event-handling

What is the difference between an event handler and a callback function? James Anderson Generally speaking, a 'callback' is under the control of the detecting process. So you tell a GUI manager "call myaction when this button is pressed" and the GUI manager calls the action when the button is pressed. Event Handlers on the other hand operate at one step removed. The GUI manager is configured to send messages to an event handler. You tell an event manager that button pushes are handled by the myaction program. When the button is pushed the GUI manager puts a message on the event handler's queue

private void Subscribe() { EventSystem.Subscribe<User, LoadEventArgs>(GetInfo, EventPhases.Initiated); } public void GetInfo(User user, LoadEventArgs args, EventPhases phase) { TcmUri id = user.Id; string name = user.Title; Console.WriteLine(id.ToString()); Console.WriteLine(name); } I wrote above code and add the assembly in config file in Tridion server but no console window is coming on login of a user The event you were initially subscribing to is the processed phase of any identifiable object with any of its actions, that will trigger basically on every transaction happening in the SDL

I have a masterpage with a language selector dropdownlist it has multiple subpages using the masterpage but, in the subpages (i created a basePage class which i then let the pages inherit from) i override the initializeCulture. like this: protected override void InitializeCulture() { String selectedLanguage = Common.SessionManager.Language; if (selectedLanguage == "") { selectedLanguage = ConfigurationManager.AppSettings.Get("defaultLanguage"); } if (selectedLanguage == "") { selectedLanguage = "nl-BE"; } UICulture = selectedLanguage; Culture = selectedLanguage; Thread.CurrentThread

I want to ask how can someone read keystrokes while in a html page without having focus in a particular field. Is there some event that i can hook a method that reads input? Thanks in advance. PS. We use JQuery if that helps. Use document.onkeypress (or the siblings onkeydown and onkeyup ): document.onkeypress = function (event) { ... }; jQuery offers for these events, e.g., $(document).keypress (function (event) { ... }); This will catch all key press events on your site. Inside the function you can get the numeric code of the pressed key with event.keyCode . Be aware, that there are some

Using the webbrowswer control to cruise a site. Sometimes errors occur which involve a javascript popup box. I would like to do a couple of things when this happens. Know when a javascript alert popups up. I have used the LostFocus event with some success but anytime it losses focus that code runs which is annoying. I would like to know the exact text that the alert box says. I am not sure where to find the alert box object or cast it for use in C#. I looked all over the internet and couldn't find it. Any one any clue? If you're looking to only trap script error dialogs that appear, I would

I have a bunch of TextBoxes in my WinForm UserControl. Each of those text boxes has few event handlers such as On_Enter - show ListBox with suggestions, On_KeyUP - if Keys.Code == Keys.Enter - SelectNextControl(). When I place that control in a Form, none of those events fire up. How to expose all those events to the containing form? How to make UserControl's events fire up event handlers of that UserControl? Ben So, if I understand correct, I think there are 2 ways you can proceed: Approach 1 In the UserControl, set the Modifiers property of each textbox (or the ones you are interested in) to

I have a JFrame which holds a JXTable (from SwingX dependency) and a JButton . Once I click the JButton the table should get updated each time. In my case it gets updated only at the first time. Other events also get triggered on the button click (which happens each time I click the button). Only the table is not refreshed with the new rows added. I am using DeafultTableModel and have tried (explicit trigger) all suggested methods like repaint , fireTableDataChanged etc. Can someone please help? EDIT-1 (code snippet added): - // the actions will take place when VALIDATE button is clicked