Web Forms :: HiddenField And Viewstate Not Accessible During Page_Init Method?
Nov 26, 2010
I have a GridView and a TabControl. On click on the row of grid, I store the EmpId in a hiddenfield in javascript. Now in Page_Init, I am trying to load a usercontrol for a EmpId stored in hiddenfiled. But I am not able to access hiddenfield value in the Page_Init. It display empty. If I have to load the usercontrol during Page_Init, then I have to access the HiddenField value first and it is give problem.
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Feb 1, 2010
I'm debugging right now and it seems the Wizard.ActiveStepChanged method is called BEFORE the Page_Init method?!?
I've tried it several times now.
If thats the case: what is called BEFORE Wizard.ActiveStepChanged?
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Feb 11, 2011
there is PagE_Load code block.Its okay.but If I add Page_Init codeblock, shoud Oninit method is necessary ?
protected void Page_Init(object sender, EventArgs e){
base.OnInit(e);
if so why ? and what may be problem if I wont add this line ? because If I add or not everything seems working.
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Jul 18, 2012
I am working on a really old site and the following line is causing an error
Code:
Dim newFile As FileStream = New FileStream(Server.MapPath(sSavePath + sFilename), System.IO.FileMode.Create, System.IO.FileShare.ReadWrite)
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Jan 4, 2011
I am using VS 2008. I am using Ajax Autocomplete extender to populate a textbox. usually there is a webservice method which populates data into the autocompletion list... but in my case, the data is coming via an instance method...
At the time of doing the autocomplete, the autocomplete calls the method, the data is getting lost in the page postback..My situation is such that I cannot use a static method to get data from database, since there is already a public instance method.I am using the technique of calling GetAutocompletionList without using a WebService method.
[System.Web.Services.WebMethodAttribute(), System.Web.Script.Services.ScriptMethodAttribute()]
public static string[] GetAutoCompletionList(string prefixText, int count, string contextKey)
{
// want to use static viewstate here ..
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Aug 3, 2010
can i read from the viewstate in the control render method ?
(because i read an article on msdn that said that after the preRender event is fire you can't read from the viewstate.)
and is the answer would change if i said that i am reading from the view state something that is not related to server control ?
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Sep 21, 2010
In one of my pages I use an usercontrol. The usercontrol has a textbox and a button on it. When someone adds text to the usercontrols textbox, I want to use the entered text in my page_init event. The problem is that in the page_init event, the textbox value is empty. How can I use the entered text in the page_init event?
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Jun 11, 2010
My code here:
[Code]....
When it runs, it successfully create a cookie thisVisit with today date as value.
However, when I reload the page, the cookie thisVisit becomes null.
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Oct 28, 2010
I am using a baspage class for my session checking by the following code
[Code]....
My rest of the pages are being inherited from above basepage class. but the problem is that all the pages inherited from basepage class are not firing the event Page_Init...?
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Jul 28, 2010
I have a gridview control with some linkbuttons in.
When the linkbutton is pressed, i want the ID value attached to it, to be usually in the Page_Init where i need to create some dynamic controls, based on this ID.
But since the linkbutton's click event, is fired AFTER the Page_Init, this is a little hard for me to do.
How would i go about doing this, if it is even possible?
The reason behind, is that the linkbutton refers to a calendar event. Once clicked, it will list the details, but it will also list any comments, users have submitted about it. The dynamic controls i need to create, are delete buttons for the comments, so an admin can remove offensive comments.
All done on a single aspx page, with updatepanels (visible toggles, and populating labels). I would like to avoid sending users to another page, with a horrible ?id=6 link.
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Jun 13, 2010
i was debugging a test page when i noticed that its init and load event handlers are being called twice.
i found out by search that this may arise due to some html tags which im not using in my page,
also some line:
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load,Me.Load
may cause this problem.
i use c# in the code behind aspx, if such line is the problem, in which file should i look for?
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Sep 23, 2010
I am having a problem with web pages in a .Net site where the Page_Init is firing on each postback rather than the normal behavior (Page_Init fired initially, and only Page_Load fired on postbacks)
Several comments:
1. AutoEventWireup is set to false on all pages, with a "Handles Me.Init" set on Page_Init. All events are defined with the "Handles" verb as shown below
2. Each web page is subclassed to a parent class which provides strongly-typed access to the contents of session variables.
3. The Page_Load event for most of the pages performs a DataBind operation on a gridview control.
Partial Public Class SamplePage
Inherits PageManager (PageManager inherits from System.Web.UI.Page)
Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init
...
End Sub
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Jun 11, 2010
I was working on something with Page_Init. I palce a break point and noticed the event is called twice. What happen was:
1) Page_Init is called
2) Page rendered on browser
3) Page_Init is called again
How do I find out what is casuing it to fire twice? Page_load is also firing twice and this is happening on IE.
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Dec 31, 2010
explain the diference between these Page_Init() and OnInit() events and when we should use which one?
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Jan 12, 2010
I m trying to load a new tab which should load WebUserControl2.ascx on button_clickbut I m coming across this eror: A Zone can only be added to the Page in or before the Page_Init event.I have a webpart in WebUserControl2.ascx which should load FeaturedControl.ascx.Well, i m getting the error when i click on button at :
Private Sub LoadTab2()
Dim uc2 As UserControl = CType(LoadControl("WebUserControl2.ascx"), UserControl)
tp2.HeaderText = "Tab2"
tc1.Tabs.Add(tp2)
tp2.Controls.Add(uc2)
End Sub
Where, tc is tabcontainer, tp is tab panel.
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Jun 15, 2010
I want to send some data to other pages using asp hiddenfields.Page1.aspx:
<body>
<form id="form1" runat="server">
<asp:TextBox ID="txt" runat="server">
[code]...
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Jan 10, 2011
[Code]....
[Code]....
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Mar 8, 2010
I would like to store an array of string or a List<string> in a Hiddenfield. You can c the code I am trying below :
public
int[] ListEmails{
get {
if (hdnEmailBody.Value.Length == 0)return
new List<string>();return
hdnEmailBody.Value.Split();
}set
{
hdnEmailBody.Value = ?
}
}
value;
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Sep 20, 2015
I am developing a application in which I return the value a it will fine it give me value during debug when I put cursor on .value it give me HiddenField1.Value 140 value but how I get this value into jquery code I will try a code but every time give me empty value means this value can’t assign to grid view following my whole code
var HiddenField1 = a;////////////////////////C# code where give me value of a
HiddenField1.Value = a.ToString();
My hidden field and Function to access the hidden field value
<asp:HiddenField ID="HiddenField1" runat="server" value="" />
Method to access the hidden field value in Jquery code.
var HiddenFieldcheck= $('#HiddenField1').val();
alert($('[id*=HiddenFieldcheck]').val());
but every time it give a empty value how I solve it ...
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Jan 15, 2010
i have a checklistbox that is databound during Page_Init in an
If (!Page.IsPostBack)
block. the user can then check off certain values, and click an asp.net button which posts back the form and renders a crystal report on the same page.
i need to be able to determine which items were checked in the control so that they can be used as parameters in the crystal report. rendering must be done during Page_Init.
the checklistbox object is on the page during design time; only the items are dynamic.
i tried using the Request.Form object during Page_Init to obtain the checkboxlist's items but either i didn't code it correctly or it can't be done that way...
can the checkboxlist items' values be obtained during Page_Init, and if so, how?
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Dec 17, 2010
I have been at this for two weeks now without any success but I know I have to get a solution to move forward with my design. Is there any way to bind data from a SQLDataSource to a Hiddenfield or Textbox WITHOUT binding via the data controls like gridview, formview, datalist, etc. I do not want to use any of those controls. I need to do inline binding. Please provide the working code example. The hiddenfield or textbox would be named eid. The SQLDataSource name is GetDataEid. Again, if you reply and you submit code I can try please provide the full working solution. These do not work. They have already been attempted:
<asp:HiddenField ID="HiddenField1" runat="server" Value="<%#Container.DataItem("FieldName") %>" />
<input type="hidden" id="hdnId" name="hdnId" runat="server" />
and write the following code in your page load method
hdnId.Value=yourDbValue.ToString();
asp:HiddenField ID="hid" runat="server" Value='<%#Eval("column name") %>' />
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Jul 19, 2010
<asp:TemplateField>
<ItemTemplate>
<asp:HiddenField ID="HiddenFieldTime" runat="server" Value='<%# Bind("Time") %>' Visible="False" />
</ItemTemplate>
</asp:TemplateField>
When I load the page, it shows up as a blank cell. Is there anyway to hide it completely as it looks out place?
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Feb 14, 2011
I have a hiddenfield in my mater page declared as:
<asp:HiddenField id="hf1" runat="server" value="0" />
I have a Page_Load subroutine in my vb codebehind file that sets a value for hf1 as folows:
Dim hf1Ref as HiddenField = Master.FindControl("hf1")
hf1Ref.Value = "test"
In my pageLoad() Javascript file of my master page I simply try to do the following.
alert(hf1.value);
I get "0" for the hf1Value.
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Sep 17, 2010
Im trying to figure out what the value is from a specific hiddenfield value when selecting a specific row in a datalist.....
I tried to find an example on the net....but today I seem to find all the wrong codes...
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Jul 19, 2010
my nested Grid Rowupdating Event is not fired., so i want to declare event in code., how can i do this/
[Code]....
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