action

问题 My problems is in a Struts2 action, where I have a class : public class MyAction<T> extends ActionSupport with a private member like this : private T myData; And I would like to declare this aciton in the struts.xml file, how can i manage to do so ? Thanks for the answer. Ps : I've tried without declaration of T, but it did not work 回答1: For example, you cannot obvioulsy write (in struts-XX.xml) <action name="doSomething" class="xx.xx.MyAction<java.util.Date>"> But you can easily code a class

问题 I have an action defined in the same package as the JDialog. I want to bind the Java Dialog`s close button to this action, without using window listeners. Just set once this action to the button. Can you help me do this, please? Thank you 回答1: The following code should achieve what you need using a WindowAdapter as a WindowListener. The windowClosing method is called exactly once upon pressing the close button. If you plan to add an alternative Close-Button you can always fire a windowClosing

问题 I create class ImageRenderer that which allows me to display in JTable icon png, i would like to add a action when i click on the icon in JTable, ImageRenderer import java.awt.Component; import javax.swing.ImageIcon; import javax.swing.JLabel; import javax.swing.JTable; import javax.swing.table.DefaultTableCellRenderer; class ImageRenderer extends DefaultTableCellRenderer { JLabel lbl = new JLabel(); public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected

问题 In my Find controller I have a method like: public Result findLatest(String repoStr) { ............ } Which is linked through a route: GET /latest controllers.Find.findLatest(repo: String) Then, I have a form in a view like: <form action="@routes.Find.findLatest()" method="get"> .... <select name="repo">....</select> </form> But obviously that is failing, because it is expecting some parameters that I do not fulfill in the action. What is the correct way to do this without having to end up

问题 I often have some piece of code that repeats. Usually, I put them in a function, but sometimes I hate to do this because : it requires too many parameters the code is usually very specific to a little part of the whole. So I finally have two or three function that are only used in one place. So, to simulate Inline code which is missing from C#, I use Action delegates : public void Display(DateTime from, DateTime to) { var start = from.ToOADate(); var end = to.ToOADate(); [...] // This Action

问题 I have a Contact class associated with User class as follows class Contact < ActiveRecord::Base belongs_to :users end In my edit I want to show a dropdown with list of user name as options that component should bind with contact.user_id . How to achieve this? 回答1: There are a number of ways to achieve this, here is one example. <%= f.select :user_id, Contact.all.collect{|c| [c.user.name, c.user.id]} %> This creates an array of contact.user.name and contact.user.id and submits the selected

问题 In C#, is it possible to have an object that has multiple method signatures for an Action<> or delegate? Like this: class Foo { public Action<string> DoSomething; public Action<string, string> DoSomething; } class Bar { public Bar() { Foo f1 = new Foo(); f1.DoSomething = (s) => { Console.Write(s) }; Foo f2 = new Foo(); f2.DoSomething = (s1, s2) => { Console.Write(s1 + s2) }; f1.DoSomething("Hi"); f2.DoSomething("Hi","World"); } } The answer seems to be no, so what is the proper way to

问题 I have just finished putting a login and register bit on my website and now I'm just cleaning things up, but then I came to this problem I have two form action's on one page, each one goes to a different page, easy enough, but I can't seem to get them both on one line. Here is the code for the form actions: <form action='logout.php' method='POST'> <input type='submit' value='Logout' /> </form> <form action='changepassword.php' method='POST'> <input type='submit' value='Change password' /> <

问题 Is it possible to Put Two Form action in one submit button?? the user will able to select two radio buttons and each form action will open the URL in a new window simultaneously. I don't know how to do it and I don't have much knowledge in coding. This code is not mine and I just want to modify. :( here's the code: <form action="http://thegreatpromocode.tk/lite/jonsnow/subscribe" method="post" class="form-subscribe- promo" target="foo" onsubmit="window.open ('','foo','width=450,height=250

问题 I have a method that takes a Action<String> . When the method finishes its processing it calls the Action<String> with the return value. MethodWithCallback((finalResponse)=> { Console.WriteLine(finalResponse); }); I want to use this in a web.api async controller. How do I wrap this method so I can await for this method to complete in an async manner. I cannot modify the method itself, it is in a legacy code base. What I would like to be able to do is this String returnValue = await