473,799 Members | 3,005 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

in LoadViewState() : ViewState is empty after page reloads the 2nd time

Hi,

I have a Webform with 1 submit button and 1 label

code behind :
public class MainWebForm: System.Web.UI.P age
{
protected System.Web.UI.W ebControls.Labe l lblFName;

protected override void LoadViewState( object o )
{
lblFName.Text = (string)ViewSta te["FName"];
}

protected override object SaveViewState()
{
ViewState["FName"] = "Enter First Name Here";
return base.SaveViewSt ate();
}
}

Upon loading the page the first time
- LoadViewState() is not executed yet : OK
- SaveViewState() event is executed and saves a value in
the ViewState-object :OK

Page is now displayed with an empty label : OK

Upon pressing the Submit button : page loads a second time
- LoadViewState() is executed and ViewState["FName"] is still empty ????

Why ?

Thanks

Chris

Nov 17 '05 #1
0 1450

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

0
1101
by: | last post by:
hi, Im trying to use below code in three.ascx which is pasted on two.ascx page and two.ascx is pasted on one.aspx page. But "LoadViewState" gives exceptions mentioned below protected override object SaveViewState() { object SaveState; SaveState = new object; SaveState = this.chkItem.Checked; return SaveState; }
0
1805
by: Christian | last post by:
Hi, I have a Webform with 1 submit button and 1 label code behind : public class MainWebForm: System.Web.UI.Page { protected System.Web.UI.WebControls.Label lblFName; protected override void LoadViewState( object o )
5
5300
by: William F. Robertson, Jr. | last post by:
I am having difficulty in diagnosing this problem and was throwing it out for some other eyes. I have derived my own Page class from System.Web.UI.Page and have overridden the LoadViewState method. I derive all of my application pages from my own Page. For some reason on two of my pages the LoadViewState derived method is not firing and thus not setting up some of my controls on the page. On the other 240 ish pages, the...
2
3486
by: Devin Fensterheim | last post by:
Does anyone know of an issue with a control's viewstate not persisting when dynamically adding custom controls to a web form using AddAt? If a control is added to an HTML form directly using the HtmlForm's AddAt method (per the below code segment), then LoadViewState is never fired for the control, even if SaveViewState, which is fired, saves to the control's ViewState. However, if Add is used instead of AddAt, LoadViewState is called...
0
1513
by: Ferret | last post by:
I've found what seems to be a nasty bug in the DataGrid and Repeater classes. If CreateChildControls gets called before LoadViewState, ViewState fails to map and you end up with nothing on a Postback. Please try the following test, and let me know if you can reproduce this: - Create a custom DataGrid or Repeater class that does nothing but derive from one of the above and gives a place to put breakpoints in overriden handlers - Create...
6
1926
by: Nergal | last post by:
LoadViewState is taking a long time on a page, the bigger the dataset the longer the wait and also it takes longer on remote server than local host. EnableViewState is FALSE and when I examine the viewstate size for the datagrid in trace it is ZERO. But the view state string is very long :| What the heck is going on here ? ViewState gurus neeeded.
0
2143
by: Anand Saha | last post by:
In case you are creating your own control dynamically and need to re-create them on LoadViewState, only to discover that this function is not being called by the framework, reason and solution is this: The LoadViewState function is called by the framework only when the viewstate object is not null (pretty reasonable). In the above scenario, SaveViewState might not need to save anything in the viewstate object, leaving the...
2
3030
by: Jman | last post by:
I have a selection window, here are some dropdownlist if i click on an item in a dropdownlist the page reloads itself an puts the selected item in a textbox. Then i can search on the value in the textbox. The values in the dropdownlist is variable. In one of the dropdownlists there are lots of values and my viewstate is very large. My page is almost 3 mb. This is way too much to load every time. I can not set my viewstate to false because...
0
1909
by: John | last post by:
I am loading my controls dynamically into my asp.net page. When I click on a button on one of those user controls then page reloads and I need to reload the page based on what has happened in the button click. Problem is that the button click is the last thing to fire so I need to reload the page a second time to update the controls based on the logic in the button click. The second time around the page loses its viewstate which stores...
0
9541
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
10482
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
1
10225
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
1
7564
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
6805
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
5463
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
1
4139
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
2
3759
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
2938
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.