I need to have a timer to count down a multiple-paged online quiz. The timer countdown should decrement consecutively on each following page. It is tricky to use javascript to maintain the timer value across multiple pages through sequences of postbacks. So, I have been searching a server-side solution and found this:
http://forums.asp.net/p/1621352/4161304.aspx (see the response by Wenchao Zeng - MSFT, the 4th post in that thread).
I created a small web application to test it out and it works great. But when I put the code into a header user control (Header.ascx) in my quiz application, the Timer control's OnTick event never fires. I put a break point in the first line of Timer1_Click, but the debugger of visual studio never gets there.
I tried this:
[Code]....
The code behind is the same (except maybe UI control names) as the one we see at the thread I referred to above. But Timer1_Click never gets executed (and hence my countdown doesn't get displayed). The CountDownTimer class works just fine because I can see from the debugger that the time value is decreasing like I want.
I have an ASPX page with several update panels. They all have their UpdateMode="Conditional".
Some panels are refreshed when the user clicks a button and other are refreshed regularly, with a timer.
The panel refreshed with a timer launches a database query and many validations on the data. Then display the result in a panel when errors have been found.
That all works fine except when the validation has to delete files on the disk. (.txt, .jpg, etc it depends). In that case, after the validation is made, I am always kicked out of my website because of the error (Thread was being aborted). So I loose all my session variables which means I am not logged off.
Anybody had that kind of problem ? Is it normal that deleting files AND directories on the server make me loose my session? Is there a way to prevent that ?
i am trying to write a global.asax to send an email notification to auction winners, using visual studio 2008 and sql express. so far i have written this using tutorials etc but i am getting errors to do with finding the database. i am also wondering if my global.asax page is written correctly in general,
ClickQuickPick() is the code I will eventually run, but I put in the Alert for testing.
The issue is that when the popup extender opens, and I click an item, I get the alert once. If I click another choice I get the alert twice. If I click another choice I get the alert three times, etc.
What is triggering the event to repeat, and how do I stop it?
I have an update panel that has a timer set as the AsyncPostBackTrigger.In this Update Panel I have a repeater and in the repeater I have a few buttons which have on click events.The on click of these buttons does not appear to fire until the timer has tickedI have tried debugging and this is what seems to be happening, either way it takes ages for the button click to actually fire.
VS2010 ( Vb.net ).I have a masterpage that contains a gridview, giving stats and information on client files sent to us. This gridview is updated by means of a timer control every 10 seconds. In my grid I have an image field, to display either a tick .. if everything is ok or a cross for any problems.When the timer control timer event forces a gridview databind every 10 seconds.When the page first loads, i get the default red Cross in the gridview imagefield, however when the timer loops forces a 'databind' I lose the redCross and it is replaced with the default image control ( as if no url is set ) . Then I get a server 404 error.I am using the OnDataBound event to fire my vb sub. I have commented out evertything just to get a solid starting point but im still getting errors.
I am using ajax timer outside update panel Timer_tick event fired twice after every 5 secondsMy Issue is why it fires twice after 5 secondsI know the interval its my setting like (interval=5000)but why it fires twice together thats why my application get hanged???
i have three textboxes in a page and one datagird and 1 timer control, i have 2 update panels.
i placed (all textboxes) in one update panel and i placed (data gird and timer control) in an other update panel, because i want to reset or clear all fields when cancel button is clicked so that update panel should be updated,and where timer control tick event is fired i rebind the gird or refresh the gird, i have done this and it works properly but problem is that when i am going to write some text in any textbox or i want to focus on any text box it should lost focus when timer control tick event is fired so how can i maintain focus, or even how can i get focus of current control and after firing of timer control tick event i should reassing focus of such control
I'm searching for an example with an client timer that ticks synchronous with an server timer. Also there must be a button on the client side which can reset the server timer to an default value, and with this it also resets the client timer ofcourse. I tried it myself but it seems that there is some postback delay which makes it impossible for me to make it atleast look like it goes synchronous.
I hope somebody got an example for me, the button part is really important because by pressing that button the delay comes.
I have a textbox which is read only and there is a calendar besides the textbox. When the user selects the date in the calendar pop up, the text in the textbox is populated but it doesn't trigger the text change event. trigger an event when the text is changed on the textbox?
I have TreeView on a Sharepoint aspx page. The tree is populated dynamically using a Sharepoint list containing a folder-stucture. I would like to handle Select-actions but I am not able to.. the SelectedNodeChanged event only seems to occur when I select the outer-most nodes. Minimal example code for the UserControl where the TreeView is located is found below.
Can i know the code written in C# to get a current time when a button event is triggered in ASP.NET web application project and time retreived is to saved in SQL database
I had an MVC 1.0 web application that was in VS 2008; I just upgraded the project to VS 2010 which automatically upgraded MVC to 2.0. I have a bunch of viewpages have codebehind files that were manually added. The project worked fine before the upgrade, but now the onclick even't don't get triggered. I.e. I have an asp:button with an onclick event that points to a method in the codebehind. When you click the button, the onclick event doesn't get triggered. In fact, when you look at the Page variable, IsPostBack is false.
This is really bizarre and I'm wondering if anyone know what happened and how to fix it. I'm thinking it has something to do with the changes in MVC 2.0; but I'm not sure. (deleting the codebehinds and moving that to the controller is not really an option since there is so many pages, moving back to vs 2008 is a last resort as I want to make use of some of the VS 2010 features like performance testing.)
I have a problem with the ASP FileUpload control. It occurs in Safari and on websites where anonymous authentication is disabled and windows authentication is enabled.
When I select a file in the upload-control and then press an ASP-button the serverside event for the button is not triggered and PostBack is false.
Steps to reproduce the error:
1. Create a page with a file upload and a button. Print a message in the page's load event so you can see that if postback is true or false
2. Open IIS-manager and Add a new application that points to the folder where the page is
3. Disable Anonymous Authentication, ASP.NET Impersonation and Forms Authentication for the application
7. Enable Windows Authentication for the application
8. Browse to the page with Safari
9. Select a file with the upload control
10. Press Ok. Postback is false
If you then enable anonymous authentication on the web application and restart the browser postback works as expected.
My forst post here + I am new to Asp.Net as well. 2nd my apologies if this question has been asked before.
Here is my problem. I am given some really abstract ASP.net pages, where I have to make a change. My change involves adding some links and on each link I have a function which is triggered when link is clicked on. This function validates some information in the form and then submits this form. This same form contains mulitple list boxes, all of them has AutoPostBack=true. The problem is when I select an item from listbox the form is submitted as I can print all the form properies on the page(all fields with their names and values) however, when I click on link and call the same forms submit(); method I dont see that happening. none of the form fields are printed out.
Now once I click on listbox and select an item after that as long as that item is selected, I can click on all links and they all call the submit() method of the form and it produces required resutls. I am really baffled as this doesnt seem correct as far as simple html is concerend.
I have a checkbox in gridview. I have a onclick event in which i am checking if there are more than one record selected in the gridview, i need to select only one and de-select other checkboxes.
This is my aspx code:
[Code]....
This is my checkedchanged code:
[Code]....
I am not sure why the check change is not getting trigerred. And, is this code correct for selecting only one checkbox
What i did.........Created User Control like One.ascx with one button
<%@ Control Language="C#" AutoEventWireup="false" CodeFile="one.ascx.cs" Inherits="one" %> <asp:Label ID="Label1" runat="server" Text="Hello, this is My First User Control dynamically loaded :)"> </asp:Label><asp:Button ID="btnShow" runat="server" Text="Show" OnClick="btnShow_Click" /> On Code behind public void btnShow_Click(object sender, EventArgs e) {
[Code] .....
Fail to redirect user to google.com by clicking button which written in .ascx file.
I have an ASP.NET application running on multiple IIS6 web servers, with a SQL Server 2005 database back-end.
I need to:
monitor the database for the completion of an external job event, and then have exactly one web application instance submit some information to a web service For (1) it seems like a SqlDependency would be the best approach (or just plain old polling). Each web application instance would register such a dependency when it starts up. (I don't want to configure a 'master' instance because the failure of that instance would mean the task doesn't proceed, even if other instances are available. Thus my design is to ensure that if there is an instance available to do the work, then the work ought to proceed.)
For (2) I have been thinking of having some sort of flag in the database that the web application instances try to update once they receive the SqlDependency notification in (1), along the following line (greatly simplified):
UPDATE StatusTable SET TaskStatus = 1 WHERE TaskStatus = 0
SELECT @@ROWCOUNT
that only one application instance would have been able to update the TaskStatus, and thus only one instance would have a @@ROWCOUNT > 0. This would then be the instance 'elected' to submit the information to the web service.
