Action<IEnumerable<Customer>,Exception> callBack) { } What is this, and what should I pass to it? 回答1: it expects a function that takes IEnumerable and Exception and returns void. void SendExceptionToCustomers

Error 404 issues using Struts application

由 馋奶兔 提交于 2019-12-29 07:54:05
问题 I am having some issues running a Struts web app since few days. I tried several solutions from StackOverflow relating to my problem but none of them works. web.xml <display-name>Struts2 Application</display-name> <filter> <filter-name>struts2</filter-name> <filter-class> org.apache.struts2.dispatcher.FilterDispatcher </filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <welcome-file-list> <welcome-file>Login.jsp<

How do I manually invoke an Action in swing?

由 徘徊边缘 提交于 2019-12-28 16:31:37
问题 For the life of me I cannot seem to find details on Java Swing Actions :'( When I came across them I immediately realised their usefulness. So far it's all been easy to work with. Now I'm stuck with one little thing: How do I run them manually? I mean by code? Note that I am building the GUI using Netbeans (if that makes any difference). I've come as far as: Application a = Application.getInstance(JPADemoApp.class); ApplicationContext ctx = a.getContext(); ActionMap am = ctx.getActionMap

How to add entry to 'More' menu or top menu to add action on multiple selections?

由 蹲街弑〆低调 提交于 2019-12-28 16:14:29
问题 Goal I want to create delivery from a selection of order lines, but I can't get the button to appear. Module compose_delivery_order/ ├── delivery_order_button.py ├── delivery_order_button.xml ├── images/ │ └── delivery_order_button.png ├── __init__.py ├── __openerp__.py ├── order_to_invoice_create_delivery_button.py ├── order_to_invoice_create_delivery_button.xml ← I'm working on this ├── sale_order_button.py └── sale_order_confirm_button.xml XML <record> <record id="action_sale_order

AbstractAction as WindowListener

由 南楼画角 提交于 2019-12-28 06:23:28
问题 I'm trying to separate function from state in my GUI application by the use of Action objects. I've been successful in using these to create menu items and buttons that have the same functionality. My problem is this: I want to have the same Action for both the 'exit' item in my menu and the close button of the frame. Currently I've been able to solve it by adding the following WindowListener to the frame: private class MainWindowListener extends WindowAdapter { @Override public void

Reflection Performance - Create Delegate (Properties C#)

由 感情迁移 提交于 2019-12-28 05:01:04
问题 I'm having performance problems with using reflection. So I decided to create delegates for the properties of my objects and so far got this: TestClass cwp = new TestClass(); var propertyInt = typeof(TestClass).GetProperties().Single(obj => obj.Name == "AnyValue"); var access = BuildGetAccessor(propertyInt.GetGetMethod()); var result = access(cwp); static Func<object, object> BuildGetAccessor(MethodInfo method) { var obj = Expression.Parameter(typeof(object), "o"); Expression<Func<object,

vuex-Actions的用法

由 不羁岁月 提交于 2019-12-27 16:44:11
Action 类似于 mutation，不同在于： Action 提交的是 mutation，而不是直接变更状态. Action 是异步的，mutation是同步的。 沿用vuex学习---简介的案例：这里是加10 减1 1.在store.js 中 代码为： import Vue from 'vue' import Vuex from 'vuex' //使用vuex模块 Vue.use(Vuex); //声明静态常量为4 const state = { count : 4 }; const mutations = { add(state,n){ state.count +=n.a; }, sub(state){ state.count--; } }; const actions = { //2种书写方式 addplus(context){ //可以理解为代表了整个的context context.commit('add',{a:10}) }, subplus({commit}){ commit('sub'); } }; //导出一个模块 export default new Vuex.Store({ state, mutations, actions }) 2.在App.vue中 代码如下： <template> <div id= "app" > <div id= "appaaa"

Setting action listener on system applications

由 时光毁灭记忆、已成空白 提交于 2019-12-27 03:31:52
问题 How can I set the action listener on system applications? What I want is: when I start writing on the notepad, my action listener should detect it and I should be able to view what I had typed. The same that happens in a keylogger . This was just the case of notepad but I want that every time I type something my program should be able to view it. Example: after opening Chrome, I typed java in the search bar. Now my program's action listener should be able to detect what I typed. 回答1: You can

Struts2拦截器的使用 (详解)

由 不羁岁月 提交于 2019-12-26 17:16:49
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 如何使用struts2拦截器，或者自定义拦截器。特别注意，在使用拦截器的时候，在Action里面必须最后一定要引用struts2自带的拦截器缺省堆栈defaultStack,如下(这里我是引用了struts2自带的checkbox拦截器)： <interceptor-ref name="checkbox"> <param name="uncheckedValue">0</param> </interceptor-ref> <interceptor-ref name="defaultStack"/>(必须加，否则出错) 也可以改为对全局Action设置自己需要的拦截器，如下： 在struts.xml里面定义全局的配置设置 <package name="struts-shop" extends="struts-default"> <interceptors> <interceptor-stack name=" myStack "> <interceptor-ref name="checkbox"> <param name="uncheckedValue">0</param> </interceptor-ref> <interceptor-ref name="defaultStack"/> </interceptor
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