event-handling

问题 Is there any way to log All other Registered Event handlers when an event handler gets registered? Also Is there any way to log All Events emitted, and name of handler functions that gets triggered in when an event gets emitted during runtime? If the nodejs application triggers chained events (one event triggering another ) and each event has multiple handlers, when exception occurs at leaf of event-handler-chain, stacktrace does not show complete information of the context. Event log and

问题 I have this code going to where I have a green box with buttons around it to change the hue, saturation, and make it darker and lighter. I am having trouble with the color changes. if anyone could help this would be greatly appreciated. I need to use the event handler to do so. if anyone can help me with this problem it would be greatly appreciated. This is what I am supposed to do. As I said I'm just having trouble getting the color changes part of it. ColorPane: extends Pane. It will have

问题 I'm ready to pull my hair out over this. I'm working on game GUI interface which has a map consisting of a grid of cells. The grid of cells is composed of a StackPane and then several layers inside consisting of either ImageViews or Shapes etc. The whole thing is contained in a GridPane, which comprises the center element of a BorderPane; I can't add a mouse event to the underlying scene because then all the nodes get it -> no good. I need to highlight the nodes under the mouse. Here's the

问题 When using a jQuery delegated event handler, how do I get the descendant selector? For example, in the following table, I want to select the table row that was clicked: <div id='timeline'> <table> <tr data-somedata=5><td>First Row</td></tr> <tr data-somedata=100><td>Another row</td></tr> </table> </div> The table is added dynamically, so I'm using a delegated event handler. $("#timeline").on('click', $("tr"), function(event){ console.debug($(this)); // This selects the entire #timeline

问题 I am creating a button on page dynamically. now i want to use button click event on that button. How can i do this in VB.net & asp.net? My code: Page Load: Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load Try LoadControls() Catch ex As Exception End Try End Sub Load Controls Private Sub LoadControls() Try Dim ButtonTable As New HtmlTable Dim ButtonTableRow As New HtmlTableRow Dim ButtonTableCell As New HtmlTableCell Dim btnCode As New Button btnCode.ID = "btnCode"

问题 My application is of such a nature that I need to jump around many windows consecutively. From my menu window I need to open another window (from the selection) and the disable or close the menu window. What I'm currently using is window.show and then this.close() method to close the menu window. Ex: private void MainMenuControl_Link1MouseDown(object sender, RoutedEventArgs e) { // Utilities UtilitiesMenyWindow UtilitiesMenyWindow = new UtilitiesMenyWindow(); // Assign Variable to window

问题 I've got a page and would like to append the onserverclick event to my existing HtmlAnchor. In the design view I am first adding the control <a runat="server" id="lnkFre" title="FR" onclick="document.getElementById('ctl00_hidLang').value='en-US';"><span>Français</span> </a> I tried like this. HtmlAnchor lnkFre = FindControl("lnkFre") as HtmlAnchor; lnkFre.ServerClick += new EventHandler(lnkLang_Click); Here the lnkLang_Click is an event in a class which is accessible from this page. But at

问题 I am developing Java desktop application in NetBeans platform. I have several JFrame s and within these frames I have several JButton s. My application will be run on touch panels like industrial PCs, Linux based panel PCs etc. So I will need to use long press event of a button. How can I handle long press event of JButton ? Click event is OK but I could not find any references or samples about long press/long click. 回答1: If you decided for your implementation to use JButton, you should be

问题 The jQuery documentation for the .toggle() method states: The .toggle() method is provided for convenience. It is relatively straightforward to implement the same behavior by hand, and this can be necessary if the assumptions built into .toggle() prove limiting. The assumptions built into .toggle have proven limiting for my current task, but the documentation doesn't elaborate on how to implement the same behavior. I need to pass eventData to the handler functions provided to toggle() , but

问题 I'm successfully rendering dynamic data with Ember: <div id="ember_generated">{{result}}</div> I want to get this data on every change with jQuery. The following is the best I can think of, but it doesn't do much: $("body").on("change", "#ember_generated", function() { }); 回答1: What you want to do is: $('body').on('DOMSubtreeModified', '#ember_generated', function () { }); 来源： https://stackoverflow.com/questions/24855890/get-ember-generated-value-with-jquery