I have a method which must be run every 5minutes in order to show latest data in gridview.
I was experimenting with System.Timers.Timer and the following is my code:
[code]...
the problem is that after 5minutes it is not going to t_Elapsed. Note this should keep being done at all times not just for once.
I'm building a website in ASP.NET with C# code behind files, I'll be using the site on shared hosting due to price, and one of my aims was to have a stored procedure scheduled to run every 1 hour in MySQL and update my database.
Unforunately security arrangements on shared hosting means that users cannot schedule stored procedures, so I decided to tackle the problem another way.
I created a timer in my website inside its own class file in the App_Code folder, it basically starts a timer and then the time elapsed event connects to my database and calls the stored procedure. I then built an admin page that allows me to see the status of this thread (started/stopped) and allows me to start/stop and restart it.
It's installed on my test site that I run from my home PC using Win7 and IIS, and it works beautifully, I can stop start the service and watch the database tick up when it's running...
HOWEVER...it only seems to run for 20 minutes before it stops, I thought maybe it was the garbage collection killing it since that's mentioned in some timer examples but I've added a GC.KeepAlive(Timer) and that's not . I'm really stumped as to what is stopping the timer, it's functionality is dead on the money and how I want it, but it just stops, always after almost exactly 20 minutes.
[Code]....
how to set time for particular questions.
eg: 2 min.
if the user not click the answer for particular question, it should automatically went to next question. (online exam text).
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?
View 5 RepliesSo we have three 2008 R2 Servers where two are configured to be web servers (IIS 7.5), and the third a session state server. I have set the SessionState and MachineKey settings in the applications web.config. After I restart the two web servers I can log into one server, then change the IP address to the other server, and I am still logged in. Success.
I can typically log in/out with any user account I want, change the ip address back and forth, and all is well until some random time between 30-60 minutes when I log in to one server, change the IP address, and the new server asks for credentials.
This is the sessionState setting in both web.configs:
<sessionState mode="StateServer" stateConnectionString="tcpip=xxx.xxx.xxx.xxx:42424" cookieless="false" timeout="30"/>
The application resides under the default web site, and uses the default application pool. I am using forms authentication with a timeout of 20 minutes. I am not receiving any error events on any of the three servers when this happens, and restarting the two web servers fixes the problem for a while. The two web servers are not clustered per-se, but will be served round-robin via a network device.
I want to redirect the user after 2 mins if there is inactivity for 2 mins. I am not using ASP.NEt membership. And I dont want to use Sessiontimeout for this. Session timeout will logout the user even if he is working on the system. My objective is like screensaver process.
If there is no action for the specified time, the screensaver runs. Similarly, I want to redirect the user to login page.
note that i have already handled it with the following javascript:
[Code]....
Here what my problem is,
the user is working on the site...ok.. he want to see someother site.he browse someother site and works on....or even he can do some other work in his system...but he is active in his system... What this script does is, it automatically logout the user and redirect him to login page. But it should not do while he is active...IT SHOULD REDIRECT IF HE IS NOT ACTIVE REALLY (Similar to Screensaver process)
Is it possible ?
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.
View 2 RepliesWhen a new item is inserted I want to show a message like "Successful" for 3 seconds and then redirect to main page. For that purpose I used timer control. It works fine in IE but not in firefox. Below is the tick method:
protected void UpdateTimer_Tick(object sender, EventArgs e)
{
UpdateTimer.Enabled = false;
lbl_Result.Visible = false;
if (lbl_Result.CssClass == "successMessage")
{
lbl_Result.CssClass == "failureMessage"
Response.Redirect("~/Admin/ManageSportCategories.aspx");
}
}
In firefox, it continuously refresh pages, timer never gets disabled. What should I do?
We have a Page Method on a web page using ASP .Net. We tried to put in a trace statement using both System.Diagnostics and System.Diagnostics.Debug. In Visual Studio 2008, the break point is not even hit for the line, but other break points on other lines are hit.There is no output from either method that we can see.
There is also a Global.asax error catcher that works fine in other cases, but in the Page Method is not being catched.why a Page Method and System.Diagnostics do not play well together?
I have an Ajax timer that has an interval of 1 second and an update panel on my page. If I leave the page open and never close or refresh I notice that after 6 to 8 hours the timer stops firing. No error messages.......everything just stops. If I refresh the page everything starts working again. Are there any issues I am not aware of when running a page for a long time using the Ajax timer?
View 2 RepliesWhen i use timer control in my website. then the ajax water mark blinking.
View 1 RepliesVS2010 ( 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.
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i have some timers on my page, i don't know how many or how they are named. so i tried to find them by the type, but it's always undefined!?
View 5 RepliesI'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.
how to use 4 dynamically created timers on a single page for incrementing 4 different variables(int).
View 3 RepliesPinging back to a webservice in ajax from the client keeps the user's session alive, I don't want this to happen. More extensive summary For a website we're developing, we need the client to ping back (in js) to a webservice (ASMX) on the server (IIS7.5). This happens to let the server know that the user is still on the site, and hasn't browsed away to another site. This is as our customer wants to let users lock records, but if they browse away to other sites, then let other people take over those locked records. Perhaps the distinction between the client being on the site but inactive and on another site seems unimportant, but that's kinda irrelevant, I don't get to write the UI spec, I just have to make it work.
My problem is this, the ping stops the user from being timed out on the server through the standard forms authentication timeout mechanism. Not surprising as there is that 30 second ping in the background keeping the session alive. Even though we want to know if the user is still on the site, we want the normal forms authentication timeout mechanism to be honoured. I thought I might be able to fix this by removing the ASP.NET_SessionId and .ASPXAUTH cookies in the XMLHttpRequest that is the server ping, but I can't figure out how to do this. This is how my web service & method are defined:
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[ScriptService]
public class PingWS : WebService
{
[WebMethod]
public void SessionActive(string sessionID)
{
// does stuff here
}
This is how I'm calling it in js (request is over HTTPS, :
$.ajax({
type: "POST",
url: "PingWS.asmx/SessionActive",
data: 'sessionID=' + aspSessionID + '}',
beforeSend: function (xhr) {
xhr.setRequestHeader('Cookie', '');
xhr.setRequestHeader('Cookie', 'ASP.NET_SessionId=aaa; .ASPXAUTH=bbb;');
},
dataType: "json"
});
I was trying with the setRequestHeader, but that just appends to the header rather than overwrites the header, and IIS is happy to ignore that junk I added. I'm thinking maybe I should be trying to do this at the server end, someone take PingWS.asmx out of the loop so that it doesn't keep the session active, but I'm not sure how to do this. Although the title of the question is focused on clearing the cookie in the header, I'd be super happy if anyone points out that I'm being really stupid and there is actually a much better way of trying to do what I'm doing.
I'm thinking at this stage maybe I need to add something to the webmethod that says how long this particular page has been inactive, and use that knowledge to timeout manually. That actually sounds pretty easy, so I think I'll do that for now. I'm still convinced that there must be an easy way to do what I originally wanted to do though. Update I'm thinking I'm pretty screwed in terms of cookie manipulation here as both the .ASPXAUTH and ASP.NETSessionId cookie are HttpOnly, which means the browser takes them out of your hands, you can't access them via the document.cookies object. So I would say that leaves me with:
Updating my SessionAlive webmethod to track each request so I can tell how long the user has been sitting idle on a page and timeout if needs be Marking the .asmx page somehow on the server end so that it's taken out of the normal authentication/session tracking flow I know how to do 1. so I'll start there but 2. seems much cleaner to me.
as all we know that we can create very simple chat using ajax timer & web service , it runs well for few users .
i want to leaverage same idea for site where 5000+ users will be there in chat room , messages are stored in queue hold in memory * dispatched as user request that is through java script timers calling page method or service ,
how well it will perform ? i know GTalk implements XMPP protocol(jabber) for the web chat
seems it will be difficult to got XMPP way ?
The following is an edited version Let me describe what I have observed and I hope some Ajax guru can shed some light on this. The master page has a timer (Timer1) and a content page also has a timer (Timer2). When Timer1's interval is shorter than Timer2, Timer1 works and Timer2 does not (i.e. Timer1's Tick handler is called periodically, but Timer2's tick handler is never called). If Timer2's inerval is shorter, it seems Timer1's handler is invoked by Timer2(i.e. Timer1's interval appears to be shortened to exactly the same as Timer2). Both of these timer controls are in their separate UpdatePanels.
View 2 Replies[Code]....
I have tried different ways. ... How do I test my integer column for DBNull?
I tried
If IsDBNull(Advlnk.RMTest)
Then
Response.Write(
"this is null")
and this doesn't work either.
I have developed a ASP.NET C# web page which connects to remote conmputer command prompt using PSEXEC.exe and executes some command where the output of the command will get copied to the page. It works fine in the VS 2005 IDE.
If the page is accessed via IIS from IE, the task PSEXEC.EXE appears in task manager of the server with the system account privilege after the method is triggered but nothing happens.
find my present settings in IIS and others:
1. APP Pool Identity to Local System (Predefined) and also to a configurable admin account.
2. <processModel userName="SYSTEM" password="AutoGenerate" /> in Machine.Config file
Also I've tried impersonasation in web.config file to an admin account.
Code Is:
[Code]....
public class foo : System.Web.UI.Control
{
public foo()
{
var a = new HyperLink(){ Text="Test", NavigateUrl="~/abc.aspx"};
this.Controls.Add(a);
}
}
The above code works properly, and when added to a page will successfully identify the tilde / ~ symbol and convert the url into a relative url.
However, when I change the derivation of the class to System.Web.UI.WebControl it does absolutely nothing, and leaves the tilde / ~ intact.
I had a look at System.Web.UI.Control which implements the IUrlResolutionService interface, but still can't seem to get System.Web.UI.WebControl to resolve urls.
I have installed VS2008 on my development machine have winxp sp2 OS.i have created one aspx page where i have placed one button. On click of that button i want to open osk.exe(on screen keyboard). i an using following code
System.Diagnostics.Process.Start("osk.exe")i works fine there.Now for testing i deployed that application to testing server having Win7 OS and IIS7.0. It is not working there.
I am using System.Net.Mail in C#.net website. Basically, I use this to send email alerts to users when some action has occurred.
The problem is, when some PC's are used to trigger an email, nothing happens. I have 2 PC's in my office, and when I do the action on one of them, it works, but not on the other. Why is that?
Also, when an action is triggered by the login page (email reports), it works everywhere, but not on other pages.
I thought C# was server-side code? Shouldn't everything work or not work based on what the server has installed?
after creating a xsd dataset in one machine when i try to use the another in a application in another system though i can use it for fetching records & all i am not able to confidure it or preview data.i already have the connectin string in web config.what changes needs to be done so that the dataset from system 1 can work in ssytem2
View 1 RepliesIn a page (not default) I have:
Protected
Sub Page_Load(ByVal sender
As
Object,
ByVal e
As System.EventArgs)
Handles
Me.Load
Try
loginRep = BusinessLogic.SR.GetUserName("99999")
System.Web.HttpContext.Current.Items.Clear()
System.Web.HttpContext.Current.Items.Add("RepId",loginRep)
I don't any errors and when in the run in the immediate window:
? System.Web.HttpContext.Current.items("RepId") in the immediate window on THAT page I get the OBJECT.
Then I have a hyperlink with navigateurl to the next page "~/ActCnt.aspx"
On that page, ActCnt.aspx, when in the code I have:
Protected
Sub Page_Load(ByVal sender
As
Object,
ByVal e
As System.EventArgs)
Handles
Me.LoadIf
Not Page.IsPostBack
Then
Dim loginRep
As BusinessLogic.SalesRep = System.Web.HttpContext.Current.Items("RepId")
In the immediate window ? System.Web.HttpContext.Current.Items("RepId") returns a String that is equal to "RepId".
Even if I change it to not be an object, but a string I only get the Name "RepId" of the keypair. I have NEVER gotten the actual value.