I'm referencing this article:[URL]Specifically, this line:
"The Init event for each child control occur before the corresponding event is raised for its container"
I've never noticed this behavior before, but can definitely see that this is correct. I don't understand WHY this is necessary though. Can someone shed some light on this?
Here is my simple markup, I hope its understandable as to what I am trying to do
<form id="form1" runat="server">
I'm adding multiple TextBox and DropDownList controls programmatically on Page_Load. Some of them have attached RequiredFieldValidators that are being built programmatically as well. The issue I'm having is that when the Submit button (also added programmatically) is clicked, a postback occurs before the RequiredFieldValidators mark their respective fields as blank. How can I get these to fire client-side like they're supposed to?
View 1 RepliesI have developed .net web application. When i change the page name(Which is not exist) in URL, it throws following error msg. I could not redirect the error page for respected error no(401.2..) Through IIS Admin and web config. Could anybody give appropriate solution. It is urgent. Access is denied. Description:
An error occurred while accessing the resources required to serve this request. The server may not be configured for access to the requested URL. Error message 401.2.: You do not have permission to view this directory or page using the credentials you supplied. Version Information: Microsoft .NET Framework Version:1.1.4322.2470; ASP.NET Version:1.1.4322.2470
I have serveral long ASP.Net pages, I use RequiredFieldValidator, RegularExpressionValidator and ValidatorCalloutExtender for validations, Submit buttons are typically at the bottom of the pages. The problem I have: if the errors happen at the top portion of the page when Submit buttons are clicked, the forms do not scroll to the top automatically, the users have to scroll up to see the ValidatorCalloutExtender.
View 2 RepliesI'm having trouble with an image button I create via c# in an event causing page validation to occur on postback. The CausesValidation attribute is set to false at time of creation in the event. I also wire up the Click event in the page_init with postback so not to loose the event handler if the page posts another way. Here is the code I'm using in the click event of a Button. I've also tried to enable and disable viewstate for the button with no luck. What am I missing here that continues to fire page validation in the Click of this imagebutton?
[Code]....
I am creating a dynamic <asp:Table> based on a user's selection from a DropDownList. The number of columns and rows in the table depends on the user's choice from the DropDown.
The final two columns in each row needs to contain an Edit and Delete button. I am able to create these buttons programmatically. However, I am unable to get the click event to fire.
After researching this, it appears to be the case that my dynamic Web controls need to be created in the page Init method.
However, I am unable to do this as I do not know how many table rows, columns and buttons to create, until after the user has made a selection from a DropdownList.
I would be be very grateful for some tips on the correct way to create and enable the events for my dynamic buttons, in this scenario.
Here is a brief outline of how the program currently works (this is just a brief outline I quickly sketched, small details may be wrong!):
[Code]....
[Code]....
I am using VS2010 and.Net4.I am trying to return all events that occured on a day.The datatype is SmallDateTime in SQL,and DateTime in .NET.he FindToday() method will not return events where that time has been modified,only those with time of 12:00:00 AM.I need a LinqToSQL script that returns all events,or a method in System,Repository.
View 1 RepliesPublic Class PMRADGrid
Inherits System.Web.UI.GridView
Private Sub PMRADGrid_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[code]...
I have the following within an updatepanel. If i make a selection somewhere else that has its own updatepanel, this data gets cleared.
[Code]....
What am i doing wrong? each updatepanel has its own trigger assigned to it.. so why would updatepanel#1 trigger cause updatepanel #7 to post and cause the field to clear? Even if i tab out of the textbox before completing it, causes the field to clear..
in my table data are stored many times ...I want select the only one data from the repeated data
select ven.Id,ven.Vendor_Name from Purchase_Requsition pur,Item_master itm,Approved_Vendors ven where itm.Item_Id=pur.Item_masterItem_Id and ven.Id=itm.Approved_VendorsId and pur.Request_StatusId=1 and pur.StatusId<>4
ID VENDOR_NAME
1 Ranbaxy
1 Ranbaxy
1 Ranbaxy
2 cipla
i want to make it thru query as
ID VENDOR_NAME
1 Ranbaxy
2 cipla
how can we show error in our application when exception occur in webs service
View 10 RepliesI have been using a function that replaces some characters from my editor in asp.net with '+CHAR(x)+' to chain together a string with characters such as single quote that would otherwise break the query, i know how to escape the character using double single quote but i was wondering why i get this problem.The problem is that when the string gets too long about 7kb to 8kb its gets cut off for no reason, no error message gets displayed, the query is successful only the string cuts off at a point. When i escape the character without using '+CHAR(x)+' to add the character i can add a very long string that does not cut off,i am using Varchar(max) for my field, (have also tried text).I am using sql 2008 express edition, and encounter this problem when i paste the generated query into sql management studio, and when i execute the query fromasp.net code.
View 1 Repliesthe exact difference between PreInit and Init in the ASP.NET Page LifeCycle ?
View 10 RepliesDuring a recent interview the following question was asked.
- A Master page which contains
- An ASPX web form page which contains
- A Web User Control inside the page which contains
- A button to fire some code in a button_click event
The Init Event will fire (Inner Most to Outer Most)
aspx.page Begin Init
-> Inside user control Page_Init
-> Inside master page Page_Init
-> Inside lifecycle page Page_Init
aspx.page End Init
and Load Event will fire
aspx.page Begin Load
-> Inside lifecycle page Page_Load
-> Inside master page Page_Load
-> Inside user control Page_Load
aspx.page End Load
Why does ASP.NET framework support different execution order in Load() and Init().This was the question asked in interview.I have no idea about what the interviewer expecting from me.
In S#Arch based web application I need to read some data during the application initialization. From the first point, the best place - HttpApplication.Application_Start() or HttpApplication.Init()But, Application_Start isn't applicable as there is no WebSessionStorage yet. Init() seems isn't fit as well, as there is no NHibernateSession.
View 1 RepliesI see from around in the 1.4.4 source that Autofac's ASP.NET integration (via Autofac.Integration.Web) peforms injection of properties on the Page as part of the HttpContext.PreRequestHandlerExecute event handling, but that the page's child controls don't get their properties injected until Page.PreLoad.
What this means, though is that the injected properties of child controls are unavailable for use in the OnInit event handler.
For example, this works fine:
HelloWorld.aspx:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="HelloWorld.aspx.cs" Inherits="HelloWorld" %>
<html>
<body>
<asp:Label runat="server" id="lblMsg" OnInit="HandleInit"/>.........
But changing the HelloWorld Page to a UserControl (.acsx) and putting the UserControl in another page doesn't work because _msgProvider isn't injected early enough.
Is there a way to make Autofac inject properties of child controls earlier?
Is it possible to debug the init event from a http module? If I set breakpoints, they don't get triggered.
View 2 RepliesI have a custom control with a UpdatePanel inside. Depending of user action or page programing I call Update method of my UpdatePanel to refresh html portion to user.
For example, I created a property called Title. If the Title change i call Update of my UpdatePanel.
[Code]....
But if the Title property is configured on aspx file, my UpdatePanel is always refreshed because my Title property is setted on Init stage of page life cycle.
I need to know if this property is setted on init stage or if ViewState is restored to avoid call Update, or any tips to avoid refresh my control everytime.
Web application initialization is as follows:
As we know when IIS receives the first request for a particular Asp.net application resource, IIS creates an instance of a HttpApplication (defined in global.asax codebehind).When this new instance is created it's initialization happens that also checks all configured HTTP modules.All modules are then instantiated and put in the application's Modules collection (of type HttpModuleCollection)modules are looped through and their Init() method is called (when they register for request events)
As far as I understand it the above scenario happens when a web application is started/initialized (hence application start event).What happens with modules?
Are they (re)instatiated on each request or reused from the Modules property on each consecutive request while the web application is alive? As I understand IIS and Asp.net they are reused through the whole life of a web application.
If they are reused, can we assume that their Init() method is actually a pseudo event handler for application start event? The thing is we can't attach to application level events within http modules. But if they are being reused we could use Init() as application start event and do whatever we'd put in global.asax instead.
Question,Can we assume that module's Init() method is called only on application start event? Could we use this assumption to i.e. register routes for applications whose global.asax codebehind we can't change? web.config is usually accessible and we can change it the way we want.Would this actually work?
Additional info,We can check HttpApplication code and check its InitModulesCommon() method. This one actually calls Init() of each registered HTTP module. What is more interesting is that this method is only used by InitIntegratedModules() and InitModules() methods. Which are both used only in HttpApplication.InitInternal() method. This is the basis of my assumptions, but I would like to know whether someone has abused IHttpModule.Init() for application start event.
im using a init function after partial postback again the init function is not calling.
<asp:ScriptManager runat="server" ID="MainSM" EnablePartialRendering="true">
<Scripts>
<asp:ScriptReference Path="~/JS/menu.js" />
</Scripts>
</asp:ScriptManager>
<script type="text/javascript">
menu.init("class");
</script>
this script works fine but after partial postback again this init function is not working. So i searched in google i found some articles regarding this [URL]
<script type="text/javascript">
function pageLoad() {
// Initialization code here, meant to run once.
</script>
this works fine when it was postback,but without postback this init function is not working
BreakPoint not working in Init, InitComplate, PreLoad events in ASP.NET page with C# in VS2008. But it is working for Page_Load event.
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void InitializeComponent()
{
this.PreLoad += new System.EventHandler(this._Default_PreLoad);
this.InitComplete += new System.EventHandler(this._Default_InitComplete);
this.Init += new System.EventHandler(this._Default_Init);
this.PreRender += new System.EventHandler(this._Default_PreRender);
this.PreInit += new System.EventHandler(this._Default_PreInit);
this.SaveStateComplete += new System.EventHandler(this._Default_SaveStateComplete);
}
protected void _Default_InitComplete(object sender, EventArgs e)
{
........
}
protected void _Default_Init(object sender, EventArgs e)
{
.........
}
protected void _Default_PreLoad(object sender, EventArgs e)
{
..........
}
}
I read this article first to try to solve this issue, but I am already loading the controls in the Init phase of the page, yet viewstate is not persisting. Any ideas as to why? (Of note is that this is for a custom module in DNN and I do have some AJAX update panels on the page, though this section is not within an update panel, for what it's worth.)
As an overview of what I've got:
1. LoadControl.ascx - based on reading query string parameters, determines whether to load the master or the detail .ascx.
2. Master.ascx
3. Detail.ascx
In my master control I dynamically load either a master or detail sub-control in the page_Init. The detail page has a treeview control and then uses a multi-view control to display the panel associated with the depth of the node selected on the tree. On the panel being displayed I have a cascading ddl within a detailsview control which initiates a postback to select the child ddl based on the parent ddl selection. However, when the page refreshes after the postback, both ddls have resorted to their default selection.
What is interesting however, and I just realized this as I am typing, is that the Treeview is populated when the page comes back from the postback, so that is only possible if viewstate is being persisted right? (See the page_load code and you'll see that Call PopulateRootLevel(intTreeUserID) which populates the treeview, is not called on postbacks....hmmm.
Any ideas as to why the treeview maintains viewstate but not my ddls???? But though the tree is populated, I do have to explicitly select the node again and set the panel that the detailsview control is on to visible again too....
Here is the dynamically loaded control code:
[Code]....
And in the Detail.ascx page load I've got:
[Code]....
[Code]....
When the user selects an "account" we dynamically create a linkbutton with the selected dates. However, the linkbutton onclick handler doesn't fire when the button is clicked.
Dim linkBtn As New LinkButton
linkBtn.Text = "blah"
AddHandler linkBtn.Click, AddressOf linkButtonHandler
linkBtn.ID = panelDatesRencontre.Controls.OfType(Of LinkButton).Count
panelDatesRencontre.Controls.Add(linkBtn)
ScriptManager1.RegisterAsyncPostBackControl(linkBtn)
Dim Trigger1 As New AsyncPostBackTrigger
Trigger1.ControlID = linkBtn.ID
Trigger1.EventName = "Click"
UpdatePanel2.Triggers.Add(Trigger1)
Answer: i make that in page_load, it seems to work
I am having trouble with a aspx page that when I click on the link to go to the page it opens/starts at the bottom. I want the page to open at the top like normal pages do.
View 9 Replies