State Management :: Serializing To File System To Maintain State?

Oct 25, 2010

I have a system that has several large objects that need to be built and populated each and every time, and these objects may be accessed quite often as well. As a strategy, caching would not be that good for me because there are potentially thousands of these objects which are fairly large. So I propose to serialize the objects to the file system and then deserialize it when I need those objects again. I have several classes that need this serialization functionality.

These objects change as well, so on the next access I check if there were any changes and then I grab only the changes and edit the object, and then reserialize the object.

My question is what is the best way to do this, since I have several classes ..

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State Management :: Maintain Page View State In Roundtrip Between Webpages?

Jun 15, 2010

I am having a ASP.net application it having three pages ,page 1,page 2,page 3,when the user navigating between this pages I want to maintain the view state in page level after postbacks(i.e.) .If a user visits page 3, passing some query loads some data .then he moves to page 1 doing some entries .after that he once again moves to page 3 now I want to display the data previously available at the time he moves to page 1, same
way I want to do to my three pages up to the user logging out.

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State Management :: How To Maintain State In Menu Control

Oct 12, 2010

I am working on vs. 2010. I have menu control in master page.

my menu having two pages default1.aspx, default2.aspx .

when user enter some values in default1.aspx page after click default2.aspx and enter some values

now if I click default1.apx page doesn't having values. but i want to maintain those values in my all pages .

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State Management :: Maintain State Of Treeview Across Application?

Mar 4, 2011

I am using a treeview in my master page and every node having link to its container page.That means click on any child node of treeview its redirect to another page by taking some value.

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State Management :: How To Maintain State In Html

Sep 24, 2010

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State Management :: How To Maintain User Log State

Mar 10, 2011

I have one web application. In that, I have two pages. One is view/edit page and another one is login page. The view/edit page contains one edit button and one login button.

First I execute view/edit page, at that time I dont want to show edit button. When user clicks login button, the page will be redirected to login page, where the user has to enter username and password. If user enters both correct, again the page will be redirected back to view/edit page. This time, the edit button has to be shown to make some modifications, since the user is authenticated.

I tried this thing by using session with cookieless. It works perfectly but some times it shows web page not available. I made session timeout 120 minutes and cookieless is true. In URL session ID also available.

So, whats the alternate way to maintain user log state or whats wrong in web.config file.

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State Management :: Maintain Master Page Control State On Load Of Content Page?

Dec 30, 2010

I have created a matser page with a two radio buttons, text box and a button. Whenever user sets some values to these control and clicks the button, i will navigating him from one content page to another based on the data he has entered. The problem is after the content page load, the values selected/given in the controls(radio button, text box) are getting cleared.

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State Management :: Losing Session State In Global.asax File?

Feb 2, 2011

I am trying to set a session variable in the global.asax file and keep running into the problem that the Session is null.

I am running my application in VS2008 and using asp.net 3.51.

Here is my code:

1. In my web.config file I have enabled the session state and added the following line;

<sessionState
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2. In the Session_Start procedure in the Global.asax file I set the session variable to a default value.

[Code]....

My problem seems to be that when the Application_Error procedure is executed the session state is lost.

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State Management :: Session State In ASHX File?

Sep 21, 2010

I have been trying unsuccessfully to retrieve a Session varaible from within an ASHX file that i'm using to build an XML file.

What I am trying to achieve is quite simple really.My ASHX file is used to dynamically build an XML file so that I can then bind it to a TreeView control later on. However the dynamic part isn't quite working because the ID that I need from the session seems to not be passed into the ASHX file.

I have tried using the following methods to do this:

1) Include interfaces IRequiresSessionState and IReadOnlySessionState

2) Tried accessing the value like this: Session["ID"] or context.Session["ID"] or HttpContext.Current.Session["ID"]

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State Management :: Set The Session State In Webconfig File?

May 11, 2010

I tried to set the session state in my webconfig file and got this error.. <sessionState timeout = "60"/>

Parser Error Message: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.

However if I tried to set it in anther aspx page it seems fine...is there a reason for setting up the virtual directory as an app in IIS ..what are the benefits of doing this, and is it always necessary?

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State Management :: Session Became Null - Maintain Data?

Aug 17, 2010

I have a requirement where i need to download mutiple files as a single zip file.There is linkbutton named HOME as well in the page. when this linkbutton is clicked it should redirect to homepage.aspx. I found a ICSharpCode.SharpZipLib.dll in net and used in my website. Here is the code

[Code]....

With the above code i got the expected result i,e. i can zip the files and save on client system. But the problem is after saving/canceling the zip file if user clicks on linkbutton in the page_load event Session[getdata] became null. there is no data in Session. what might be the problem? Actually it should redirect to homepage.aspx but its going to login.aspx because Session[getdata] is null.

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State Management :: Maintain Session On Of Users On A Webpage?

Oct 25, 2010

I have to maintain session of two users on a sigle page.And the path is. UserPath:

1.User logins with his credentials((We retrive their credentials from login table) .
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State Management :: Maintain Session Using Global.asax?

Dec 20, 2010

i dont know about Global.asax so give some information about it and also tell me about the implementation and use of session_start and session_end event. How to call Global.asax in our website.

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State Management :: How To Maintain Value Of Html Control After Postback

Jun 6, 2010

i use html form and html control to submit data,like bellow:

[Code]....

after submit,the input email lost it's data,how to keep it?

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State Management :: How To Maintain ViewState On Postback Of Textboxes

Apr 19, 2010

I have "n" <tables></tables> on my page and each <table> has One(1) <asp:CheckBox.. Enable ='true"/> and "x" <asp:TextBox Enabled="false"..>. Each Table looks as follows

[Code]....

When I click checkbox, it calls javascript function and enables textboxes (I have added onclick attribute to checkbox). Page also has <asp:Button ...Text="Submit"/> whcih actually grabs the data from the textboxes on the page and send it to the databse. Here is the Onclick event of the <asp"button../>

[Code]....

If the exception is thrown , textBoxes are not reset but on postback textboxes appear as disabled (values are not reset)

So here is what happening on postback when exception is thrown

1) Values are not reset (that is what want)

2) Texboxes appear as Disabled (that is what I don't want on exception, REMEMBER I enable textBoxes using client side script)

How can I keep the textboxes enabled = "true"

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State Management :: Web Controls In Collapsible Panel Does Not Maintain Viewstate?

Jul 23, 2010

I have a search page containing a collapsible panel with several controls including text, radio, drop list and check box. In the same page there is a gridview to display search result and links to other pages.Everytime I click on a link in the gridview, the viewstate is only maintained if I nevigate with the pagination of the gridview. However if I click on a link in the gridview and click the back button to the search, everything goes back to default, and the search results will be gone from the gridview. How may I enable the controls and the gridview to remain the same if I hit back button to it?

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State Management :: Application State And Session State?

Oct 2, 2010

User Interface: 2 Labels; 1 Buttons

Requirements: Create a Web Page in ASPx that will do the following:

1)One label will provide a count of how many times Button 1 has been clicked in the current session.

2)One label will provide a count of how many times Button 1 has been clicked by all users of the application. The Application Code for the Button should start at 100 (set this in the Global.asax file). this is what i have so far but i cant seem to get the application state to work properly.

aspx.vb

Partial Class _Default
Inherits System.Web.UI.Page
Dim clickcount As Integer

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

If Session("ClickCount") Is Nothing Then
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End If
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If Request.Cookies("UserName") IsNot Nothing Then
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End If
End If
Dim clickCounta As Integer = CInt(Application("ClickCount"))
End Sub
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clickcount += 1
lblClkCnt.Text = "Current Click Count is " & clickcount
Application.Lock()
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Application.UnLock()
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Dim nameCookie As New HttpCookie("UserName", _
TextBox1.Text)
nameCookie.Expires = Now.AddYears(1)
Response.Cookies.Add(nameCookie)
End Sub
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Session("ClickCount") = clickcount
Application("ClickCount") = clickcount
End Sub
End Class
global.asax
<script runat="server">
Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
Dim clickCounta As Integer = CInt(Application("ClickCount"))
Application.Add("ClickCount", 0)
End Sub
Sub Application_End(ByVal sender As Object, ByVal e As EventArgs)
Dim clickCounta As Integer = CInt(HttpContext.Current.Application("ClickCount"))
End Sub
Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
' Code that runs when an unhandled error occurs
End Sub
Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs)
End Sub
Sub Session_End(ByVal sender As Object, ByVal e As EventArgs)
End Sub

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AJAX :: File Upload Control Does Not Maintain Their State After Post Back?

Jan 24, 2011

I am using file upload control and the captcha.After fulfill the form and upload the file , if user enter the wrong captcha test and click on button the uploded file being disaaper .I know this is the shortcoming of file upload control but client required thatIt needs to not clear the photo Plz help me out so that i can maintain the uploaded file state and have to capable so that user does not need to uploaded file again.

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AJAX :: Maintain State Of FileUpload Control And Preserve File Across PostBack

May 7, 2015

My <input id="FileUpload1" name="FileUpload1" type="file"> and country dropdown both are inside update panel , now on selectedindexchanged it do postback , which i am triggering in update panel to avoid page refresh .

Now the problem is when i select any image in fileupload and then select country , my selectedimage vanishes but its path stays in textbox .

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Session State Expiry In Content Management System

Feb 16, 2010

I am creating a content management system but there is one problem. What I want to do in my website is that when a user opens the website a new sessionid is created for that user, and when the user closes the website, the sessionid is cleared. How can I can do it?

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State Management :: Where Is The System.Web.Caching.Cache Actually Stored

Nov 25, 2010

I am using this to store my user information for authentication. I'd like to know where this is actually being stored? I know that people suggest to store the Session state in SQL. Is this necessary for the Cache as well?

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State Management :: Update Database When The System Shut Down?

Sep 17, 2010

I want to update the User LoggedIn Status to 'False', when the system shut down by light problem, or when the user click the 'Browser Close Button'

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State Management :: System.Web.UI.ViewStateException: Invalid Viewstate?

Oct 15, 2010

I had to switch to

sessionState
mode="StateServer"
timeout="30"/>

[code]...

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State Management :: System.Web.HttpContext.Current.Items Not Working?

Jul 21, 2010

In a page (not default) I have:

Protected
Sub Page_Load(ByVal sender
As
Object,
ByVal e
As System.EventArgs)
Handles
Me.Load
Try
loginRep = BusinessLogic.SR.GetUserName("99999")
System.Web.HttpContext.Current.Items.Clear()
System.Web.HttpContext.Current.Items.Add("RepId",loginRep)

I don't any errors and when in the run in the immediate window:

? System.Web.HttpContext.Current.items("RepId") in the immediate window on THAT page I get the OBJECT.

Then I have a hyperlink with navigateurl to the next page "~/ActCnt.aspx"

On that page, ActCnt.aspx, when in the code I have:

Protected
Sub Page_Load(ByVal sender
As
Object,
ByVal e
As System.EventArgs)
Handles
Me.LoadIf
Not Page.IsPostBack
Then
Dim loginRep
As BusinessLogic.SalesRep = System.Web.HttpContext.Current.Items("RepId")

In the immediate window ? System.Web.HttpContext.Current.Items("RepId") returns a String that is equal to "RepId".

Even if I change it to not be an object, but a string I only get the Name "RepId" of the keypair. I have NEVER gotten the actual value.

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State Management :: Session Variables Become Null When System Time Changes?

Jun 15, 2010

I need to refresh my webpage in case of a change in the system time. However I see that my session variables are becoming null when the system time changes. So I cannot perform the refresh action since my webpage requests a login.I am not setting the Session variables to null explicitly anywhere in the code. I can't seem to figure out how they are becoming null.

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