In asp.net is it a requirement to rebuild the whole page during every callback? For example my web page is split into three distinct areas and I have an update panel for each area. Lets say I want to update the third area, do I have to bother with any processing of the other two areas?
For example lets say there is a grid view in area two. The update panel in area three callbacks to update its content. Do I have to rebind the grid in area two?
When user cliick on the control before page fully loaded it goes to error page.
Following is the trace.
Execution Error
Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.
[code]....
I have an asp.net page. I'm using a jquery library to open a modal window on link click. Within this modal window I'm loading another page. After i make update within this modal window I need to send a callback to "Parent" page. if I call function from this window I'm getting the error it couldn't find function. Window.opener.functionname also not working.
here is an example of my code
$(function () {
$('#ControlId').click(function (e) {
e.preventDefault();
$.ModalWindow({
bgColor: '#3333cc',
url: 'default.aspx'
});
return false;
});
return false;
});
});
Is there any way how to send a callback?
I have a web forms page with a button that involkes a __doPostBack callback to the page. I would like to invoke this manually - by "manually" I mean from outside the webpage, for example by using wget.
View 3 RepliesI am getting the following error when I leave my web inactive for a while
"Response.Redirect.cannot be called in a Page callback."
I'm storing the user ids in session and during page load I check to see if the user id exists if not then I redirect them to the login page.
I am using devexpress controls, How can I get the redirect to work?
When the page is loading i have the problem, that the Page shakes a little to the right and then to the left. Thatīs maybe because of a scrollbar effect in the browser.
I tried to fix a vertical scrollbar, but it does not work.
Take a look at the site: [URL]
There the pages in progress are available. When you hit the Navigation bar, the Page reload is shaking.
Ive set up a basic client side callback to a WCF service. see sample code below.
when viewing using an http filter attached to the explorer you can see that:
1. service1.svc/js is working fine and return proper java script to the browser
2. serrvice1.svc works and returns a proper json data.
3. call is fine and using alert instead of updating the div info i get the data.
but then after OK on the alert the page is then reloaded from scratch.
[Code].....
I have a following issue (it's only happening in Internet Explorer).
I add callback to a page in the old-fashioned way -> Page.ClientScript.RegisterClientScriptBlock(...)
The scenario is: 1) The default page is being loaded. On Page_OnLoad it assigns a NULL to some session key. Let's call it Control -> Session["Control"] = null;
2) User presses a button and gets redirected to a next page (let's call it NextPage.aspx) using javascript event -> window.location.assign(....) (also tried .href = ... - no help)
3) The NextPage.aspx assigns some value to Session["Control"] on Page_OnLoad
5) User clicks a button on the NextPage.aspx and a callback request is being sent to a server....
TA DA!!! The interesting part:
6) Along with the request to the NextPage.aspx another request is being sent to the default page.
7) The only response is being recieved by a client is a response from the NextPage.aspx BUT since the code on the default page is being executed it puts null to the Session["Control"] which screws all my following scenario. the default page doesn't recognize the request as a callback? so if(IsCallback) {} doesn't help....
I believe it's not a code issue since as I wrote above it works in development environment,but I have no clue what can 'cause it to fail in production and only in IE...
At least what to start to look at... and I have Helicon's ISAPI Rewrite installed on the production server. It doesn't seem to be the cause but who knows....
Correction
if I do not assign window.location and just add a link to the NextPage.aspx and click it manualy after callback ended it still sends extra request to the default page. if I click the link before I initialize callback it works fine without extra request.
I created dynamic the tabpanel of tabcontainer, and the tabpanels change depended on the item which chooses from dropdownlist but the problem is tabcontainer keeping the last tabpanel and create another tabpanel and I couldn't remove them how I can rebulid the tabconatiner each postback
View 2 RepliesI'm working on an ASP.NET MVC web application and I've made my own authentication module, which is session-based (no cookies). The problem is: When I rebuild my application, I'm automatically logged of (session is empty).
Normally this is not a big problem because my application is not 'automatically' rebuilding in a production environment. But I've also made a module that changes the resource-files and after a modification of a resource file, the application seems to rebuild automatically.
So my actual question: Is it possible to 'keep' the session variables/stay logged on after a rebuild?
I have several small web apps that were developed in VS 2005. Included among these are several class libraries used by many of the apps. I've begun to develop in VS 2008. Today I had to add to one of the libraries that was originally generated by VS
2005.
My question, now that I've rebuilt the class library using VS 2008 do I need to rebuild all the small apps that use this library?
Background: We have a production website that is composed of several small webapps. The dlls reside in the bin folder and the .aspx pages in the appropriate folder within the website structure. If I move this changed library dll to the bin folder, are all the pages that used the old library dll going to break? The changes I made to the library class will not cause them to break.
I have a solution containing 4 class library projects and one "web site" project. The web site project contains references to the 3 class library projects, whenever I make changes in any of the class library projects, the only option I see is to rebuild the web site which takes a lot of time. Is there any option that I can only update the dll references and the changes are reflected in the web site project?
View 1 RepliesI have a web application project. I have DLLs that I reference in the project stored in my bin/ folder. Well, whenever I do a rebuild or clean from Visual Studio, it will delete everything in that folder. How do I prevent this from happening?
View 3 RepliesAs I understand it, I should be able to change an aspx file in VS, update in the browser and then see the changes without rebuilding the entire solution. For me thats not the case...
Edit: I use VS 2008, .NET 3.5 and development server. It is a Web Application project and I always need to rebuild to see the changes in the aspx files. I use master pages and aspx controls. I use edit and continue and have no problem updating the code behind files without rebuilding.
I recently purchased the source code of an existing DotNetNuke module in order to make a few modifications. The source of the module contains various .ascx, ascx.resx and .ascx.vb files. as well as a main.dll file. Lets call them:
myfile.ascx
myfile.ascx.resx
myfile.ascx.vb
myfile.dll
I'm using Visual Studio 2008 PRO.
I've made a few changes to "myfile.ascx.vb". When I rebuild "my_module" via Build --> Rebuild my_module, I get confirmation that there are no errors in the Error List. I then upload a fresh copy of "mydll.dll" from the "/obj/release/" folder on my local machine up to the "/bin/" folder on my DotNetNuke site.
The issue that I'm having is that the changes that I made to "myfile.ascx.vb" are not appearing on my DotNetNuke site. Are there additional files that need to uploaded? I've checked timestamps on all of my local files and the only files that are updated after the build is "mydll.dll".
How can we Rebuild solution in vs2008 without visual studio?
View 1 RepliesI was working on a .Net 2.0 application. Late at night I upgraded it to .Net v.4. Then, as SVN was complaining I started to do manual conflict resolution. Even later than that I tried to check in my changes, then hit some conflicts so manually merged changes from the two different .csproj files.
I can't get back to where I was and rolling back to the previous version makes me lose all the code that has been written for it.
So I'm looking for a quick/dirty and reliable way of making sure my application code doesn't get lost?
I have a strange problem with the session. I have global.asax with code in the session_start event. This code calls some code that I have in a helper class. When I first run the project in debug everything is fine. However when I stop debugging and then re-run the project it fails and I have discovered that once the code in the helper class is hit the session is null. If I look in the global.asax session_start code the session is instantiated before it enters the helper class. If I then re-build the project and the re-run it everything works fine again! Why does the session suddenly become null and why does a re-build fix the problem?
View 3 RepliesI've got a solution that contains several projects. There is a main exe project which I'll call MyProj.exe that references several other projects which reference yet other projects in the solution. Additionally a few projects in the solution are not in MyProj's reference chain and aren't regularly built. There is 1 project (a class library project) named Payment which is giving me a particularly hard time. The two of MyProj's references have a project reference to Payment.dll. So the reference heirarchy looks like this:
- MyProj.exe
- Transactions
- Payment
- Accounts
- Payment
When I right click MyProj in the Solution Explorer and choose Build, everything works fine, but when I choose Rebuild, I get the following results:
Payment.dll is deleted but never rebuilt. It doesn't exist in the output directory MyProj.manifest in the output directory doesn't have a reference to Payment.dll. (What is this file? I don't remember normally seeing it in other project's the output directories.) 19 of the project .pdb files are deleted and not rebuilt This is a big problem for me because this is a ClickOnce application and when I'm publishing, Payment.dll isn't getting included in my deployment which is a problem I suspect is closely related.
I'm working on a VS2010 Solution containing an ASP.NET Website Project and 8 c# class libraries. All projects are set to compile under .NET 3.5
When I set a breakpoint somewhere in the class libraries, the debugger breaks correctly and everything is fine. If I then stop debugging, modify code in the class library, and start debugging again (which of course rebuilds the libraries which were modified) the debugger ignores the breakpoints.
Has anyone else experienced anything like this? I'm lost and it's extremely frustrating to not be able to debug after making even a single line change and rebuilding.
Visual Studio 2010 Ultimate Windows 7 Professional 64-bit
When editing a UserControl (.ascx) in my project, it forces a rebuild of the website when requesting the page. This really gets annoying when programming any large project, the build time goes up to 15sec+.
In the last few days I found myself looking at a blank screen more often than programming. This gets frustrating, all the waiting.
I am using ASP.NET Callbacks (that implements the ICallbackEventHandler) and in the handler, I try to set a value of the text box:
txtName.text = "Test";
but this value is not set. Is this a limitation with callback? It appears I cannot do much in a callback handler other than sending back a string to the client side (ofcourse I can access the Session etc)
I have been trying to figure this our for far too long and I cannot get my head around it. Every example I have seen seems to be far more complex that I need.
I have a web service in my project (.asmx). I want to call it very simply from a button on a webpage.
Click
Run service asynchronously
return control back to webpage (web
service running in background)
I have a page in which the Grid View is loaded using ICallbackEventHandler Asyncronously(Callback feature of ASP.Net).The stored procedure to populate the Grid View is time consuming.Once the page is loaded,the Grid View appears on the page after 7-10 secs.The problem is that in the mean while if there is a PostBack from any control (example if a Button is Clicked) on the page,then in that case the Callback isterminated and the Grid View is not loaded.Did any one came across this situation?
View 2 RepliesI am using ASP.NET I would like to implement the listener for the FB de-auth. I get signed_request param from the FB server.
How can I decrypt it using C#?