C# - How To Stop Page Execution From Inside A Web Part
Mar 22, 2011
(I believe that this applies to both normal ASP.NET web parts and SharePoint hosted web parts)
The web part has an 'export' button that renders the output as csv and sets the appropriate headers so its opened in Excel.
Hooking in the buttons click event, clearing the response, adding the appropriate headers and content types is trivial - example
However I've noticed that if this code added to a web part and a debugger attached then if there are multiple instances of this (or any other) web part on the page then neither HTTPApplication.CompleteRequest or Response.End stop the processing/page lifecycle and all the events for all the page controls still fire.
This is wasteful in this example as the other web parts don't need to run - nothing they do will get to the response.
How to stop the execution and redirect to the login page. I tried FormsAuthentication.Signout but seens it doesn't stop the execution and let the code continue.
I'm executing one stored procedure from the '.net' code. Since there is a lot of data, it is taking too much time to execute. Is there any way to stop this execution from the c# code?
In other words, if we execute the query from database itself, there is a option to stop its execution but in the code is it possible?
Why is it that a simple string inside a webpart not showing when the application is run ? Actually my requirement is to use a fusion (usually called as a function) and Visifire chart (usually called as a function from javascript) in web part which i'm not able to consume at all.
Why can I still access files inside a forms authenticated part of my site? Any webpages say that you need to login to view them, but people can still access images by typing in the address bar. I am using forms authentication with my own database, so none of the aspnetdb services like membership roles etc. Is this a bad way to do things because I'm pretty deep into it now and it would be very difficult to change.
Editor-Control stops working when placed inside an ItemTemplate. See the example below. Editor1 is outside the ItemTemplate, Editor2 inside. When I remove the comments of Editor2, both Editors will not render correctly in the browser. Placing Width= and other properties did not result in a working editor-control.
I only have 1 user that cannot see reports. I even did a gotomeeting and we clicked refresh serveral times and we get the Report Execution Session died.
Every other user works on VPN. The rest of the wqeb site also works fine. Does any have some pointers on find a resolution for this user. He is windows authenticated and using a VPN. ( I have 1 user out of at least 50 have worked fine with a report viewer over VPN.
I am trying to add some code that logs to a table the time a page has taken to generate, from the request coming in to the response given back. The easiest way to do this is through our master page as it can add the timings of every page.Where I'm a little unsure, is when to put the start and end timings.Currently, I set the start time in the page.unload and the end time as the last part of the page.load on the master page.The figures coming back seem ok, but I'm not sure if I am picking the earliest and latest possible times to get my timings?
i have developed an ERP in asp.net 3.5. The problem is that when published and as well as during development, the execution speed of page is very slow. I have off the compilation mode in web.config and also get all the data in page load and then filter it using Dataview rowfilter property but i can't get much better speed.
I need to capture the amount of time that ASP.net takes to execute each page request in my application, but I need to exclude any network latency. I am currently capturing render times by using the StopWatch class and starting the stopwatch during the OnInit method of the page lifecycle and stopping it after the Unload method completes. It seems that the Unload method includes the time it takes send the request to the client, thus including any internet/network latency. What is the last possible point I could stop the stopwatch in the Page Life Cycle that would not include the time it takes to send the request to the client. Would it be directly before the Unload event?
Related question: Does ASP.net finish building the response before it starts sending to the client? Or does it start sending asynchronously, while the response is being formed?
I am using ASP.Net 2.0 with IIS 5 currently.
I have this code in a class that all of my pages inherit from:
I tried capturing the execution time at the end of the OnRender method, at the start of the OnUnload method and at the end of the OnUnload method. In all three cases the difference in times was at most 1 millisecond. Even when testing this from a client in Europe to a server in the USA, the times were identical.
i am trying to have a download on my page. I have implemented the code below but code execution stops after the download message pops up, even if i press save or cancel, nothing happens after that.
[Code]....
I have tried it a few times without Response.Clear() and Response.End() but it didn't make any difference to take these off. Is there anyway I can achieve this without having to using an IFrame?
We have several asp.net web applications we've built and we also want to embed them into various sharepoint pages. We need to have them look like standalone applications when viewed in their own pages, but also have them look like they fit within the sharepoint page when embedded. We are doing this currently with IFrames and it works ok, but I'm wondering if there is some sort of proxy web part where we can configure the web part to point to an existing web app and it will proxy the contents through from the web app into the sharepoint page removing the need for an IFrame. Possible?
I have four columns in database. Consider it as a,b,c and d. I'm trying to place a and b column values in TO part and c and d column values in CC part in outlook. a,b,c,d contains six digits numeric values. I just need to place a and b columns values in to and c and d values in cc part on click of a button.
I am writing a web application which consists of a master page (header / menus) which does not change and content pages. When I do something like click on a button it causes a post back which is correct but this redraws the whole screen and becomes annoying because every post back and the whole screen flickers.
When using SPWeb.GetCatalog(SPListTemplateType.WebPartCatalog), it returns an SPList which of course contains a SPListItemCollection of the web parts in the web part gallery. When looping through the items, is there any easy way to get properties of the web parts? Such as AllowClose, CatalogIconImageUrl, etc... I know I can probably accomplish this using the listItem.OpenBinaryStream etc and loading the xml of the .webpart file, but I wondered if there was an easier way to do this.
i have on a page a text box and a button(button1) and another set of text boxes and another button(button2). i have put a requiredfieldvalidator on all the textboxes. what i want to do is that if i click button1, only the first textbox should validate and if i click button2 then only the set of textboxes should validate. right now whether i click button1 or 2 all of the textboxes will validate. i have tried to place the first textbox and button1 in an updatepanel and the set of textboxes and button2 in another updatepanel but still its not working.
I have two copies of the same web part on one web page. When someone clicks the a button one of the web parts, the event, at times, seems to be firing on the web part that they did not click on. I can reproduce it with 100% accuracy. Is that possible? If so, how do I prevent that from happening?
"How to postback the particular part of a page in ASP.Net"?
For Example:
If I am having a page and suppose I have divided it into 2 sections. In the first section I have placed a User Control related to Weather Forecast and in the 2nd section of the web page I have placed a Currency Converter user control.
In this scenario, if the user uses the Currency Converter User Control I don't want the entire page to get postback, I want only that particular section of the page to get postback.
