A group I am in at school is developing a website for a client. It needs to be able to send weekly emails out to all users, as well perform many other scheduled tasks.My question is: what is the best way to fire events from classes within the solution with a timer? I've read that a Windows Service can be used...?
View 2 RepliesI'm totally new to the Microsoft dev scene so please go easy :)Currently, I have a solution that contains two projects (ASP.net websites, FWIW). If I create a class in Project1, how do I expose it to Project2? Is it automatically available to Project2 because they are in the same solution? Or do I need to do something special to make the connection?
View 5 RepliesI am looking for general direction on the best practice here. I have a class that I want to share between two different forms in two projects that are associated. The two forms are in seperate projects but both projects load together as I have added the second project to the first. I also have a class that I want to share between these two projects which will cause me to add another project to this solution with will mean I will have three projects in my solution. My question is how do I best share this class?
I believe the only way to do this is to add the class in the reference in both of the form projects?... Is this correct ? I'd really like to just reference the class and inherit it in the source code without adding it as a reference but I am feeling that I can't do that. I am obviously pressed for time and working on other projects and a I am a experienced coder with only about 1 year of C# experience...
I am currently extending the NopCommerce solution for a client and have some general questions about workflow, since this is a relatively large solution for me (50+ projects).
I want to add some classes to the DAL, BLL, and so forth.
What would be the recommended process for this workflow? For example, I created a class in the DAL -> ran build. Then I created a test.aspx page in the main project which instantiates this class -> ran build; however, adding just one line of code causes the solution to rebuild all other projects such as payment modules, which makes the process tedious.
Am I approaching this in the correct manner? I have read about: creating a seperate solution with relevant projects; is this the recommended approach?
i have a form in asp.net. I want to fire
[Code]....
can we use ajax timer for this if so how can we use it ? or there is any other way for this.
I'm trying to create multiple update panels to add to an accordion pane with timers with a _tick event to update the respective update panel on the page_load event.
[code]....
I need to have a timer to count down a multiple-paged online quiz. The timer countdown should decrement consecutively on each following page. It is tricky to use javascript to maintain the timer value across multiple pages through sequences of postbacks. So, I have been searching a server-side solution and found this:
http://forums.asp.net/p/1621352/4161304.aspx (see the response by Wenchao Zeng - MSFT, the 4th post in that thread).
I created a small web application to test it out and it works great. But when I put the code into a header user control (Header.ascx) in my quiz application, the Timer control's OnTick event never fires. I put a break point in the first line of Timer1_Click, but the debugger of visual studio never gets there.
I tried this:
[Code]....
The code behind is the same (except maybe UI control names) as the one we see at the thread I referred to above. But Timer1_Click never gets executed (and hence my countdown doesn't get displayed). The CountDownTimer class works just fine because I can see from the debugger that the time value is decreasing like I want.
I've run into a problem with one of my web sites and I am having trouble figuring out the problem and a good solution. This is my scenario: I have a user control that displays a slideshow with images and some text that changes every fifteen seconds. To do this, I have an update panel that contains a timer control with an interval of 15000. It calls a method called slideshowTimer_Tick in the codebehind. The web page that contains this user control is a relatively simple page; no update panels or timers, just divs.
The problem I have is that if I have two of these user controls on the page, the tick event only fires for the first control. It never fires for the second control, although the control is full initialized otherwise.
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?
View 1 RepliesWhat 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).
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.
Even though I when I create a linqtosql class I mark C# as the language it was always shows up as a Visual Basic file in the App Code file. I can't get it to stop doing that. ????? What is going on?
View 5 RepliesSo I have a page with an UpdatePanel and some controls in there. When I explicitly type/copy+paste the page's address into the address bar, let VS navigate there for me, or follow a link to the page, all of the AJAX works fine. But if I refresh this page, the JS on the page initiates the async postback, but the appropriate event is never called on the server (although Page_Load is) and the client never recieves the markup sent back by the server. This issue seems to be limited to Firefox 3.6 (Gecko build 1/15/2010)(doesn't happen in IE8). I have yet to try on other versions of Firefox.
View 2 RepliesI'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]....
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.
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 ??
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>
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.
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. <% ... %>).
I'm working on a questionnaire type application in which questions are stored in a database. Therefore, I create my controls dynamically on every Page.OnLoad.This works like a charm and ViewState is persisted between postbacks because I ensure that my dynamic controls always have the same generated Control.ID.
In addition to the user control that dynamically populates the questions, my questionnaire page also contains a 'Status' section (also encapsulated by a user control) which represents the status of the questionnaire (choices are 'Complete', 'Started' or 'In Progress'). If the user changes the status of questionnaire (i.e. from 'In Progress' to 'Complete'), I need to postback to the server because the contents of the dynamic portion of the questionnaire depend on the selected status.
Some questions are always present regardless of status, and yet others may not be present at all for the selected status. The point is, when the status changes, I have to postback to the page and render the right set of questions. Additionally, I need to preserve any user entered values for those questions which are 'always available'.
However, due to the page life cycle in ASP.NET, the 'Status' user control's OnLoad, which contains the correct status needed to load the right questions from the DB, doesn't get executed until after the 'dynamic questions' user control has already been populated (with the wrong/stale values).
To get around this, I raise an event from my 'Status' user control to the main page to indicate that the Status has changed. The main page then raises an event on the 'dynamic questions' user control. Since by the time this event bubbles up, the 'dynamic questions' user control has already loaded the 'wrong' questions from the DB, it first calls Controls.Clear. It then happily uses the new status to query the database for the 'correct' questions and does a Control.Add() on each. FYI, Control.IDs are consistent across postbacks.
This solution works...sorta. The correct set of questions for the selected status do get rendered; however ViewState is getting lost for those 'always available' questions. I'm guessing this is because the 'dynamic questions' user control calls Controls.Clear when responding to the status changed event. This must somehow kill the association between ViewState and my dynamic controls, even though the Control.IDs are consistent.
This seems like such a common requirement, I'm virtually certain there is a better, cleaner and less error prone approach to accomplish this. In case its not plainly obvious, I haven't been able to grok the ASP.NET page life-cycle despite working with it for the last year.
I'm new to ASP.net 3.5 and testing functionality before developing an asp.net web site. I created a page with a formview. I added several text boxes. I created an event on the FirstName_TextChanged event and added a stop in the sub. When I open the page in the browser and type in some text in the FirstName and press tab, nothing seems to fire.
1) Is this supposed to fire on the client side when text is changed?
2) If so, would the vb.net code entered work like Javascript code on the server?
3) If so again, is it possible to update another textbox based on the text entered into the FirstName on the Client Side (would do this in Javascript in Classic ASP)?
I think I'm totally confused. I've been searching web for article about how to do this.
I have created login page dynamically by using texteditor. Which includes 2 texboxes and 1 Submit button.
Im saving this html in database and loading this html in the login page. Means adding this html to DIV tag innerHtml. My question is how to findout these controls in the code behind page and how fire submit button click event. Or any other alternative to do this?
During Asynchronous postback (Ajax) will Page_PreInt() ,Page_Init(),Page_Load() events fire again?
View 1 RepliesI've got a Jquery function that I wrote which blacks out the screen after a certain amount of inactivity, creates a pop-up that allows the user to click a button to stay logged in, and logs them out (closing the application window) if they do not respond in time.
The environment is ASP.NET (VB). We don't technically use master pages, but we do have a parent page in which our header, footer and nav reside, and my Jquery code is called from that window, loaded via an IFrame.My problem is that if one is working in a child window, the parent window doesn't recognize that the system is in use, and will automatically engage at the allocated time.I've tried everything under the sun I can think of and nothing works properly. My event handler is working, and it does call the parent window function, but the timer is not being reset.
I have this function in the parent window:
<script language="javascript" type="text/javascript">
function window.reportChildActivity() {
SESSION_ALIVE = true; [code]....
I have a ListView control on a page that I need to support inline editing and inserting. Before I put it inside an update panel, everything was fine. As soon as I put it in an update panel, I seem to lose theOnItemUpdating, OnItemCanceling events. The OnItemEding event still fires, though.I am doing all updating, inserting manually.
View 4 Replies