AJAX :: Trigger A Loading Screen From Code Behind?
Mar 28, 2011
I have a javascript script that displays an overlay Processing Screen when user submits the form. I have the Javascript onClientClick event. Since this is a form I need to do validation and I dont want the screen to come up while I do the validation. It should only come up once the validation is successful. Validation is done server side. I need to do something when the validation is successful only then the processing screen should come up. Cause once the validation is successful the page is redirected to other page and it takes lot of time until the other page comes up.
However, the expand/collapse animation does not play as when the Expand/CollapseControlID is clicked. It simply appears in the collapsed state. Is it possible to trigger this animation programatically?
I have a web page that I am trying to use modal popup extender with aLink button as trigger (Code Below). When I execute the code and click on the link button (TargetId) the parameter for graying out the page below the popup works but I do not see the ModalPopup panel
I'm building a few webpages in my webapplication which use a webservice.While communicating with the webservice, which can take more than a few seconds, I want to display a loading screen. Something like the jquery dialog, where the background is disabled and a loading image appears in the middel of the webpage.
I have a page that is loading with a lot of excess screen flicker.Or it loads to slow in my opinion. Are there somethings that I should be aware of that might be causing this?
i have a loging page, once i login into my application it is redirecting into main dash borad screen. where i am displaying data from other server. it is taking time to load page..
case 1:- in my dashboard one block i am displaying some simple info like alerts, news, mails count..etc.. that is comming from my local database ( there is no performance issues on that..)
case 2: in the same page (dashboard block) i am showing data, it is comming from another server.. first it will check the credentials and retrive data and displaying in same dashboard screen ( here it is taking time)
once hit the login button and redirecting into a dashbard screen using response.redirect("dashbard.aspx"); it is redirecting to dashbard screen..once all the process of page load is comple,,,then it is displaying the dashboard page what i am looking is first i want to redirect to the dashboard screen and then process the case1 ( simple data ) ..and for case2 i just want to show some ajax spinner image on the second block..
I have update panel on the page to avoid postback and placed a dropdownlist control within that update panel. DrodownList is filled with Category names and also it's autopostback set to True.
Now whenever dropdownlist index change's on select, untill page loads complete  data it should show mesage as "Loading.... in center and middle of the page and background should become bit transparent". And when page load completely with data then that background and message should get disappear.
I am trying to write some code where it sets the imageUrl of an ASP Image from the codebehind (on a timer), but it does not change it on my screen (its changing in debug view). I assume this is because I need to postback everytime I change the image. Problem is, I cant trigger the postback from CodeBehind so that it will change. How do I do that?
[Code]....
I am so used to win32 forms -- Just started again with ASP websites.
I searched google and found asynchronise post back trigger is used if we want update panel to post back on some event of control if it is out side the update panel. Than what is purpose of post back trigger ?
In my application I am using ajax updatepannel in which there is a tab container tool having 4 tabs, in the third third tab I used ajax accordian control which has 2 panel each pannel have one gridview control a Remove button. Here what I want to give delete facility to the user upon the selection of checkbox corresponding to the particular record. But when I click the button it doesnot triger the button click event of the remove button.
I am a newbie in web development I came from win form environment. how to set tabcontainer (ASP.Net Ajax Tool) width size according to users desktop screen resolution?
I have question regarding printer option page which pop up when i click on print button on crystalreportviewer and when i click okay on that pop up page it displays print preview of the report.
Is there any way to skip that pop up window(Printer Option) and just display (PDF)print preview screen instead?
(I am not exporting report to pdf, just want to display printview screen and when the user click on print button it will print out the page)
I have tried following code but i am getting error:
"Object reference not set to an instance of an object."
I am new to web programming. I am developing a web program using asp.net(vb) that scrapes data of a certain website. I am using System.Net.HttpWebRequest and System.Net.HttpWebResponse to read the HTTP codes.My problem is I can not retrieve the codes of certain frame/container where the data that I needed is located in the website.I understand that iframe has its own URL or link aside from the main URL of the website
I have upgraded web application from VS.2008 to vs 2010. I was using previously ReportViewer 2008 control in a page and replaced with 2010 ReportViewer Control.
I have installed the ReportViewer Redistributable also in my local pc as well as in the server. Also as per the new requirement I have placed the Scriptmanager in the web page where the reportviewer control located.
While running the page, the reportviewer run the report and is not showing the data on the screen. It shows the blank screen. But If I export the data to execl or world it is showing the data. Also the page numbers in the reportviewer showing the total pages available in the navigation bar. I am sure the report is running and bringing the data to the screen but not showing it.
The below is the exact scenario, One form will be there and when user click on "Edit" hyper link other window will open to get more details. In that new window also I have a grid or a table which has other hyperlink which lead to open other window and in that window I will enter few details and save it....
I added a button on my website and tried to use confirmbuttonextender. I inserted it and enabled it on the button but when I run the application and click the button, the page just posts back, no pop up message or anything comes up. What would cause this? I don't get any errors
<asp:Button ID="Button1" runat="server" Text="Button" /> <asp:ConfirmButtonExtender ID="Button1_ConfirmButtonExtender" runat="server" ConfirmOnFormSubmit="True" ConfirmText="Once data has been updated, it can't be retreived" Enabled="True" TargetControlID="Button1"> </asp:ConfirmButtonExtender>
