I have a dynamically created user control which is accomplished usingLoadControl().
When I debug, the LoadControl call is called once, however the Page_Load inside the user control is called twice. On each occasion, the postback property is false, so it seems somehow the Page_Load event is called outright 2 times and nothing to do with any postback?
Page_load event fires two time in firefox and the same page is working fine in IE. What might be the problem? If it is problem with Autoeventwireup then page_load event must fire two times in IE too. I believe it is not a issue of Autoeventwireup.
how can i find out exactly where the issue is.
I have a page which contains linkbuttons and panels. all panels have DetalilView and gridView controls. On click of linkbutton, panel's visibility is set. everything works fine on my local server. But on production server, no events of Button, DetailsView and GridView fires.
View 5 RepliesBasic concept of AJAX is to cause Partial post back of the Page. If we use AJAX, Page Load occurs, than what is the difference between normal Pages' Page_Load event (without ajax) and Page load event of a Page with ajax.
View 10 RepliesI've tried to wrap up my problem with a complete example below - the original problem is part of a jQuery plug-in that I'm writing to extend the behaviour of an ASP.NET ajax application I already have.
The aspx page below has one drop down list which is marked for auto post back. I've also bound a change event using jquery (which ultimately I will swap for a .live() event to maintain the binding after the update panel refresh.) The problem is, when the jQuery event is bound I see two ajax begin requests and page_loads fire but only one ddlTest_OnselectedIndexChanged event. One of the page loads is malformed too - the content-length states it's about 300 bytes long whilst the totalBytes is 0 and form data empty. This does not happen if I bind to the click event of a button.
why the erroneous page_load event is firing ?
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I have a web page with a nested grid. I bind the nested grid via the outer Gridviews RowDatabound. The problem I'm having is when a user click on a CommandField in the nested child grid the Page_Load event is fireing twice and reloading the grids, making it appear that the nest grid collapsed. I have tried using "If Not Page.IsPostBack" but because the page posts back twice the IsPostBack is false until the second time the Page_Load event fires.
Here is my Page_Load routine
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim test As Boolean = ScriptManager.GetCurrent(Me.Page).IsInAsyncPostBack
If Not Me.Page.IsPostBack Then
If Not ScriptManager.GetCurrent(Me.Page).IsInAsyncPostBack Then
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I have noticed that window.onunload event fires off AFTER page_load event which makes no sense.
This behaviour is creating an issue for me - in my unonload I clear the session, so if the Page_Load first BEFORE onunload, there are errors on the page displayed.
I would expect the javascript onunload to fire BEFORE Page_Load....is that the correct assumption?
TO CLARIFY: Let's assume I am on page test.aspx, then I click on the link that goes to the same page (say I click on a menu), what I observe is that Page_Load fires first, then onunload fires off.
Makes no sense at all.
why the gridview RowDataBound event fires during a select command. I only expect it to run when the gridview is being populated with data. Is there some way to stop it from running when the select command is triggered?
View 3 RepliesI have page having two user controls. Now I have a requirement for which i have to trigger one user control event from another user control.
View 1 RepliesI have created a class in c# inside a class library and i have added this control to the default.aspx, but my code doesnt fire the page_load event. Here is the code:
The page loads but doesn't show the label on the page. I have added the control to the page correctly without any errors. I have event added the register tag in there.
html tag: <RandoIntegerControls:RandomIntegerControl ID="RandomIntegerControl1" runat="server"></RandoIntegerControls:RandomIntegerControl>
using System;
using System.Collections.Generic;
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I have 2 usercontrol in my .aspx page.
usercontorl1:
<asp:textbox id="txt" runat="server"></asp:textbox>
<asp:button id="btn" runat="server" text="send" />
usercontrol2:
Here I have gridview control with checkbox for selection of one or two records. Have one button and when clicking this , i need to get the selected records values and assign this values to the textbox which is in usercontrol1.
I want to restrict the user if they select the language which is already selected by displaying alert msg using JQuery.
Is there any event which fires before the change event.
I can't figure out why, but before my form is even displayed, the CheckChanged event fires. I don't even have a chance to check anything. Has anyone seen anything like this?
View 3 RepliesI'm trying to prevent the user of double clicking on a submit button.I have been looking arround for the solution but still can't get it to work.
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Now when the user clicks on the button it is diabled and the page,load event is fired. But it does not fire the buttons click event.
I dont know what happened but none of my buttons or linkbuttons causes a postback anymore. I have dragged a few updatepannels on the page but the linkbutton concerned is not enclosed within an update pannel. when I click it there is just no postback happening anymore. I set the debugger at Page_load but...its not reached. I used firebug to analyse the http requests. there is none. its like those are not considered buttons anymore.
View 5 RepliesI have the following problem. I have a user control with its own events and procedures. I added this control to a page programmatically. It appears as it should but when you click a button on the user control. the control disappears from the page.
View 6 RepliesI have a LinkButton which fires an OnClick event to update some Labels; however, after the first firing of OnClick, it won't fire again when I click another (or the same) LinkButton which runs the same OnClick event. (It's a list of people, each a LinkButton, and clicking on one brings up their details)
If I leave the page a few minutes, it will work again, almost as if whatever was preventing OnClick firing timed-out. Of course, this won't be any use to the users!
This is my ASP.NET code for the LinkButtons (encapsulated in a DataList):
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All the connections work, the data is retrieved, etc, so everything except the OnClick firing works. I've done a search of the internet and the forum, and found this seems to have been a long-standing problem since the first ASP.NET, but there is no solution for ASP.NET 3.5. Does anyone know what causes this, or where I might be going wrong?
OK, been burning up Google and Bing trying to figure out a good solution to this problem, and so far, I feel like I've taken a dive down a rabbit hole - I'm just waiting on the Queen of Hearts and the Mad Hatter to show up. Alice is kinda cute, but unfortunately, she didn't have any good suggestions, either.
Here's the scenario - I have a User Control on a Child Page that has a Master Page assigned. The control is for logging in to the system, so it contains two text boxes, a couple of links to password recovery and registration, and an ImageButton to handle submission of the username/password entered in the text boxes.
Everything works just as expected when the user actually takes the mouse and clicks on the ImageButton control.
Things don't work so well when the user enters a username and password and then presses the Enter/Return key.
While debugging, VS2005 (I know...ugh!) will stop at the LoginButtonClick event, and seems to run the code. Of course, the .Text property of the two input controls was empty, but the Request.Form collection had the values burried within the collection of Keys.
So, a little bit of digging got me to the point where they can login using either the Enter key or clicking on the ImageButton. So, everything seems like it's good, right? Nope, not so fast.
When I enter a username/password combo that's designed to fail authentication, the code will step through setting the error message, etc, but that information never makes it to the point where it's visible to the user.
I'm not seeing any extra postbacks (obvious ones, anyway), but for some reason, when the page goes to redraw when it's in a "failed" state, the notations just simply aren't there.
Below is the code in the User Control that handles the actual authentication routine. All controls, such as the Label with ID "message", are local to the User Control, so I don't think it's a FindControl("message") problem or something similar...just so bizarre that it disappears seeming without reason.
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I open a pop up window by window.open, then after selecting value from grid link i need to move my parent page as i am doing like
<a href="../../AddressBook/AB_UDCMaster.aspx?mode=Search&ParentCode=<%# Container.DataItem("ParentUDCCode") %>&UDCParentID=<%#Container.DataItem("UDCParentID")%>'"><%#Container.DataItem("ParentUDCCode")%></a>
This should be an easy solution but I get stuck with it and hope I can get some advice/guidance from you:I have a simple aspx page with a Paypal button in it. The code shows in .aspx page:
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I'm using ASP.NET 3.5 and C#.I load an SqlDataSource into a DataView on my Page_Load event. My SqlDataSource queries arandom record from the database. On my page I have an ImageButton, which when clicked uses a Response.Redirect("AnotherPage.aspx + "random id from database"). My problem is that when the button is clicked it fires the Page_Load event before the Response.Redirect takes place in the button_click event. This causes the current data(the users "id") that I had pulled from the database to be overwritten with new data(a different "id") from the database. So essentially the the page is redirecting to the 2nd random id that is queried from the db after the button is clicked and Page_Load is fired again, not the original id. Here's my code, hope it makes sense.Here's my Page_Load:
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Then my Button_Click Event:
protected void btn1_Click(object sender, ImageClickEventArgs e)
{
Response.Redirect("~/Profile.aspx?id=" + id1);
}
Can I put my dataview in another event or method so it's not called when a user clicks an ImageButton. Also I want the DataView to be repopulated on a postback/page refresh, just not on button clicks.
I have a GridView, here I am adding the LinkButtons at runtime to the GridView cells. I am also attacing an click event on these LinkButtons.
The issue is that when I populate the GridView from the Page_load the LinkButton click works, but if I move GridView polulation code in the Page_PreRender event the click event doesn't executes.
Code:
private void Page_PreRender(object sender, System.EventArgs e)
{
//does not fires the Click event of dynamically generated LinkButtons
GridView1.DataSource = getDataTable();
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I have a little question about building controls at runtime.
In my case I would like to create a checkboxlist in my page_load event
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This control is a part of a wizard-Control. At the end after clicking the finisch-Button, the selected values have to sent by email to me. My question is, how can I get the ID of the Checkboxlist-Control whitch was build at runtime?I tried following workaround
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But I get following error-message:
System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
I am using radiobuttonlist and textbox in the gridview. I need to do operations on radiobuttonlist so that it should reflect on textbox . this is to be done after gridview_rowediting event fires i.e when we can see "update" and "cancel" buttons. I tried like this,
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here default selected value is "0" given in source.
My problem here is when I am changing the selecteditem, the corresponding action is not done.
I have a UserControl, which contains another UserControl with Button. I want to add an event to that button in first UserControl (parent). I tried to do:
void Page_Init()
{
var btn = ChildControl.FindControl("SearchButton") as Button;
btn.Click += new EventHandler(this.SearchButton_Click);
}
but btn is null. How can I do that ?