As far as I know if you want to dynamically add controls it should be done on Pre_Init event.I tried to add them on Page_Load and it still works. Controls restore state after postpack, everything looks all right.Is it always like this?(because for me it's easier to use Page_Load event, because it is fired from outermost to the innermost control)
View 12 RepliesI have a simple .ascx file
<%@ Control Language="C#"
AutoEventWireup="true"
CodeFile="Profile.ascx.cs"
[code]...
I have a page with four panels. On page load all the panels are visible. there are radio buttons YES and NO. i have written java script such that if YES is clicked, certain panels are displayed and if NO is clicked, other panels are displayed.Now my problem is, on page load i dont want all the panels to be visible. If i use <control>.visible = flase on page load for those panels, java script is throwing error "Object Missing" when those radio buttons are clicked.
View 2 RepliesI'm creating a table with some controls and I want to save all control values in every postback. As the controls are just defined after the page_load, I can't solve my problem this way:
object o;
protected void Page_Load(object sender, EventArgs e)
{
o = createObject();
Create_Table();
if (Page.IsPostBack)
Save_Data();
}
I thought I could execute Save_Data() at the begining of every postback event, but I think that should exist a better way to solve my problem.
In a project of mine I dynamically create controls and add them to the nodes of a radtreeview (a control by telerik) in theLoadViewState event. By the end of this event everything seems fine, but as soon as the
Page_Load event fires the controls have disappeared. No code of mine is executed during this phase.
I'd love to know why this is the case,
I have a formview and I want to fill it at page_load. The formview must show the data of the person that has logged in.So the question is how can I fill the formview so that is shows the data of the right person (UserId = @Param2) so that the formview is in editmode?
[Code]....
At first, I had my datalist being populated by my class 'PM' - I did it all inside the Page_Load event. Since there was a dataset being returned, I could assign different variables to fields in the Datatable, like:
[Code]....
Now, for reasons I won't go into here, I'm changing to an ObjectDataSource, using the same method to do the 'Select' of data... How can I do the same variable assigning, with the ObjectDataSource?
I have a GridView that binding on Page_Load, and that is not the intent. Ideally, the GridView only loads on PostBack.
[Code]....
[Code]....
The bindClientDropDownList, by the way, does not call SearchResultsGridView.DataBind() on its own, so that can be ruled out.
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
[Code].....
I want to automatically call the gridview's selectedindexchanged procedure on the first page_load event.
Can someone show me how this is done in C#?
I'm trying to do a relatively simple thing, but just cannot get it to work. I'm trying to find a dropdownlist within a ListView ItemTemplate within Page_Load.
This is the code
[Code]....
And this is the C#
[Code]....
I have also tried without this > this.ListView1
In my table there is no record then I'm going to hide my formview fields on page_load event,
it gives an error "object reference not set to an instance of an object".
How can I hide fields in formview all mode?
I have a set of 4 buttons which part of a gridview template and I load the gridview on page_load. The datasource for the gridview comes via my controller as I am using Microsoft's Model View Controller design pattern. I set 4 public properties for each of the 4 buttons, which I can access in my controller class/method. However, when I call the method for the gridview, which sets the datasource for it on page_load, I get an error message when I try to set the enable to false. It says "Object not set to instance of object". The objective I am trying to do here is a check on a returned value, which I can achieve, and based on the return of the value that is returned, to either set the button enable to true or to false.
Unfortunately, I am getting this Object not set to instance of object error message, and I do not know how to resolve it.
I have discovered something strange when using a ListView. I have a listview contained inside an uodate panel and everything works OK until I edit the editItemTemplate to use a LinkButton instead of a Button.When i use a LinkButton then the Page_Load event is fired.
View 3 RepliesI'm trying to throw the exception back to Page_Load but the throw statement causes error: ArgumentNullException was unhandled by user code. How can that be fixed? Also, I can't see Label1.Text displayed on the page after the ArgumentNullException occurs because the page is not re-load. If there is no exception, it's fine to not reload the page. How can I see the Label1.Text displayed?
protected void Page_Load(object sender, EventArgs e)
{
try
{
...do something here...
}
catch (ArgumentNullException ae)
{
System.Diagnostics.Debug.Write(ae.Message);
Label1.Text = ae.Message;
Label1.Style.Add("visibility", "visible");
}
catch (Exception ex)
{
...do something here...
}
}
protected void ImageButton1_Click(object sender, ImageClickEventArgs e)............................
This is probably a really simple question, but I'm looking for a way of running a particular script on my website which will be ran every time a page is loaded. Basically it to work as if the script is in every .aspx Page_Load of my project.
I tried putting the script in the Application_Start event of the Global.asax file, however I noticed this didnt always run.
I need to do HTML code manipulation for every loaded page in my ASP.NET application. Where is the best place to put my method? Put code into every web page Page_Load event in not very smart, what other alternatives?
View 4 RepliesI have a class named PageBase inheriting from ASP.NET Page. I want to do something in PageBase's Page_Load.All pages in my application have their logic done on their Page_Load. I'm thinking of a way that Page_Load of both of PageBase and other pages run without having to override Page_Load in pages. Is it possbile?
View 1 RepliesWhy DisplayUsers(); doesn't work?My base page is:
public class adminPage : System.Web.UI.Page
{
protected override void OnLoad(EventArgs e)
[code]...
I've seen programmers writting in Page_Load like
protected void Page_Load(Object sender, EventArgs e)
{
if(!IsPostBack)
[code]...
I have a page with a FormView on it. The page is strictly for adding records to a Table. I have the FormView bound to an EntityDataSource and everything works greate except for one thing.
I want to initialize a date field in the FormView to today's date. So, in my page_load event I have:
if (!Page.IsPostBack)
{
//Initialize SetupDate to today.
TextBox setupdate = (TextBox)fvJob.FindControl("txtSetupDate");
setupdate.Text = DateTime.Now.ToShortDateString();
}
The first time this page loads, the txtSetupDate field is initialized.
Although, and subsequent loads of the page doesn't initialize the Text Box. I step through the code in the debugger and I can see that the code is executig, but something (the FormView bind?) is "clearing" the Text Box.
I have a image file upload page, a zip file is uploaded and unzip on server, then all image files are read and insert into SQL server.
I want to show a message just after processed one image file, image filename, success or failed, then process next image file until finish.
What can I do?
I am having a problem with FireFox, I have an app using VS 2008 and it is using a Wizard control. Under IE the app only runs Page_Load once but FireFox is running it twice which would'nt be a big deal except the second time it is not going through as a post back so all of my setting are getting reset as if it was the first time through. I have see in previous post that the problem was autoEventWireup needed set to False, well mine is. I am using Ajax and UpdatePanel.
View 3 Repliesasp.net 4.0 vs2010
I'm developing an asp.net model -view-presenter (MVP), and to my surprise i see that when I click on the linkbutton in the window the Page_Load event is fired again. Is that normal? I'm used to webforms where we could just do a if (!Page.IsPostBack) if statement in the Page_Load. I did that but then no action happend when I clicked the linkbuttons in the window.
i have 1 master page with 5 pages that call it. now on the master page, I have few dropdowns and textboxes, and the calling pages only have a small article in the corner. I want to start a session on page_load event, so that if the user chooses to select a dropdown or put data in textbox, even if he clicks on the other 4 links of other pages, the data should stay.
View 1 Replies