Why Custom Event Handler Raising Two Times
Jan 14, 2010i have created a custom event and assigned a handler to it .
the line which raises event is called one time but handler is getting called TWO times , why it is so ?
Similar Messages:
Raising Custom Event - Cannot Access WebErrorEvent Due Its Protection Level
Apr 29, 2010I use SqlWebEventProvider to log the exceptions to sql server, and it works fine.
I also want to log custom exceptions to aspnet_WebEvent_Events table programmatically. Similar to - [URL]
WebBaseEvent.Raise(new WebErrorEvent("My Error message", null, 5000, e)); I get an error saying "Cannot access constructor 'WebErrorEvent' here due its protection level.
Force An Event Handler To Fire For A Custom Control On Every Postback?
Feb 11, 2011I've created a UserControl that is dynamically placed onto my page during the Init event. It populates and works great, but I'm left scratching my head at how to retrieve data from it during a postback.
It's effectively a multipick combobox that is manipulated entirely using clientside JavaScript (I'm using jQuery heavily). Inside the control container element, I render an empty DIV element that contains all of the selected items. As the user selects items, I generate DIVs within that container DIV that includes some markup. Of interest to me on the server side are the contents of a couple of INPUT fields.
After selecting an item, the rendered HTML looks something like:
[code]....
I may be completely off track and this may actually be impossible (or a stupid idea). The only alternative I can think of is to emit actual ASP.NET controls and hook the built-in event handlers.
Difference Between Adding Code In The PreLoad Event Handler And At The Top Of The Load Event Handler?
Oct 3, 2010Is there a technical reason for the existence of Page.PreLoad or is this just convenience to have a place where you can neatly place code that always have to be executed before the Load code? Is there a difference between adding code in the PreLoad event handler and adding code at the top of the Load event handler? And what would be a typical scenario where you use PreLoad?
View 2 RepliesForms Data Controls :: Custom GridView ImageButton Click Event Handler Not Firing?
Feb 10, 2011I am trying to create a custom GridView with a header toolbar at the top that will contain icons to export the grid view to different formats like excel, word, etc.. The problem is, I cannot get the method to fire that is assigned to handle the click event for the corresponding Image Button. The page posts back, but the code I have in the method to handle the click event does not fire. I have followed examples in other posts and from what I can tell I have followed what others have done. Can somebody take a look at see if they can find something that I am doing wrong.
[Code]....
C# - Button In Repeater Not Raising Event?
Aug 18, 2010When I work with the tab Ajax control, and in one tab, I have a Repeater: <asp:Repeater runat="server" ID="rp1" onitemcommand="rp1_ItemCommand"> and in protected void rp1_ItemCommand(object source, RepeaterCommandEventArgs e) method, I add a button and it's event:
Button btn = new Button();
btn.Text = "Update";
btn.Click += new EventHandler(btn_Click);
((Repeater)source).Items[0].Controls.Add(btn);
void btn_Click(object sender, EventArgs e)
{
Response.Redirect("http://google.com");
}
However, when I click on the update button, the event is not raised.
C# - Raising Custom Events To Allow Web User Controls To Intercommunicate?
Apr 2, 2010I have 2 web user controls, both inherit the same base class which extends UserControl. I want to raise an event on one and the other should be aware of it. both are on the same page however the 2nd control never handles the custom event i raised on the 1st one !
View 2 RepliesC# - Raising The Load Event Within A Dynamic Loaded Web Usercontrol?
Jan 19, 2011I need to load a web user control dynamically.
Looking at [URL] it states that the page lifecycle events are not fired.
I thought I might be able to raise the events through reflection. I cannot figure how to fire the events, am I missing something?
Vb.net - Vb User Control Raising An Event On The Calling Page?
Apr 7, 2010i'm trying to learn about user controls. I created a user control that has a textbox and a button. What i'd like to be able to do is when i click the button in the user control, populate a label in the aspx page. I understand that i could just have a button on the page that uses some properties on the user control to get that information.. but i'd like to know how to do it with the button the user control.. the reason for this is the button is just an example.. a learning tool. if i can get this working, i'd likely be putting thing in the user control that might require this kind of passing information. Anyway.. i've found some c# examples that i tried to get working as vb.. but once started getting into the delegates and events.. well.. it made me turn to this post.
View 3 RepliesAJAX :: Raising A Server-Side Event While Typing In A TextBox?
May 24, 2010I have a TextBox as bellow:
[Code]....
How can I raise a server-side event while I'm typing in it?
Raising An Event Inside A User Control That Returns CommandEventArgs?
Dec 5, 2010i have the following problam:i have a user control which i want to raise an event from to the page that is using that user control (its a button)anyway my problem started when i wanted to put this user control inside a repeater instead of another button (regular asp:button) anyway i needed to support CommandArgument so that page can use the buttonso i created a property:
Private m_CommandArgument As Object
Public Property CommandArgument() As Object
Get
[code]...
Forms Data Controls :: Edit Button Not Raising Event In Datagrid?
Jun 29, 2010I am using Datagrid.onclick of edit i need to raise a event and capture the empid in the method.How to proceed
<asp:DataGrid Runat="server" ID="gridProduct" AllowPaging="True">
<Columns>
<asp:TemplateColumn HeaderText="Employee Name">
<ItemTemplate>
[Code]....
Web Forms :: Accessing Master Page From Content Page - Raising Event?
Sep 10, 2010Here is my situation: I have a user control that has a menu in it. This user control sits on my master page. It is my main navigation menu for my application. I am having an issue where, on one of my pages, users seem to be leaving the page before committing all changes to the database, which results in a loss of data. So what I want to accomplish is - if the user is leaving this page and the data has not been saved yet, I want to prompt the user and say something like "The information is not yet saved, are you sure you want to leave this page" in a modal popup. So my approach is this: In my menu user control, create an event handler called MenuClicked that is raised when the menu web control's (in the user control) MenuItemClicked is raised, I raise my custom MenuClicked event. Then on my master page, I can catch this event in NavMenu_MenuClicked. My problem is - I need to catch this event in my content page, not the master? Am I approaching this correctly?
View 2 RepliesWeb Forms :: Add Event Handler To User Control And Capture Event On Parent Page?
Apr 24, 2010Using vb.net/asp.net 2005.
I have a page books.aspx that has a control named authors.ascx.
Inside the authors control there is a "select" button I want to add some kind of listener or event handler (not sure of the correct terminology) so on the parent page (books.aspx) I can respond to the "select" button being clicked.
I have to pass the authorID from the user control to the parent page.
In my authors.ascx control I just created this event:
[Code]....
Now I need to write the function for SelectAuthorBtnClick and I think add some kind of listener in the parent page to listen and handle the event.
Forms Data Controls :: How To Call A Button Click Event On From An Event Handler
Sep 29, 2010I got an event handler like this, in this event, i wanted to call another button click event. How can I do that?
[Code]....
if (ds.Tables[0].Rows.Count == 0)
C# - How To Call Silverlight Handler Event And Then Serverside Event On Page Submit
Mar 19, 2010I have a Silverlight control on page which has a upload control. the silverlight exposes some events such as
StartUpload() => To start the file upload,
StopUpload() => To stop the file upload if running,
CheckFileStatus() => to check the status of the file upload.
The page has aspx Submit button with onclientclick event and ocClick event.
<asp:Button ID="btn_upload" Text="External Upload" runat="server" OnClientClick="Javascript:StartUpload();"
OnClick="btn_upload_Click" />
When I click on the aspx Submit Button, the file selected in Silverlight control should be uploaded and after the completion of upload, the Server side event should get called.
Web Forms :: Frame Event Handler / Call An Event From The Second One After Clicking A Button In The First One?
Jan 26, 2010i have two frames in a page. the fist one contains buttons the second one the form. i want to call an event from the second one after clicking a button in the first one ,
View 3 RepliesWeb Forms :: Dynamic Event Handler In VB Not Responding To Click Event
Oct 23, 2010This event handler is not responding at all to the click event. On click, the pagination numbers disappear and I'm not able to trace it in the debugger because the event handle doesn't even fire so I have no idea what's going on.
[Code]....
Can Attach Event Handler To An Event OnInit Or OnLoad
Oct 18, 2010Found this question on an interview siteGiven the following methods of the ASP .Net Page class, in which of them would you attach an event handler to an event published by a control on the web page?
View 1 RepliesMVC :: How To Apply Custom Validator Multiple Times On A Single Property
Jan 21, 2011i want to apply my custom validator multiple times on a single property. i am using mvc 3 unobtrusive js for validations.i have tried this solution
http://www.paraesthesia.com/archive/2010/03/02/the-importance-of-typeid-in-asp.net-mvc-dataannotations-validation-attributes.aspx , but not working for me.I am getting error like this : "Validation type names in unobtrusive client validation rules must be unique."
Custom Server Controls :: Loading Same Assembly For The Multiple Times?
Jan 25, 2010Can you tell me how it is better to load classes from the same assembly for multiple times? I will explain:
I have a usercontrol that loads the class from assembly A.DLL using (MyAbstractClass)Assembly.Load(path).CreateInstance(type) each time requested page loads. The control can appear on the page many times (about 20-30) and each of them can load the different type from A.DLL...so if control exists on page 20 times, 20 times (MyAbstractClass)Assembly.Load(path).CreateInstance(type)
has been executed.
The question is performance...
Does ASP.NET caches DLLs already loaded dynamically? After first (MyAbstractClass)Assembly.Load(path).CreateInstance(type)and first IO, will ASP.NET load A.DLL from cache on other executions ? Or I need to implement some kind of assemblies caching myself?
If I need to implement caching myself, what is the best and fastest way to do it?
Web Forms :: Using A Custom Control A Variable Number Of Times On A Page?
Feb 2, 2011I'm a newbie here. I have created a custom control that requests a set of data from a user. However, I want to be able to have a variable number (dictated by the user) of these data sets entered on each page. How can I create and refer to a variable number of instances of a user control on a single page? It's hard to explain in words, but I'm basically looking for some way to do what amounts to the following:
[code].....
Is there a straightforward way of doing this? I haven't been able to find a clear answer via Google, which brought me to this group.
Web Forms :: Page_Load Event Can Call Two Times?
Jun 19, 2010I 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>
MVC :: Application_start Event Called Multiple Times In Application
Sep 15, 2010In my MVC application ,I am updating my web.config at runtime through application_start event.So, ideally it should be done only when the application is started.BUT in MY mvc application the application_start event of global.asax is being called multiple
times , even when i have not restarted the application.
Its being repetadly called when i am calling different actions , so the webconfig is repetedly updating & making my application very very slow. what's the reason & how to handle this .
C# - OnCheckedChanged Event Fires More And More Times For Every Time It Is Clicked?
Aug 31, 2010I have an ASP.NET page that contains a gridview.
I have to create columns dynamically based on a datatable, some field type info and some header texts.
I do that by creating templates.
It created the grid fine and all looks good, however when i click a checkbox and the checkedchanged event fires then something odd happens
The first time i click its fine and i get the expected values in the event
But the second time then the event gets fired with the values from the first time and then again with the values from the checkbox that i actually clicked.. The third time the event gets fired 3 times, first 2 times with the old values and the third with the correct value.
Here is the code:
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;........