How Can Control Focus Be Maintained Across Async Postbacks
Aug 3, 2010I have a page setup like so:
[code]...
I know lastFocused is getting a value and RestoreFocus is running, but whenever it runs the value of lastFocused is null.
Similar Messages:
Web Forms : File Upload Control State Can Be Maintained During Postbacks?
Jul 14, 2010I have a requirement where i need to add file upload contorls dynamically.Intially i have a upload control in my page and button named 'Add fileupload' and another button named 'Upload'.the fileupload control is added dynamically when 'Add fileupload' button is clicked andUpload button is used to upload the files.when i click on 'Add fileupload' button after browsing the file to fileupload control, the new fileuplaod contorl has been adding successfully but the first fileupload control is empty.Can any one please help me how the state of fileuplaod control is maintained.Here is the code
[code]...
Multiple Async Postbacks At The Same Time?
Dec 11, 2010Say I have 2 UpdatePanels on the page and each UpdatePanel has a one server Button each. When I click on the first button and then the second button and look in Firebug, I see that the 2nd async postback is not triggered until the first one completes.
Is this working as expected? My understanding was with AJAX postbacks, the event handlers for the buttons trigger simultaneously.
How To Handle Errors During Async Postbacks
Jan 5, 2010We have an ASP.NET page which uses an update panel for partial page postbacks. On the server side, the postback performs some database work and updates several UI elements. The database code is all contained in several transactions, so the state will still be consistent if an exception is thrown. We're working on some error handling code now, and my first thought was to log the exception thrown, reload the last consistent UI state, and show some sort of modal popup or other ui element with a brief error message for the user (this is an intranet page, so we're automatically notified of the bug, and the users know where to find us.
View 1 RepliesAJAX :: Nested Updatepanels And Async Postbacks?
Mar 23, 2011I'm trying to get something like this to work
[Code]....
What I'm looking for is to disable the submit button if any of the inner updatepanels are in postback mode. I would also like some way to block that particular panel. I guess for the outer updatepanel, updatemode should be set to conditional, and usechildrenastriggers should be false. What's really bugging me is how to block the panel while a postback is occurring.
In all my tests thus far, the outer updatepanel's updateprogress is triggered, which blocks the whole page.
AJAX :: Events Don't Fire In Async Postbacks
Feb 16, 2010So I have a page with an UpdatePanel and some controls in there. When I explicitly type/copy+paste the page's address into the address bar, let VS navigate there for me, or follow a link to the page, all of the AJAX works fine. But if I refresh this page, the JS on the page initiates the async postback, but the appropriate event is never called on the server (although Page_Load is) and the client never recieves the markup sent back by the server. This issue seems to be limited to Firefox 3.6 (Gecko build 1/15/2010)(doesn't happen in IE8). I have yet to try on other versions of Firefox.
View 2 RepliesAjax - Telerik Rad Combo And Async Postbacks In C#?
Jul 26, 2010I have a very typical set up, an ajax update panel is updated when a drop list of offices changes. Each form could have it's own values, for instance each store will have it's own list of employees. Here is where the fun begins. The form can be changed by the drop down (new office) or validated and submitted.
On drop down change, I create a new instance of the same rad combo, bind it to the current data, confirm that the correct data is bound. Then on the return trip I see selected the default user from the previous user. This is a composite control, and firebug shows me that the value for the "text box" that simulates the combo still has the old value. I'm suspecting onViewStateLoaded, but turning viewstate off for the Telerik didn't . II don;t need it anyway, cuz I have to put the selected value in another hidden to make a cross page post on submit.
Async Postbacks Happening When SupportsPartialRendering Is Set To False?
Sep 9, 2010We're getting a confusing error on two of our pages in our ASP.NET application. Both pages originaly had tags to reload the page every so often if a user sat on it for a while, but opted to remove those in favor of some AJAX flavoring. Specifically, we created timer controls on the page and wired the timer's tick event as a trigger for an update panel to reload a portion of the page. The page(s) also have scriptmanagers on them as we don't have one on the master page. This largely works great except we're getting a lot of these errors:
"The page is performing an async postback but the ScriptManager.SupportsPartialRendering property is set to false."
It is my understanding that if the .NET framework detects a browser doesn't support partial rendering it will set the ScriptManager.SupportsPartialRendering value to false and we're NOT overriding this in any fashion. Therefore, the pages shouldn't be by performing async postbacks if that value is false, but based on the error the postbacks are still happening and the page is throwing an exception.
Curiously, the user agent always seems to be GoogleBot or "Mozilla/4.0 (Windows 98; US) Opera 10.00 [en]".
AJAX :: Script To Prevent Multiple Async And Synchronous Postbacks?
Jan 12, 2010I am having a problem with users clicking submitting pages multiple times. What is happening is a user will click a link, if nothing happens in .025 seconds they click another link or menu item, etc. I handle users clicking the back button and the impatient user winds up getting directed to my "Dont click the back button" page even though they dont click the back button.
I need to prevent mutiple submits by disabling all submit controls on my pages. I dont have a single submit button, i have pages with menus, gridviews, yada yada that all need to get turned off.
I have pages that use update panels and pages that dont. All my pages inherit from a BasePage class. I would like to solve this problem by implementing the solution in my BasePage class.
I did a little research and found this little script that works for synchronous postbacks:
[Code]....
AJAX :: Cannot Select Object In Update Panel After A Number Of Async PostBacks
Jan 9, 2011I am trying to create a simple web application that uses a barcode scanner to read the barcode and then insert the information into a database. I have been able to get the barcode scanner to read the barcode and place the information into a textbox.
Then using javascript when the enter key is triggered on the scanner it then clicks the button to do a AsyncPostBack on the updatepanel then using scriptManager.RegisterStartupScript I then focus on the text box and then select the text in it ready for a new barcode to be entered.
The problem that I am having is that I can get it to post back 26 times then it will go to error (with no information). If I then add additional controls to the page I can only get it to post back 10 times. Below is my code... I have been pulling my hair out for the last two days.
[Code]....
[Code]....
[Code]....
How To Add The Script Manager And Async Control To The Page
Nov 8, 2010Just discovered AJAX and the AsyncFileUpload control.I added the script manager and async control to the page, browsed and selected a file but I have no idea where the control stores the image.I went to the AJAX site and tutorials are missing!
View 4 Replies.net : Exclude Control In Updatepanel From Doing Async Postback
Dec 8, 2010I have placed a user control inside update panel after doing asynchronous postback of page associated js file of that user control is not working so that is there any method to exclude a control from updatepanel in another word i don't want to post that user control.
<asp:UpdatePanel ID="upPnlAnswerList" runat="server">
<ContentTemplate>
// another code that required to placed inside updatepanel
<div id="miancontainer" class="containerr"
<klmsuc:Share ID="shareUserControl" runat="server" />
[code]...
AJAX :: How To Use Async File Upload Control In Vs 2010
Feb 26, 2011i am using vs 2010
i want to use AsyncFileUpload Control in my web application
i choosen nor web application template in vs 2010
and i added reference to the ajax tool kit dll
and when i choose any file from async file upload control i got the exception unhandled exception..
JavaScript - Input Hidden Control Does Not Keep Value Between Postbacks?
Nov 25, 2010I'm making an webpage using ASP.NET MVC.
I have the following input hidden definied:
<%=Html.Hidden("inputHiddenSelectedMenuId") %>
And i set its value in this js function:
function SetSelectedMenu(id) {
$('#inputHiddenSelectedMenuId').val(id);
}
After a make a postback in the js init function i want to use the value set in the input hidden but the value is string empty.
[code]....
How To Save Value Across Postbacks For A Composite Control Without Using Viewstate
Oct 29, 2010I have a composite control that has a couple of private fields that reference values in the cache and these private fields are called during the constructor method. Since a string key is used to identify the value in the cache, I must have a way of storing that string key in such a way that it is available at the time the control is instantiated, and I have to be able to reference it on postbacks without it changing.
In addition, this key is generated the first time the control is loaded, but it should not be changed again after that first time.
How can I accomplish this?
I have already tried saving it to viewstate, but that doesn't work because viewstate is not yet available at the time the control is instantiated.
I have tried using a private field and then checking against Page.IsPostback in the constructor and if it isn't postback, I assign a value to the private field, but on subsequent postbacks it looses it's value, and I can't reassign it in the Page.IsPostBack again because it is an autogenerated GUID.
State Management :: Session Is Not Maintained In IE?
Aug 27, 2010After hosting my web application in the production server, I am getting null object reference for all session objects in IE (it is working good in all other browsers).
View 2 RepliesState Management :: Session Not Maintained In IE8?
Jan 20, 2011we have faced a problem accessing an ASP application with the IE 8.One of our customer updated his browser version from IE6 to IE8 and browed an ASP application. while browsing the asp pages, the session was broken and redirected to the login page. This problem we are facing only in IE8 not in IE6.Can anyone guide us to resolve this problem.
View 13 RepliesState Management :: Viewstate Not Being Persisted Across Postbacks On Web User Control?
Mar 5, 20101) I found that my viewstate was not being persisted across postbacks for web user controls. I ensured that the Enable Viewstate property was set to true (of the page)
2) The Viewstate isnt being persisted on the 1st postback.
3) However, it is being persisted from the 2nd postback onwards.
I stepped through the code to ensure that the Viewstate had the 2 keys that I was adding on page load. However, on the 1st postback, the viewstate is empty. Everything is ok from the 2nd postback onwards.
[Code]....
Postbacks And Validators - Get The Parent Control (which Are All Consistently Panels) Using JavaScript?
Feb 18, 2010I'm using the built-in ASP validators on a few form elements. They work fine - if I click the submit button (a Button), validation occurs without postback and errors are displayed in a ValidationSummary. When that occurs, I also want to call a method in codebehind which changes the CSS of elements, switching their background color to red to reflect errors. I've tried to call this method using both OnClick and OnClientClick in the submit Button, but neither parameter seems to fire the method - client-side validation always takes priority, and a postback never occurs. Can anyone enlighten me?
EDIT #1 Using orandovs link worked alright for changing the element itself, but how about its parent? For example, in C# I'm doing:
foreach (BaseValidator validator in Page.Validators)
{
Panel panel = validator.Parent as Panel;
if (!validator.IsValid)
panel.CssClass = "error";
else
panel.CssClass = "normal";
}
Is there a way to get the parent control (which are all consistently Panels, so I know CssClass will exist) using JavaScript? Something like: $("#" + Page_Validators[i].controltovalidate.parent).CssClass("error");
Deployment Process For Site Maintained By 2 Companies?
Jun 16, 2010I work for an agency that has been responsible for maintaining a client's .net 3.5 website for a number of years along with another agency. Work is farmed out by the client to both agencies on a pretty much ad-hoc basis.
The site is quite old and has a structure and deployment process to match. The site is setup that developers have local copies of the sites. There is a staging environment, where client feedback and approval happens, followed by the live environment. There are a number of scenarios where work from one agency will be on the staging environment awaiting approval, and changes from the other agency need to go through staging, approval and deployed to live without the original changes being affected. Most of the time we get away with it but it's far from ideal as not all conflicts can be resolved.
Up until recently we had still been on Sourcesafe but have moved over to Subversion and are running into many more scenarios where work is overwritten. This obviously isn't a fault with subversion, rather that the locking of projects and files in Sourcesafe served as a good indicator to developers from both agencies that someone was working on that project or file. The process previously was that you checked out a file from sourcesafe and kept it checked out until changes went live (acknowledge that this is a rubbish process hence the desire to move away from sourcesafe and such a model)
The trouble is that even though we know that the way we do it now is bad, I'm at a bit of a loss as to how to restructure the overall site and deployment process to make it "better". Some ideas we've pondered are:
Separate dev, test and live branches in subversion so we need to commit and build the appropriate branch before deploying (not really sure how to make that work)Single repository for both agencies but a separate staging environment for each. Staging environment could then reflect the changes assigned to each agencyA separate instance of the staging site for each branch
AJAX :: Determine If User Control Is Contained By The Update Panel That Triggered Async Postback?
Sep 16, 2010Does anyone know a simple way to determine if a user control is contained in an update panel that was triggered for async postback?
At the moment, the only pseudo logic for this I can think of is?
'Loop through the update panel controls on the page and find the one that is involved in the postback (isInPartialRendering)
'Try to find the user control as a child of the update panel
Remove Session(Maintained Using Cookies) If User Is Idle For 15 Minutes?
Apr 4, 2011I am using "cookies" to maintain session in my asp.net azure application.
What I want is that when a user logs in to my website and remains idle for 15 minutes it should automatically log them out and redirect them to the login page.
How can I achieve this?
AJAX :: How Not To Load Files On Server In Async File Upload Control When Client Side Validation Fails
Nov 15, 2010I have a async file upload control and I am doing client side validation for Image."OnClientuploadstarted" I am doing the client side validation.My validation is working fine but my problem is that the file upload control text box goes green (i.e file is loaded on the server) even if the validation fails which is I dont want.What I want is when the client side validation fails the file does not gets loaded on the server and the Async file upload textbox does not goes green.I have goggled but have not found a suitable solution.
View 4 RepliesWeb Forms :: Menu Like Site In Which State Is Maintained On Click Of That Link Page?
Apr 7, 2010i am looking for the menu like asp.net site in which state is maintained on click of that link page.as if i am clicking on forums tab its showing forums tab selected.
View 3 RepliesFocus On The User Control In C#?
Feb 24, 2010I have a user control(error control) in a master page. by default the user control is hidden(visible false)
on click of a submit button i am showing the error control.Now on post back I want to bring focus to this control.I am writing the java script in register Startup script as following:
ScriptManager.RegisterStartupScript(Page, Page.GetType(), "Scroll", "window.scrollTo(0, 0)", true);
on postback page goes up shows this control and then comes back to its previous scroll position.