how to execute a asp.net page asynchronously?
So I am displaying a page to the user, but when an event happen, I need to execute another page, without using ajax, but using C# code.
I am using asp.net webforms.
I need to run the HttpContext.Current.Server.Execute method in my ASP.NET application. This application has a WCF operation that does some processing. Currently, I am to do my processing correctly from within my WCF operation. However, I would like to do this asynchronously.
In an error to attempt this asynchronously, I tried running Server.Execute in the DoWork event handler of a BackgroundWorker. Unfortunately, this throws an error that says
"object reference not set to an instance of an object" The HttpContext element is not null. I checked that. It is some property nested in the HttpContext object that appears to be null. However, I have not been able to identify why this won't work. It happens as soon as I move the processing to the BackgroundWorker thread.
My question is, how can I asynchronously execute the Server.Execute method?
Is there a way to make a controller return something to the user first then execute another method? I have a process that is very time consuming. I'd like to send back a quick JSON response to the user then process.
View 2 RepliesI need to load and execute SSIS or DTS packages ASYNCHRONOUSLY from ASP.NET C# page on click of a button and report the success or failure at the end of the execution and if it fails the details of the exception should be shown to the user. it needs to be asynchronous because job could take a long time to finish. user should also be able to cancel the execution of the package while it is running if he wishes to do so. there is also requirement to execute multiple packages in parallel and track the progress for each of them. is this possible to achieve OR too complicated to do it from ASP.NET?
View 4 RepliesI need to run the HttpContext.Current.Server.Execute method in my ASP.NET application. This application has a WCF operation that does some processing. Currently, I am running a Server.Execute call from within my WCF operation and getting the results I would expect. However, I would like to do this asynchronously.This is where my problem comes in. In an error to run Server.Execute asynchronously, I tried running Server.Execute in the DoWork event handler of a BackgroundWorker. Unfortunately, this throws an error that says
"object reference not set to an instance of an object"
The HttpContext element is not null. I checked that. It is some property nested in the HttpContext object that appears to be null. However, I have not been able to identify why this won't work. It happens as soon as I move the processing to the BackgroundWorker thread. My question is, how can I asynchronously execute the Server.Execute method? Are there options beyond BackgroundWorker that will work?
I have an ASP.NET (3.5) web page which calls a few web methods (SOAP based) using jQuery's .ajax method. The web methods implement 'ScriptMethod' attribute and return JSON data. The web service file (asmx) is local to the same project.
I noticed these web methods execute synchronously on the server which means they run sequentially and affect performance negatively, some methods are waiting, when some of them are slow.
I read this article and I am not sure if I understand that WebMethods which implement Scriptmethod can run synchronously only (they implement IHttpHandler not IHttpAsyncHandler).
If this is true, I might have to change the design. I am looking for other designs, maybe like using WCF, where the browser can call webmethods using JavaScript and the web methods run asynchronously on the server.
I'm developing a Web tool in ASP.NET 2.0 with AJAX . Its working fine in Local Server. When i deployed it in Development Server and executing the Application , I got an error
Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(),
response filters, HttpModules, or server trace is enabled.
Details: Error parsing near ' I didn't use any Response.Write in the Application. How can i solve this issue ? Any body knows the solution for this ?
I have master page
MyMasterPage.aspx and content page MyDefault.aspx.
MyMasterPage.aspx has one input button [value="Menu-1"]. When user click the button, the button will pass value "Menu-1" into
TextBox1Default1 at content page MyDefault.aspx, and then refresh
UpdatePanelDefault1 at content page MyDefault.aspx asynchronously.
My problem is the post back is full post back when refreshing UpdatePanelDefault1. I would like asynchronously post back during refreshing UpdatePanelDefault1. copy the full code MyMasterPage.aspx and MyDefault.aspx below, and then paste / overwrite it into your blank aspx page for testing. I am using VS 2008
Below is full code MyMasterPage.aspx.[Code]....
I'm working on an ASP.net application in which I've multiple web parts in a page. Each web part has its own data source pulling data from them and showing it. When a user tries to load the page I want to load the page instantly and asynchronously render all the web parts with the data.
View 1 RepliesI make an asynchronous call from one web service to another web service deployed on different server? The scenario is that an ASP.NET webforms page will call a web service in an async manner. This particular web service will then make another async call to a second web service deployed on different web server. This this possible to achieve, and what additional steps or code would be necessary to make this happen?
View 1 RepliesI have four repeaters, that are all independent to each other. They all bind via web services on page load and then display the results.
There is a noticeable delay however and I would like to know how to achieve the following if possible.
On page load I want to begin asynchronously binding the repeaters so that as soon as the first one is bound, its result display and then the next starts binding.
I looked at update panels but from what I have read they do not have a page load trigger.
I am a bit confused about these two sequence of events or processes happening in conjunction to each other. Does the page handler executes first or does the somepage.aspx get execute first or do they happen simultaneously?
View 2 RepliesWhen a button/link is clicked, I want this URL to be called followed by the execution of the following statements. The ASP.Net page is in C# btw.
Function A
statement A
call abc.apsx
statement B
abc.aspx is a silent page, doesn't display anything on the page but creates an output.txt file. So when abc.aspx is called, output.txt file is created and Statement B is executed seamlessly.
I'm trying to understand how to execute AJAX animation on an asp button that has to execute code on Postback. In other words, I have button with code behind that needs to be excuted, but at the same time want to be able to have one of animation extenders be applied to it. I understand that I need to use the BeginRequest Event, I'm just not sure how, or which javascript commands to use to call the ajax animation so the postback will still occur.
View 5 RepliesI am looking through a sql stored procedure which I might need to update in the near future. Basically the stored procedure is about 20 lines long. The stored procedure first builds a query
and stores it in a variable named "@Sql". And then for the last two lines of the stored procedure it appears that the big sql statement stored in "@Sql" is executed by using the "EXEC" command. See below. What is confusing though is that the query appears to be exectuted twice? Why was the query written in this way. Don't both lines do the same thing? Why is it being done twice? Could this possibly be a mistake on the
part of the person who wrote the query. Below are the two lines I am talking about?
EXEC sp_executesql @sql
EXEC (@sql)
I am developing a mobile site which has multiple divs. I have validator set up for each different input, but I want to validate only the elements within the 1st div on click "Continue."
In the example, I want to validate First name only within FirstPage.
[code]...
Is there any way to render a normal view of asp.net MVC action onto an old .aspx WebForm using an MVC helper or some other method?
View 3 RepliesI have an MVC page that has a webforms page that it needs to render:
The virtual directory for the webforms page is:
http://mysite/Report/1
File saved:
~/Areas/Accounts/Views/Invoices/Report.aspx?id=1
How do I map this?
I have mapped it to controller:
return Redirect("~/Areas/Accounts/Views/Invoices/Report.aspx?id=1?id=" + id);
But I get an error.
Asp.net page_load function is loading twice.. hence it affects my page performance.
Does anyone know the reason it is loading twice.
No, iam not calling the page load function anywhere...
I'm trying to enumerate through all the Controls of a Page, but all I can find is thePage.FindControl(string) and the .Controls property doesn't has the controls that I have on the page. Anybody knows how to enumerate through all the controls of a web-forms page
View 2 RepliesI have a asp.net webforms page in which I'm using the jqGrid component. The problem is that thickbox is not working on the links inside jqGrid (ajax).
I got this peace of code on Gupta's blog but I don't know how to add it as I'm using the jqGrid component for ASP.NET.
gridComplete: function(){
// ThickBox - this allows any dynamically created links that use thickbox to work!
tb_init('a.thickbox, area.thickbox, input.thickbox');//pass where to apply thickbox
imgLoader = new Image();// preload image
imgLoader.src = tb_pathToImage;}
I have ASP code in asp page. I want to run the the asp code (preferable) from my asp.net page using vb.net or execute the asp page from my asp.net page using vb.net on page load_event.
View 4 RepliesWhat is the best way to call a DLL on a client PC from an ASP page?
I have asp.net page that need to call function in dll installed on client machine because this function access resources related to client. how I can do this?
when i try to do this and load the webforms page, i get this error, even tho the path is correct. what can i do to get past this? i've tried running the aspx page from the root as well. nada.
Server Error in '/' Application.
The resource cannot be found.
Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. review the following URL and make sure that it is spelled correctly.
Requested URL: /Views/Home/FileUploadFrame.aspx
Version Information: Microsoft .NET Framework Version:4.0.30128; ASP.NET Version:4.0.30128.1
I am creating a feature which will allow users to import data of excel sheet to database.First, data will be imported from excel sheet and will be displayed in a tabular format.User performs a mapping porcess for database fields and click Submit button.Then a stored procedure inserts all the data of each row into more than 15 tables.
Above mentioned process might cause an issue if users import more than 1000 records (they are definitely going to do that. Thats why this entire functionality is intended for).Basically, what I would like to do is, Insert all the rows to a single table (Temp table), have a cloumn in a table which will be a flag and initially, will be set to "Pending".Create a page which will be executed when there are less users accessing the system (Specific time),
This page will see if there are records in a temp table with FLAG "Pending". If yes then it will fetch one record from the table and will insert data of first row into all the necessary tables. After first transaction it will wait for some time and will fetch the second record....This will last until the final row of temp table is reached.