What would cause click events to not fire?If I run the Visual Studio debug server everything works fine, but when I run the site off my Windows 7 IIS, buttons just postback without their events firing (breakpoints show Im getting page lifecycle events, but no clicks)
View 2 RepliesI am using c# and asp.net with master page for a web application. I am using javascript for some click events to be invoked.
Now I am facing some problems with the click events of the buttons on my page. They suddenly stop firing after click on 4 or 5 buttons.
I have a WebUserControl with a Button and some other controls (placeholder for images, labels). On a certain page, a number of these WebUserControls are created (using Me.LoadControl) and added to a PlaceHolder on the page.When the user clicks the button on either of these usercontrols, I want a method on the page to be called. I have been doing this by handling the Button Click event on the usercontrol, and then letting the usercontrol raise another event. I use AddHandler after creating the usercontrol to add an eventhandler method to this custom event. Sounds confusing? Here's a simple example.
The WebUserControl:
asp Code:
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="TestControl.ascx.vb" Inherits="CSLimitedEdition.Controls.TestControl" %><asp:Button runat="server" ID="btn" Text="Button" />
vb.net Code:
Namespace Controls Public Class TestControl Inherits System.Web.UI.UserControl Public Event ButtonClicked As EventHandler ' Just some property to test with Public Property Number As Integer Protected Sub btn_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btn.Click ' When the button is clicked, raise a ButtonClicked event to handle on the Page RaiseEvent ButtonClicked(Me, e) End Sub End ClassEnd Namespace
The Page to place a number of these controls on:
asp Code:
<%@ Page Title="" Language="vb" AutoEventWireup="false" MasterPageFile="~/Site.Master" CodeBehind="TestPage.aspx.vb" Inherits="CSLimitedEdition.Pages.TestPage" %><asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="server"></asp:Content><asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <p> <asp:Label runat="server" ID="lbl" /> </p> <p> <asp:PlaceHolder runat="server" ID="placeHolder" /> </p> </asp:Content>
vb.net Code:
Imports CSLimitedEdition.Controls Namespace Pages Public Class TestPage Inherits System.Web.UI.Page Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load If Not Me.IsPostBack Then Me.AddControls() End If End Sub Private Sub AddControls() For i As Integer = 1 To 5 ' Create the control Dim c As TestControl = DirectCast(Me.LoadControl("~/Controls/TestControl.ascx"), TestControl) ' Set some property for testing and add event handler c.Number = i AddHandler c.ButtonClicked, AddressOf TestControl_ButtonClicked ' Add it to the place holder placeHolder.Controls.Add(c) Next End Sub Private Sub TestControl_ButtonClicked(ByVal sender As Object, ByVal e As EventArgs) ' When a button on a usercontrol is clicked, set the label text to the 'Number' property of that control Dim c As TestControl = DirectCast(sender, TestControl) lbl.Text = c.Number.ToString() End Sub End ClassEnd Namespace
The idea is this:Button is clicked on the TestControl: TestControl.ButtonClicked event is raised. On the TestPage, the bestControl_ButtonClicked method is called The Number property of the calling TestControl is assigned to a label so I can see it. However, it seems that the TestControl_ButtonClicked method is never called. Via debugging I can confirm that the Button Click event, on the TestControl usercontrol, is fired, so that the TestControl.btn_Click method is called. The TestControl.ButtonClicked event is raised.After creating a TestControl, the AddHandler statement is executed. After clicking a button on the page however, nothing happens. The page just posts back, all the buttons are gone (ok, I'm not loading them again in case of a postback), but the label does not get the text.In fact, the ButtonClick handler method (TestPage.TestControl_ButtonClicked) method is never called! What could be causing this? I am sure that I have been using this method a few weeks ago, in this very project, yet suddenly it has stopped working. I thought it might be a one-time thing but with these new TestControl and TestPage the same thing happens. The same thing happens also in a completely new and separate project. I don't get it, this WAS working?
So I've got a databound grid view within a UpdatePanel.
the user can change the data within the gridview then click a save button to update the data within the database.
However in order to know which rows have been changed I have a textChanged event associated with each textbox, but the event isn't being fired.
Here's the ASP code:
[code]....
through the Sitepoint book "Build Your Own ASP.NET 3.5 Web Site". In chapters 10 and 11 the book covers the DataList and GridView.My project will load data correctly into the list and grid; however, the events are not firing, for example the SelectedIndexChanged event. As far as I can tell no list/grid events are being fired in the code-behind file (the page load event and data binding does occur).There are some similar posts in these forums and on the internet concerning this.
View 2 RepliesI have a nested GridView that is placed inside a ListView. The GridView renders perfectly fine with all the entities that are bound inside its datasource.
Each record in my gridview has two buttons - 'delete' and 'edit'. The issue that I am having is that the methods wired to each of these buttons never get fired.
I think the reason for this behaviour is because my ListView's data binding happens only on the first page load, and not on every subsequent postback. As a result, when a postback happens, the events of the nested gridview are never wired up again - hence my methods are not getting fired.
Here is what my code [simplified] looks like:
[code]...
I tried modifying the above code and removing the "!IsPostBack" clause, and the events actually got fired when a button inside the GridView was clicked. However, I do not feel comfortable doing a databind on every postback and think there should be a better solution than that.
I will go into the background of why i am wanting to do this if necessary but in short. I want to create a WebControl which has a button on it. I provide the most simple of examples to understand why it is not working.
No matter what i try my button event doesnt seem to fire. the code for it is here:
[Code]....
This page:
[Code]....
What am i doing wrong? why wont events fire?
I'm facing a weird issue...My button events are not firing :(I'm using the 3.5 .net framework and I've already tried to run aspnet_regiis -c, clear the browser temp files, use windows integrated authentication, but nothing works...this is the cenario:
- windows server 2003
- app migrated from .net framework 1.1 (which was working fine) to .net framework 3.5
- IE8
I have this strange problem where if I setup IIS to point at a .net 4 webapp none of my events fireSo lets say the site in IIS is "http://www.mysite.com"...any button I click doesnt ever hit a breakpointNow if I add /default.aspx to the end...all the events fire againDefault.aspx is the top default document in IIS
View 2 RepliesI have been trying to solve this problem for several weeks now and it is getting really frustrating. Basically i have a simple project which includes one master page and one content page. the following code is what is found in the content page
<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
[code]...
We have recently put up a new server with IIS7, where we now have published a .NET4 site.
Locally everything works fine, but on this server the Default.aspx is not working. No events are firing at all for this page. Every other page works as should.
We've tried deleting the Default.aspx and adding a new blank one with just a button event but same thing still applies.
We've spent quite some time troubleshooting this without any results. Same problem exists both with and without using a masterpage.
I've been searching a little bit to try and find the answer to this problem. As of right now another person I work with has designed a wizard step with an upload button in part of it. After the person clicks the browse button and selects their file a validation statement comes up saying, "Please click 'upload and continue' or clear the field" and then is supposed to disable the continue button until this is done. He started by adding a RegularExpressionValidator and found it did not solve his problem.
Now that he's out today we're working on trying to solve this and my first though is to actually use a custom validator instead and have it call a function in the back-code for validation which checks to see if the "Upload" click-event has happened. Is there an easy way of verifying whether or not a click-event has occurred. Basically my conditional is shown in the pseudo-code below...
[Code]....
m using ajax control tab container, in which i have placed 5 tab panels....
in first tab panel submit button is woking fine,but in 2nd tabPanel button is giving problem,its not firing even a single event...
I have a DataGrid which i am using on the page alogn with 4 tabs. Clicking on each tab different datasource is getting bing to the data grid. Now following is problem,
There are 4 tabs of UI I have written code to bind data source to data grid on onclick event of tab (which is linkbutton) However when i am clicking on the tab data gets bind to data grid but item created and item databound event which i have attached to grid on page init() are not firing on the first time.
I also have attached page index changed event clicking on which executes item created and item data bound event
I have got an issue after updation in UpdatePanel. The issue is the jquery events are not working/firing after the updation in UpdatePanel. At first time, the jquery events work, but not after the updation in UpdatePanel. If I remove the UpdatePanel, the problem is solved. But I have to use the UpdatePanel.
View 1 RepliesI have a user control which I load dynamically using LoadControl. In this UserControl I have a button with assigned OnClick event, but when I click that button, the event is not fired. I'm populating the user control in UpdatePanel's Load event (I invoke __dopostback from JS).
[Code]....
Here I load user control in the page
[Code]....
I have an algorithm but don't know if this is the correct way. like mentioned, i would like my label to appear after the user clicks on 4 different buttons, each button with auto post back.
if(button 1 click && button 2 click && button 3 click && button 4 click)
label1.visible = true;
I'm in the process of trying to figure out how to program in ASP.Net.
My senario is this:
(A) I've created a master Page
(B) In The master page I have a Login Control that is contained in a LoginView control.
I cannot figure out how to get the events to fire when it's in this sitution.
If the Login control is situated on it's own the events (LogginIn etc) will fire?
How can I stop Search engines firing events.....
I have a button that adds a product to my shopping basket. it has a postbackurl="../shoppingbasket.aspx?productID=1" when the page is loaded I get the querystring (ProductID) and add it to my database. Well I have been watching the database and I can see that in 1 day the whole of my product range has been added to the shopping basket, not only that but every time it fires the event it creates a NEW basket thus messing up my shopping basket ID's.
So my question is, I want the search engines to index my product pages, BUT I do not want then to add to my basket ( i.e. firing the postbackurl ) I have tried may things like rel="nofollow" adding the URL to my robot.txt. I don't really want to use recaptha as I have do before and have many complaits about it.
I have a ASPX Page that contains several user controls, which are loaded dynamically after user interaction.
On one of ascx I have a hidden button that is being clicked on some user actions (via button.click()), which works fine on 1st page load. But after the form is being submitted once, the other ascx is loaded. There if user clicks the back button and resubmits the 1st form (again via button.click()), button_clicked event on server does not fire again.
I am in a deep deep trouble because I am trying to use web parts in my project,I have implemnented custom provider for personalization(coz, I am using MYSql as a database).I am using three web part zones and each zone hve more than three controls and whenever I try to drag and drop the parts from one zone to other zone, for the first time the droped element successfuly runs but after then if we again try to drop another element from other zone to this then the already dropped element goes to its original place from where it is dropped,The 2nd problem is that close and minimize verbs are not firing well, e.g if there,My provider personlaization class is as,
[Code]....
and the markup is as,
<form id="form1" runat="server">
<cc3:Script ID="Script1" runat="server" />
<asp:ScriptManager ID="ScriptManager1" runat="server">
[code]...
I've dynamically created 3 checkboxes as you can see in the code below. I also wrote an event handler below. When I run the code, the 3 checkboxes show up, but the event handling does not work right. Whenever there is postback from any of the 3 checkboxes, Label1 reflects the state of checkbox #3, no matter if I toggle checkbox #1 or #2. I put the code I have under Page_Init into Page_Load instead, but makes no difference either way.
The bottom line is, I want the event handler to know exactly which of the 3 checkboxes is firing the event so that Label1 can reflect that.
[Code]....
I have an ASP.NET web forms site using Master Pages. It is using Unity as my IoC container. I have created an HTTP Module to build up the container using a couple of tutorials i found online. I need the dependency injection to work for User Controls and the only way i was able to get this to work was to hook into the Pages PreInit event as can be seen from the code below.
[code]....
I also have autoeventwireup set to true on the pages and master page. Can anyone shed any light on why the events are not firing? Is my Unity http module causing this to happen by dropping the event wiring? I can get this to work no problem in a basic example with no IoC involved.
I have a table control that I am building dynamically and inside one cell I am placing a LinkButton inside it and wiring up an event. Although the event for the LInkButton never fires.
[Code]....
I have a master page with a menu on it. I have found now two pages out of dozens where for some reason the master page events aren't firing. I've put a break point in there and it never hits it. Is there something that could cause a disconnect between the page and the master page events? Really weird it happens in Chrome and IE but they fire correctly in Safari.
View 12 Replies