Forms Data Controls :: Timer Control Timer Event Forces A Gridview Databind Every 10 Seconds?
Nov 25, 2010
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 trying to get my head around the ASP timer control. What I am trying to achieve is to get a page to reload every 60 seconds but change the url querystring everytime between 3 values
i.e. scroll through server/page.aspx?value=1 server/page.aspx?value=2 server/page.aspx?value=3
how I have though to do this is to use ASP code to grab the querystring value, and then create the next url. But I am having trouble passing that newly created url to a refresh control. im guessing HTML meta refresh is out of the question as I am using a variable. So from what I can see my option is to use the ASP timer control to count down (after the page has loaded) and after 60seconds load the next url.
I've run into a problem with one of my web sites and I am having trouble figuring out the problem and a good solution. This is my scenario: I have a user control that displays a slideshow with images and some text that changes every fifteen seconds. To do this, I have an update panel that contains a timer control with an interval of 15000. It calls a method called slideshowTimer_Tick in the codebehind. The web page that contains this user control is a relatively simple page; no update panels or timers, just divs.
The problem I have is that if I have two of these user controls on the page, the tick event only fires for the first control. It never fires for the second control, although the control is full initialized otherwise.
I m facing problem updating a method which shows the count on master page. That method is bind to treeview control.Whenever a data is saved count is incremented to one. but method gets refreshed only when there is a postback. I want it to be updated after every few seconds or whenver there is data saved. there is pretty gud solution with custom ajax that is with json. But that is not possible with exiting solution.i have to redesign the complete treeview structure in html. And with timer control of ajax whole page gets refreshed.
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 timer control on my gridview that refreshes it at a 3 minute interval, but when a user is updating the gridview it will mess us the update and then they have to start over again. How can i set some kind of focus event on the gridview to shut off the timer update that refreshes the gridview.
I've a GridView bound to an object data source which gets data from a remote server. The GridView is inside an AJAX UpdatePanel. For each GridView row, I have a status data item for a person's status(like busy, free, etc.) and I need to show a running timer since a person has been in the current status. Different persons can be in different status at different times and so running timer for each person needs to be different and should be reset when a person changes status. Is it possible to show such a running timer for a cell in each row of a GridView and manipulate it differently i.e. start, stop and reset each instance individually?
I have a page and on button click event, we executing the stored procedure (calculation process) .
It has to process for the large data, so it will get more time to execute.
at the end of the SP i am executing the another SP which is also process for large data.
so 2 SP's running on the button click. when i click the button it taking too much time for executing and return timeout error.
if the record is less in the table then getting result properly. now i want to split the event to execute the 2 SP's saparetely.
but the user will click the button at one time only. at that time i want to execute the SP1 and respond to the user back, Show some processing message to the user and automatically call the SP2 in the same event.
how to do this in c#.
I can't change the stored procedure. because it has to process for all the reocrds. so, in backend not possible to fine tune.
I am using a System timer at the host server to determine when to redirect a client to a new URL. I had assumed that a "Response.Redirect" instruction in the timer tick event handler code would cause this to happen as it does in any client control event. Unfortunately, I get an error message that states "Response is not available in this context". What else can I do to cause the client to redirect to another URL?
There is a gridview in my website pulling data from sqlserver2005 . Now i want to update my website after every 5 min so that it can pull fresh data from sql. I know the basic idea that it can be done by using timer. But i don't know how to implement it?
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 am using .net 3.5 and I make Windows Service Where my windows service is starting properly and stopping also properly. And I put timer control in that in which interval 1000. But the event is not getting raise what can be the problem OnStart I am makingit timer1.enabled=true and Onstop I am making timer1. enabled =false for debugging purpose I am writing Log Entry at beginning of timer_tick event.
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:
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.
Here upon loading the page there will be 4 panels having their own timer controls (having interval 1000) for incrementing a variable "a". But the problem is that, as I have used static variable that's why all the timer's are sharing the variable "a" and creating a problem like each panel's label showing a value incremented by 4 after every second. Can any body solve this problem..
i want to know how to apply timer control on asp.net web pages.in my web application i m having assessment pages, where i am retrieving question and answer from database.everything is working fine but i want some kind of restrictions, like Assessment Time(20 Minute) so user can attempt question for specified time only.there should be a time limit.
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