Web Forms :: How To Get Elusive Information At Page_Load Time
Aug 13, 2010
I need to get some information to the server when page is loading (Page_Load sub), but this information is only available through client JavaScript (such as client local time or window dimensions).
Is there a way to call a JavaScript from Page_Load? Perhaps a service?
I thought that Page_Load events executed every time a page was loaded not just the first time. Am I wrong on this?
I have a Page_Load event that writes text to a label to display on the screen: Output.Text &= "Welcome to my Website <br />" (Output being the ID of a Label control)
I also have an On_Click event for a button to display the same information: Output.Text &= "Welcome to my Website <br />"
After clicking the button, I expected to see the output twice. Once for the page being reloaded and once for the click event. I thought that Page_Load events executed every time a page was loaded not just the first time.
I am making an online form (literal form) that needs to have a certain function: when the user enters a 5-digit number, the form should automatically query the MS SQL DB and retrieve information associated to that number and populate other form elements (text boxes, etc.) accordingly.
So say the # was 12345 and in the DB, the record matching 12345 has name=Fred. So, when I enter 12345 into the form textbox, the name text box should be automatically populated with Fred in it.
If this is not easily achievable, I guess a submit button beside the 5-digit number text box can do.
I am still learning my way around ASP.NET and Visual Studio 2005, however I have ample experience with HTML, CSS, JavaScript, C/C++. The ASP.NET app is to be written in C#.
how to suppress the "AM" in the gridview (template Bind("RideTimeMin", "{0:t}")? Don't tell me to use military time because the function is not "time on a clock"; it's how much time is allowed for a task (in this case the min/max hours & minutes that horses have to complete a 20 mile trail; e.g. 05:00, 05:27, etc). I'm currently accomplishing this in the "ondatabound" function by "..RTmin.Replace("AM","")". I have looked and looked at all the websites that talk about datetime formatting but have yet to find a way to do it upfront in the gridview bind statement.
I am developing a website using ASP.NET 2.0 with C#.
Now i need to disable the Variuos key combinations such as CTRL_ALTR_DEL, .......after pressing any key on the web page irrespective to the page controls. I need this code snippets in the C# of a ASP.NET Webpage....
I have a couple of sqldatasources. One of the control's parameters is based on another's selection. How can I control which one selects first? Does this occur in code behind? Is there an event that I can set a sqldatasource.select() before the other one selects on it's own time?
,im loadinginformation via sessions when the infomation loads to on one of my labels it looks like this 2221.0000 but its not a double number i think any more.But i need only the last two letters to be removed on page load eventI know this is easy....i have tried this lblpn.Text.Substring(0, lblpn.Text.Length - 2); //in page_load
Please have a look at my VB/ASP code and tell me if you can see what's wrong (I have bolded the important segments):
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Basically, I'm trying to get the Page_Load subroutine to execute on the page load, but it doesn't seem to be called. I'm assuming that because I set my feedback label to "feedback" in the Page_Load subroutine, I should see it displayed on the page saying"feedback" on first loading the page and every time I refresh. But this doesn't happen. I'm lead to conclude that the Page_Load subroutine is not being called on the page load.
My web application has hosted on the canada server but my all clients are indians.So, as I am using System.datetime.Now to store all the dates in application.Obviously, it is displaying the canadian time instead of india time.How can i do it?Is there not any gloabl settings that we can do in our web.config file so that it indicates to the server at run time which time zone to execute..?Or any other suitable alternate?
I'm trying to call a base class specifically; Release class into a Page_load method.The release class is linked to a baseclass which contains a method Dataset GetresultHow do i call from the release class into the page load and use GetResult.
I've been trying solution I've found oline all day trying to get a GridView to Display its Header when its datasource returns 0 rows. So far, nothing has worked for me. I did come across an interesting bit of code, but I'm having a spot of bother with something else preventing me from getting it to work.
Initially in my website page_load for the landing page say test.aspx was called twice everytime when it was getting loaded. Since my application is an upgraded one (from VS 2003 to VS 2005/2008), I commented the "this.load" event in InitializeComponent and it is working fine, when user first logs in, into my web application. But then, whenever user navigates to this page from any other page in my application, page_load gets called twice.
I've reated a project containing 15 pages , (inculding one for logging in )well , i've noticed that actions located in the page_load function are not executed! (i've tested with changing the text of a label and a text box) and it's in all pages except the authentification page!i've read tht it's probably due to the DATETIME class used in pages. but is there any other explanation? or is there any way to fix the problem
I would like to refresh a asp.net page from Page_load function.Basically i am calling a function which update a sharepoint UIcontrol but i need to refresh the page manually with F5 to update the changes.
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What i would like to do is refresh the page programmatically in c# after updateLoginUser(url); code.I have been looking at http://forums.asp.net/t/1161549.aspx but it tells me how to do in javascript.I would like to refresh the page after Page_Load has been completed. Therefore just after updateLoginUser(url); code.How can I do this easily ?
I have a page, which load a tab with usercontrol this usercontrol inturn loads an another usercontrol that has treeview. Issue: On (!Postback) of treeview control page_load, this load is gettting called twice. it is not callign the page_load of page but just the control page_load twice.
Tried: changed autoevenwireup from false to true, true to false (no change) Add/Remove of EnableViewState="true" ViewStateMode="Inherit" doesn't make any difference.
but if i add another usercontrolB and load that instead of this controlA, the ControlA still gets called on page_load once and ControlB also once.
I have a page with four panels. On page load all the panels are visible. there are radio buttons YES and NO. i have written java script such that if YES is clicked, certain panels are displayed and if NO is clicked, other panels are displayed.Now my problem is, on page load i dont want all the panels to be visible. If i use <control>.visible = flase on page load for those panels, java script is throwing error "Object Missing" when those radio buttons are clicked.
I just have one quick question concerning WebPart ChromeStates; we have several WebPartZones in a page. Management now has this requirement: all webpart chromestates should be set to Minimized on Page_Load, whatever the last saved state is. In fact, it is better that it doesn't remember it's saved state at all. Problem is, if we close the page with one or more WebPartZones ChromeState set to Restore / Normal, the next time the page is loaded, it remembers those states. We just wanted it to be minimized on each page load.
We have already set profile AutoSaveEnabled to False, set each WebPart ChromeState to Minimized on each Page Load via code-behind, Reset Personalization Settings on each page load, and all other things I have researched in the forums, yet, it still retains.it's last state upon browser close. We use IE 6 exclusively, and we are not allowed to upgrade to 7 or 8.
i have explicitly added __doPostBack() on Button onclientClick event .
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When I am clicking the button the Page_Load is calling twice.
But if I am adding below code inside page load ,page load is calling only once on button click.
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and return true is giving me again twice page load ,but adding return true or false in attribute.add code is giving the same result ,only one page load call.
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I am not able to understand what is going on exactly I try to add __doPostBack in different way.