Control Events Failing To Fire?
Feb 17, 2011
I have a Page that does a LoadForm("blah.ascx"). The Page does have a ModalPopupExtender on it (It was on the ascx originally but I moved it to the Page as a test, doesn't work either way). There is a Loop here so the LoadControl() will be called multiple times and will put multiple instances of the ascx on the Page.
Blah.ascx has some buttons on it but when I click the buttons the click event does not fire and the Page gets reloaded without the control on it anymore.
The Page.Page_Load event does fire. And yes, I have the LoadControl() inside an Not IsPostback check. Just the controls events, including Page_Load, do not fire on postback, only on initial load.
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Feb 17, 2011
I have one main gridview and child gridview.It showing all questions. for every question i have another gridview to show answer options.If i want to delete one answer option how can i delete?
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Jun 8, 2010
What I did is, I have made 2 user controls. One control is inside the other.
NoW one control has a buttton and a data grid and datalist in it. When pressing button I am filling datagrid while datalist visiblity false. This is working fine. But now when I press some link button in datalist data, it should call item_command event but it is not calling.
I have also used a Updatepanel as a wrapper(all controls are inside it).
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Mar 22, 2010
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Jun 30, 2010
I'm building a library of custom controls. My controls are inherited from CompositeControl. Depending on the user's answer I have to insert more custom control. I have a PlaceHolder (_ph) passed in from the client code. I insert my controls into that PlaceHolder.
My problem is the control I inserted in the event handler does not fire its event, but it fires the parent event. For example, if I have an EddDropDown A, and the user picks an answer, I have to create EddDropDown B and C in edd_SelectedIndexChanged. When I pick an answer for B, it fires SelectedIndexChanged for A instead of B.
I think it has something to do with entering the page cycle late.
this is an example of my controls:
using System;
using System.Collections.Generic;
using System.Collections;
using System.Linq;
using System.Text;
[Code]....
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Dec 20, 2010
Well, I'm sure this is not the first time to see this question. and TBH you can find this question answered on many other websites and blogs -not only here-
But I never saw a complete answer for this question, I mean no one talked about the advantages and the disadvantages. no one shared a real experience.
Although Quartz.NET seems like a good solution but yet, there's no enough reviews or a good comparison between the different ways to achieve such a thing.
As far as I read about it I found this are the possible ways of doing this :
Using a: Web Service, Windows Appliction, Console Application, Quartz.NET.
Examples of stuff I want to achieve with the scheduled or automatic methods/events are like archiving after a certain period, auto deleting/moving records in the database, setting a property of an object after a certain time, automatically run some methods according to my holiday schedule.
I hope you'd share your experience either with one of those approaches or share a new way of doing this.
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Mar 22, 2011
I have created a custom web control. In that control on CreateChildControls method i dynamically create a Table add rows to it which contains a ImageButton and i am trying to attach an event to this ImageButton but the event never fires?
I tried on Init method too it does not work . The code goes like this on CreateChildControls
I create a Panel . The i create a table with data and an imagebutton on it I add this table to the created panel I add this Panel to the Controls.Add method.
I have also observed that if i add a control directly to the Controls.Add() method and attach an event it works fine .
Meaning ,
1. Create a button attach an event handler
2. Add to the Controls.Add() method
On doing the above it works fine . Only the child controls events do not get fired is there anything that i am missing ??
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Feb 17, 2011
The if (!Page.IsPostBack) is always false went the page loads after i click a linkbutton and it never goes into the linkbutton event. Googled as much as I can. I am kinda new to asp
This is the code that i have in server:
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
SetDefaultView();
}
}
private void SetDefaultView()
{
MultiView1.ActiveViewIndex = 0;
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
MultiView1.ActiveViewIndex = 0;
}
protected void LinkButton2_Click(object sender, EventArgs e)
{
MultiView1.ActiveViewIndex = 1;
}
// and below..
<td>
<asp:LinkButton ID="LinkButton1" runat="server"
onclick="LinkButton1_Click">Tab1</asp:LinkButton>
</td>
<td>
<asp:LinkButton ID="LinkButton2" runat="server" onclick="LinkButton2_Click">Tab2</asp:LinkButton>
</td>
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Aug 4, 2010
I am trying to fire one event out of two avalible events based on a check box selectoin, I have already registered the two events in the page_load() and i check if the check box is checked (checkbox is located within a gridview) then i un-register one of the events and just keep one events registered as following(Only relative part is shown):
[Code]....
I am trying to fire one event only based on the checkbox selection. I tryed to debug and noticed that, in fact, both evetns always get fired starting first with Button_SessionStartOrEnd_StartSessino and then Button_SessionStartOrEnd_EndSessino. So how can i fire one event only? please note that my code to check if the ckeckbox is checked within the girdview works fine.
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Feb 1, 2010
For some reason I can't get the button event to fire...
This is my Accordion:
[Code]....
I dynamically add the panes and buttons...
[Code]....
These two should get fired - but they dont:
[Code]....
I read somewhere that I should add the button to the UpdatePanel
[Code]....
But when I do I get this error :
The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).
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May 12, 2010
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However in order to know which rows have been changed I have a textChanged event associated with each textbox, but the event isn't being fired.
Here's the ASP code:
[code]....
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[Code]....
the problem line is
[Code]....
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Here is how i create those controls:
[Code]....
"field" is hidden field containing filename of user control to be created.
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