Ajax - How To Call A Function Automatically After A Certain Time Has Elapsed
Jan 19, 2011
Let's say I have a Label on my page. In PageLoad() it's Text parameter is set to "This is my first text".
After, for example, 1 minute I want this Label to change it's text parameter to "This is my second text" (completely automatically, without any interaction of a user with this site).
I have a web service in ASP.NET being called by a time-sensitive process. If the web service takes longer than N seconds to run I want to return from the call so the time sensitive operation can continue. Is this possible and if so what is the code for this?
I have 2 fields being displayed in a Gridview, StartTime, EndTime. I want to create a 'Time" column which shows the elapsed time in HH:MM format. (StartTime - EndTime) This was all generated with VS2008, table is pulled from an SQL Query.
How to call a function on run time button click. As I have created a table and a button on run time and want to call a function on its click on code behind page(.cs page). It is in Asp.net with c# my code full details is like
This works.. I can then colour my grid view cells accordingly using the substring function.. the problem is that I have been told that using GETDATE three times is not a good use of resources, is it possible to use the Datediff function to get the same result?
I am want to develop a quiz site using MVC 2. A single page will display only one question. The examinee will select or type the answer and press Next button to proceed.
My business logic on the server side will record the time elapsed between two consecutive page requests. This time elapsed must not be tempered by any means to make a reliable diagnostic report.
I am using the System.Timers.Timer class. And I enable when I send a message and disable when I receive the message. How do I calculate how much time has elapsed. I have set the interval as 1 sec
Basically I retransmit data after 1000 sec again if I do not recive an ACK. I retransmit 5 times max until I get a Ack. If I receive and something before 150ms then I stop retrnsmission.
i have simple form which consists of 2 labels and 2 buttons, the first label will display the current time and second label will display the cached time for 2 mins which is absolute..
no w when i click on first button only current time have to get update,, and when i click on second button both current time cached time have to be updated even though the cached time of 2 mins not elapsed also.
We have an ASP.NET web app talking to WCF for data. After resolving a number of service and db level performance issues, we turned to look at the web app itself.
After running a profile while hitting a few common pages, ProcessRequest is at the top of the list as far as elapsed exclusive time (which means time just in that method and any kernel code if I'm not mistaken)
Function Name Elapsed Inclusive Time Elapsed Exclusive Time System.Web.UI.Page.ProcessRequest(class System.Web.HttpContext) 31,573.64 17,915.56
Viewstate sizes are not severe, prob 60k at most for fattest page.
I have to fill a date 00010101 into the text box on page load.But after loading it automatically change to 19010101 Min year is not 0001 How can i input 0001 as year
i have a jquery .click() function that executes an .ajax() method call
[Code]....
when the .ajax() method executes succesfully it calls a javascript function
[Code]....
as you can see i have an .ajax() method inside my javascript function, is this possible? I am creating loop that starts on the finish listener of the soundmanager object. So when I need to make the ajax call to get he next url I need.
I know that I do not want to actually use an Ajax.ActionLink from within a JavaScript function, but for the life of me I cannot figure out how to replicate the behavior. Here is what I have in my MVC 3 RC2 _Layout.cshtml:
[Code]....
I do NOT want to use:
[Code]....
Unless that can be made to populate at runtime, on demand from a script. manually clicking the ""Load Menu" ActionLink works exactly like I want except it requires the user to click the link; I want to do that for them... in this case from the Body onload event.
I have ASP.NET form where i have Implemented Ajax ValidatorCalloutExtender for Validation Purpose. So can i call a JavaScript Function from Ajax ValidatorCalloutExtender for checking Correct Data entered by the User.
I'm having some trouble with making use of some AJAX-properties that are normally accessable after I've initialized a scriptmanager.
ie. This work:
[Code]....
Now, I would like to call the javascript-function 'testFunc()' from my ASP.NET Codebehind-file, and here's my problem. I keep getting "Sys is unidentified".codebehind-stuff: ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "testkey", "testFunc();", true);
Does anyone have good idea how to solve this? Much appreciated. Thanks.
I have a project that uses PageMethods to call functions on the server. The server functions (written in C#) return the values as array of strings, without doing any kind of serialization and in the client side (from Js) the accessing of the return values is by using static variable called arguments. I found that sometimes for some users (cases are not repro) sometimes an exception occured
"WebServiceFailedException the server method 'Foo' returned invalid data. the 'd' property is missing from JSON."
Some searching on google I found that people are serializing the return values using DataContractJsonSerializer class and in js accessing the return value using one of the callback function Example:
function OnRequestComplete(result, userContext, methodName) { var Person = eval('(' + result + ')'); alert(Person.Forename); alert(Person.Surname); }
So is the first technique is correct? or what?
P.S:
the function on the server is defined on the default.aspx.cs file as follows:
[System.Web.Services.WebMethodAttribute(), System.Web.Script.Services.ScriptMethodAttribute()] public static string[] Foo(string s);
from the client side the calling is as follows
PageMethods.Foo("value",OnSuccess);
Also all the users have the same browser version (IE8)
My web app is using a sliderextender to allow the user to change the distance. After the slider handle is moved and the mouse button is release, I would like to call a function to query the results and rebind my datalist.
What I want to do: dispose of a session upon detecting an "OnBeforeUnload" event in the client. I know it doesn't fire 100% of times (90% accuracy works fine for me)
Here I saw how to do it with ajax, this system, however, breaks down with ajax: I can't use it at all.
I am trying to call a web service function within my own ASP.net (code behind) using AJAX on the page.
Once i push the button to execute the JS/AJAX/codebehind - I got an error.
POST http://************/admin/Admin.aspx/getDBInformation 500 (Internal Server Error)
This is my code below that I am currently using:
Code: <WebMethod> _ Public Shared Function getDBInformation() As String loadDBData() Return JsonConvert.SerializeObject(dbInfo, System.Xml.Formatting.Indented) End Function End Class
am getting "Time Out Expired,The Timeout period elapsed prior to obtaining a connecttion from pool".Please suggest suddenly i am getting this error in 10% of the pages.
We are using asp.net ajax 1.1 (and can't upgrade to latest for internal known reasons). We are having a page where we call ScriptService method through ASP.Net ajax and oncallback of result, we bind that result to Html controls on the page. During testing we observed that this whole process is taking too much time. When we profiled using IE8 developer toolbar, we observed that there is one standard function from ASP.net Ajax frameworks' own JS. Function name is function$_validateParameterType and it is the one which takes maximum time amongs others. Is there any way we can reduce the time take by this. Is there any standard practice for such requirements.