I am using ASP.NET. I have to set the value of a variable [testVar] into javascript on page load. only for the first time when the page load. Just like !IsPostBack event on code side. From next postback this function of javascript should not call.
View 1 Repliesi do not know what is going on my firefox!
my aspx and javascript codes are like this :
[code]....
when i type something in textbox 1,2,3 so i see just first alert (mean a,b,c).
I want to implement event management in my application and i want to know what may be the best practice to achieve this goal. Event management in my case is to maintain a log of every insert/update/delete operation perform with username and datetime in my application
View 2 RepliesI've declared an event on an HTTP Module so it will poll subscribers for a true/false value to determine if it should go ahead with its task of tweaking the HTTP Response. If only one subscriber answers true then it runs its logic.
Are there potential pitfalls I'm not seeing?
public class ResponseTweaker : IHttpModule {
// to be a list of subscribers
List<Func<HttpApplication, bool>> listRespondants = new List<Func<HttpApplication, bool>>();
// event that stores its subscribers in a collection
public event Func<HttpApplication, bool> RequestConfirmation {
[Code]....
I this is a simple thing:textbox.text='user typing';
Button: store the value to a variable and a database.
Very simple, nothing to it.But there should be no post back, that is the page must not load again.Try Ajax? I tried it, but it is not working.I lost a lot of time trying to implement this using JavaScript Ajax and read many many posts. But for some reason I cannot implement the functionality correctly.
how to implement click event for hyperlink as I am using hyperlink to logout the application and need to write the logout code in the event. For some reasons I am not able to use linkbutton.
View 8 Repliesi have a button image in gridview when clicking in the button i send values using session to another page ...my wish is send others values when clicking on right click to another pages ?
View 1 Repliesim trying to implement a lightbox on a gridview. the lightbox i'm using is the one from here at particle tree anyway, so basically you need to include a css and rel on your link to make it work. i was able to succesfully include a css class without problems on every cell with TemplateField:
<asp:TemplateField HeaderText="Set of Links">
<ItemTemplate>
<asp:HyperLink ID="hyplink" runat="server" Text='<%#Eval("Link") %>' CssClass="lbAction" NavigateUrl="tolink.aspx?ruleset={0}"></asp:HyperLink>
<asp:LinkButton ID="link" runat="server" Text='<%#Eval("Link") %>'>LinkButton</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
so that's what i have. mind you, i was just trying it out which one is better, hyperlink or linkbutton so either object i can use as long as i can add a rel attribute on it.
this is my code behind.
[code]....
i want an stop watch with start button and stop button in my asp.net 2.0 page
how to implement it and a stop watch to calculate how much time user is viewing the page so that i can add this time in my database
I am working on rewriting URLs Urlrewriting.net, and have run into what seems to be a common problem but I can seem to fix it. I'll present a simplified case.
The URL rewriting is working perfectly with the rule:
<urlrewritingnet rewriteOnlyVirtualUrls="true" defaultPage="default.aspx" defaultProvider="RegEx" xmlns="http://www.urlrewriting.net/schemas/config/2006/07">
<rewrites>
<add name="catalog" virtualUrl="^~/catalog/(.*)/(.*).aspx" rewriteUrlParameter="ExcludeFromClientQueryString" destinationUrl="~/catalog.aspx?cid=$1&c=$2" ignoreCase="true"/>
</rewrites>
</urlrewritingnet>
On the page I have a DataList with 2 asp:buttons inside. When clicked, the page refreshes but does nothing.
I followed ScottGu's article to impliment a form control adapter to rewrite the action of the form to match the rewritten URL.
Page URL in the browser:
[URL]
<form name="aspnetForm" method="post" action="/dev/catalog/13/Music.aspx" id="aspnetForm">
I now see the correct URL on the form action, and when debugging I can see the page load event firing.
The problem now is that every time the page loads Page.IsPostback is false, causing the page to rebind the DataList and therefore ignore the ItemCommand the buttons should be triggering.
if (!Page.IsPostBack)
PopulateControls();
I'm using .NET 3.5 SP1, there is a ScriptManager on the master page but no UpdatePanel on this page. I've also tried resetting the Form.Action property and bypassing ScottGu's solution with the same result. If I go to the page URL directly without using the rewriter everything works fine.
have gone through many post but unable to identify how IsPostback peroperty of page works.HTTP is a stateless protocol so how server identify that a client is making request 2nd time not 1st time and set the value for IsPostBack Peoprty.
View 2 RepliesMay be this question sounds silly, but I want to add an event for the Dropdownlist web control (using VB.Net) to implement Click event. I have a Dropdownlist control with some items. As soon as user selected an item, it should display some records based on the selection. Currently I am having a Submit button and user has to hit on that button to see the records. I want to remove the Submit button and wants to see the records as soon as the user choose the item in the dropdownlist
Dropdownlist is coming with default event "SelectedIndexChanged" and it is not helping me to achive what I want
This is my code that I tried so far (but zero luck)
[Code]....
I am using asp.net 3.5 and sql server 2008 r2. I have to make a webmail interface ,in this i put the event calender like yahoo.
View 1 Repliesi want to try the event of my button, instead of using a button i want to use double click Row of Gridview
This my event in button:
Protected Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
gridtolabel()
Session.Add("EquipCode", EquipCode)
Session.Add("ContractID", ContractID)
Response.Redirect("Edit.aspx")
End Sub
Inside my boxLang_OnSelectedIndexChanged() event I got this :-
if (txtbox1.Text != "" && txtbox2.Text != "")
{
ScriptManager.RegisterStartupScript(Page, Page.GetType(), "confirm", "confirm('Changing the language will clear the text in the textboxes. Click OK to proceed.');", true);
txtbox1.Text = "";
txtbox2.Text = "";
}
Now what is happening is that. When I select a different item from the drop down list this confirm box does show up BUT it first clears the content of the text boxes and then this confirm box appears. What I want is that the textboxes content should be cleared ONLY when OK is clicked.
How can I accomplish gridview sorting in client browser using javascript ? without using inbuilt gridview sorting method. I really dont want the gridview to go to the DB each time while sorting.
View 1 Repliesthe simple difference between Ispostback and Iscallback..
View 1 RepliesWe got a requirement to implment following structure of table (It's a sample; data source is dynamic). Notice that there are intermediate Total (sum) values for the month. If we have the data source (Date and Amount) besides Total, which is calculated out, generate this kind of table-style layout dynamitcally?
Date Amount
==========================
1 Nov 300
22 Nov 500
30 Nov 200
Total 1000
5 Dec 100
28 Dec 200
Total 300
I'm trying to cache a complex page with lots of controls on it so that if the user navigates to it later it will look like it did when he last saw it.The page has controls which post back and other controls are populated depending on the selections.
I'm using [Code]....
after the <@ Page directive.
What happens is that a postback gets the cached page, so no processing and it looks the same regardless of user selections. So far so good. But if I browse to another page and return by a link, the cached version is ignored and the default page is created again. This is more or less the opposite to what i want.
I attempted to use the validation callback to ensure that a postback resulted in a new version, and that worked, but it still ignored the cached page if it wasn't a postback.I realise that it will need more work to ensure each user gets their version of the page from the cache, but why bother if this doesn't work.
I am looking into someone's code for a production application which is working fine.There is one page (main.aspx) and this main.aspx has 5 user controls inside it.Inside the Page_Load event of the main.aspx and all other user controls the first line of code is:
protected void Page_Load(object sender, EventArgs e){
if(IsPostBack) return;
I am finding this line very strange. As all the button events are postbacks. Then how come this application is working fine?
I'm developing a custom URL Rewriter for a ASP.Net 3.5 project. This rewriter is not functionally different than most rewriters out there, the only difference being that the friendly URL collection is not loaded from a web.config file -- it's coming from a database instead. I made the naive assumption that it would be easy to develop a custom rewriter module from scratch, but now I know the mess I put myself in. I digress; let's go straight to the technical issues.
While testing the rewriter, I set up a friendly url that would take the user to a web form. Postbacks from this form should not alter the friendly address, as anyone would expect, sohttp://my.web.site/app_root/FriendlyURL is always rewritten asttp://my.web.site/app_root/not_friendly/form.aspxThings are fine when the browser first loads the FriendlyURL. The page comes up and is completely functional. However, when the form is posted back to the server, the page simply reloads but, at server-side, IsPostBack is false. It's like F5 was hit, except that a HTTP POST had indeed occurred.Unsurprisingly, when the interaction occurs through the "unfriendly" URL, the POST action triggers the postback as expected. This evidence suggests that HttpContext.RewritePath is somehow messing with the page lifecycle in a way that it loses sense of the postback operation.
I am designing an ASP.NET web application (.NET 4.0) which basically has a page that should interact with the code behind every 1-2 seconds (Using Client callbacks or PageMethods via ScriptManager or jQuery.ajax) It'll be hosted on an intranet, so a 1-2 second refresh rate is kind of reasonable.
How can I make the page to access the web service/pagemthod in the code behind in a timeply manner (e.g. every 1 second). Should I use a javascript timer (I'm not familiar with javascrip very much)?
Although the site is hosted on an intranet, but I still need to implement a good approach to reach the desired refresh rate. the amount of data being transfered is about 1KB in each interaction. What are your recommendations on my design regarding this? (using callbacks or ScriptManager or jQuery.ajax,...
I have a search textbox in the web page. When the user presses enter key after entering text in that textbox then the search function should get executed. How to do this?
View 5 RepliesI have an asp.net page that sets a few session variables. On my development machine (localhost), I do a postback and the session values are still populated.
When I Reload the page by clicking on the url bar and pressing enter the session variables are still there.
However when i deploy this page to a webserver, the page still retains the session values when doing a postback, but as soon as i click the url and press enter the session values are lost (where the ispostback = false)
But when i press the refresh button the session variables are present (but i do get a popup warning me that the page data needs to be resent!)
i am running IE 7, and the webserver is iis6 what am i doing wrong?!
I have a page that uses a user control, I have to detect the pages !IsPostBack in the User Control and do some operation
In the User controls page Load method I tried using the following variations to detect the first load
!Page.IsPostBack
!Page.IsCallback
!this.IsPostBack
!this.IsCallback
!this.Parent.Page.IsPostBack
!this.Parent.Page.IsCallback
None of these worked, they all fail to detect the parent pages 1st load in the usercontrols page load method
I also tried using
if (Request.UrlReferrer.AbsolutePath.ToString() != "/PreviosPage.aspx")
This worked for Fire Fox and Chrome but not IE (IE has issues with Request.UrlReferrer, it throws a null exception)
So I cant use this approach as well.