Unexpected Behaviour Of Object Stored In Web Service Session?
May 7, 2010
I'm using Session variables inside a web service to maintain state between successive method calls by an external application called QBWC. I set this up by decorating my web service methods with this attribute:
[WebMethod(EnableSession = true)]
I'm using the Session variable to store an instance of a custom object called QueueManager. The QueueManager has a property called ChangeQueue which looks like this:
[Serializable]
public class QueueManager
{
[code]...
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Jun 24, 2010
After login, user get redirected to other page than destination page.actually i used asp.net2.0 login control and there set a destinatuion page url but after login user get redirected to same page or home page.
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Jun 2, 2010
First of all, here comes the load part.
Structure MainStruct
Dim Ans1 As String
Dim Ans2 As String
End Structure [code]....
The question is how can i read back the contents of the list, stored in the Session?
I mean something like...Build = Session("MyData")
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Mar 23, 2011
I have a web site coded with VB + MS Access database (VS2010). I'm using one MasterPage to manage both public and users area. I'm facing loss of session variables when a user is logged in. I can't figure out what is wrong and I need your help, tips and tricks.
When a user is authenticated (thru the Login.aspx), I create a SessionID, store his credential in session and load user's page by Response.Redirect(~/users.aspx). Here is what I did:Code:
Dim MyLink As String = Session.SessionID & "other variables"
Session("MyLink") = MyLink
FormsAuthentication.RedirectFromLoginPage(TextBoxEmail.Text, False)
Response.Redirect(~/users.aspx)
My logic is this: when the web site is launched, MasterPage + Default.aspx load. So Session("MyLink") is empty. If the user's credentials are correct, I create the session so that it can be available for MasterPage.
In the code behind of the MasterPage, I try to check (everytime a link is clicked/page requested) whether the user session (SessionID, credential in session) is available. If so, the user is still logged and get access to all the menu. If no session is available, it means the user is logged out or not logged in yet and few menu are shown. Here is the code
Dim MyLink As String = Session("MyLink")
If MyLink Is Nothing Then
'Only show MenuPublic
[code]....
My default menu is:MenuPublic1, MenuPublic2, MenuPublic3
When a user is logged in, I add to the MenuPublic some reserved Users' menu like below.
MenuPublic1, MenuPublic2, MenuPublic3, Menu_Users1, Menu_Users2, Menu_Users3
In local, everything works perfectly fine. Now after hosting my website, from time to time the MasterPage loss the Session variables. When it happens, the page still shows that the user is logged in by displaying Logout and Welcome Username beside it.
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Jul 31, 2010
i am using paging technique from this tutorial [URL] and it is working fine, i used asp.net 2.0 with sql server 2005 then i upgraded to visual studio 2008, and converted the asp.net 2.0 application to 3.0 and now using sql server 2008 all the existingpages and .xsd files are working, fine, i can see data in .xsd files when i preview it but i cannot add new stored procedures it gives me an error "An unexpected error has occured" Error message:unexpected error i dont know what it is, already configured dataset (.xsd) works fine, it is just that iam unable to add stored procedures to new datasets my connection string
<add name="jobcon" connectionString="Server=HOME-46CTBUROCXSQLEXPRESS; Database=jobdhundo; User ID=; Password=;Timeout=200; Trusted_Connection=True" providerName="System.Data.SqlClient"/>
it is fine with the entire application there is no coding involved
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May 3, 2010
which place(exact folder) the session & session id will be stored?
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Aug 30, 2010
I've scenario where I want to insert data into database without post back. there are around 12 to 13 fields which i need to insert. I'm passing DTO from the client side which is actually Json object. Now the problem which i'm facing is how to convert that Json object which i got in webservice to the "class" (in my case class name is User) object.
[Code]....
In the above case AddNewUser method takes the object of User class. But i'm getting casting error. So how do I convert Json object to the "User" class object?
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Jan 15, 2010
I could really use some help on this one. I've been fighting it now for several days and we are supposed to start testing early next week.I am subscribing to 4 web services all hosted by the same company. The integration with 1, 2 and 3 all went fine, but on the fourth I keep getting the very unhelpful error:
System.Web.Services.Protocols.SoapException = {"Server was unable to process request. ---> Object reference not set to an instance of an object."}
[code]...
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Sep 29, 2010
I have the following code:
[WebMethod]
[SoapHeader("_webServiceAuth")]
public User GetUser(string username){
try
{
this._validationMethods.Validate(_webServiceAuth);
User user = new User(username);
[code]...
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Mar 19, 2011
Is it possible to use mixed cookieless sessions with cookie sessions? I've an application that captured user details and then redirect for payment to an ssl page. I was wondering if this is possible? [URL] redirects to [URL] Note: the session Id in the latter url. So in essence, we use the standard cookie session for the majority of the application but when we transfer to an ssl page we pass the SessionId to the https url to pick up the session. I've tried this locally but it starts a new session.
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Nov 15, 2010
In the VS2005 environment, when I test my session to make sure the page redirects to the main page (itself) if the session is null, it works. There is no error.
The function I use for this is:
[code]....
However, when it is in the production environment in IIS 6.0, when the session has timed out, and I then do a postback by doing some slider control, I see the page reload but immediately thereafter, it throws a Server Error exception of : Object reference not set to an instance of object.
Looking at the stack trace, the event occured:
AJAXEnabledWebApplication1._Default.Slider1_TextChanged(Object sender, EventArgs e)
however, why is it that the Slider1_TextChanged event fired even even after during page_load, the page was told to do a response.direct ?? shouldn't the entire page have gone through a full-page refresh life cycle ? why did it continue on to attempt to raise the Slider1_TextChanged event?
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May 7, 2015
I am getting object refernce error at line:if (Session["Tax"].ToString() == "9")
protected void Page_Load(object sender, EventArgs e)
{
if (Session["Tax"].ToString() == "9")
{
lblTax.Text = Session["Tax"].ToString();
}
else
{
lblTax.Text = "0";
}
}
Is anything wrong I have done?
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Jul 20, 2010
I am confused about how to reference objects in session, how to update, and copy.
if I create
MyObject obj = new Object ();
then
Session["object"] = obj;
MyObject temp = (MyObject)Session["object"];
If i change something on temp, will the object in session be updated? do i need to follow changes with Session["object"] = temp?
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Oct 7, 2010
I want to be able to persist data across a session but do this outside of the built-in session state object. Why is a long story that I will not go into here. I just need to know where I can put data other than in the session object that will persist across the specific session.
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Jun 19, 2010
I have this problem when trying to read a session in another asp.net page.
Object reference not set to an instance of an object.
If Session("cne").Equals("") Then Response.Redirect("Default.aspx")End If
I'm setting the session in the Default page with this code :
Session("cne") = cne.Text
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Dec 17, 2010
I am getting thid error Object reference not set to an instance of an object. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object. Source Error:
Line 18:
Line 19: <%
Line 20: string thedate = Session["indate"].ToString();////;;;;????
Line 21: Response.Write("Starting SAS");
Line 22: try
Source File: c:Documents and SettingsAdministratorMy DocumentsVisual Studio 2008WebSitesWebSite1SASrun.aspx
upload.aspx
<%@ Page language="c#"Debug =true Codebehind="upload.aspx.cs" AutoEventWireup="false"
Inherits="Stardeveloper.UploadAccess.UploadForm" %>
<script runat="server">
void Button2_Click(object sender, EventArgs e)
{
Session["indate"] = Request["txtDate"];
Response.Redirect("SASrun.aspx");
}
</script>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<html>
<head>
</head>
<body>
<body style="background:#80B584">
<form runat=server>
<a href="default.aspx"><b>Main Page</b></a> · Upload Files
<div id="message" runat="server" />
<table align="left" border="0" cellspacing="0" cellpadding="3">
<p style="font-family:arial;color:White;font-size:20px;">Upload new files.</p>
<tr><td><b>MTMDetailed:</b></td><td><input type="file" class="stdInput" name="uploaded_file1"></td></tr>
<tr><td><b>File TRI_FP:</b></td><td><input type="file" class="stdInput" name="uploaded_file2"></td></tr>
<tr><td><b>indate :</b></td><td><input type="text"id="txtDate" name="inputdate"/></td></tr>
<tr><td align="right"><input type="submit" value="Submit"></td></tr>
<asp:Button id="Button2" runat="server" Text="Submit" onClick="Button2_Click" />
</table>
</form>
</body>
</html>
This is part of the code where error is coming from................
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Nov 22, 2010
I tried to add a stored procedure to my already group of procedures. For example, I have link_delete, Link_insert, Link_update I need a way to insert a link and this must relax the constraints: I tried to create a Link_insert2 and the thing is underlined in red saying Invalid Object in my query window. I basically renamed the existing Link_Insert stored procedure and added the line:
ALTER TABLE tblLink DROP FOREIGN KEY FK_tblLinks_tblWebSite
because my program is not able to write to the table unless I do this. I was going to just forget the stored procedure altogether and use a sub which I did and is writing a row. It is not returning the SCOPE_IDENTITY however, and I must get that. Can someone tell me how to get that?
[Code]....
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Dec 4, 2010
fetching data from 2 tables in one Stored Proceure..what's wrong with the SP below ?
Its giving error as "Msg 208, Level 16, State 6, Procedure sp_GetID, Line 9
Invalid object name 'Admin.sp_GetID'."
ALTER PROCEDURE GetID
(
@ID int [code]....
I am altering a previously made procedure...All I changed was ..I added the second SELECt statment...just that...otherwise SP was executing
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Jul 27, 2010
The Setup:Account controller with the typical logon / logoff stuff that comes baked in from the template. Not much modification here on the logon page. Using a custom membership provider (SQL), but I don't think that is impacting what I am trying to do here.The Requirements:The client wants to handle licensing by limiting concurrent users and not by total users. So, after referencing this post here, I set out to make this work for what I need to do. And that is to track maximum and current users for each organization that has signed up for our application. No problem, just have an application("max") and application ("current") which are both hashtables with the key being the organization id and the value being current or max users for the organization. On Session_Start, I would increment the current users, check if it exceeds max and either a) redirect to an error page or b) let them go on with what they need to do. On Session_End, I would decrement the count.
The Problem:When using formsService.signIn, what is actually stored in session? I cannot seem to gather any information about my session in the session_start except for the session ID. So, I cannot increment the correct number for user tracking. And I cannot add a variable to session as session_start will have already fired before I get the opportunity.
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Mar 12, 2010
I have stored the datasource of my datagrid in a session
Session["datagrid"]=dataSource.ID;
On retriveing I am setting the gridview datasource to the session.
resultgrid.DataSourceID=Session["datagrid"].ToString();
resultgrid.DataBind();
But I am not getting anything on the page.
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Apr 4, 2011
keeping 1000 records in a datatable in session and do paging using that?
Or
doing paging in stored procedure level and requesting 35 records each time?
more info:
datatable of 40 columns
number of users is 200 users
7 application are running on IIS
Oracle DB server is not the same server for IIS
Edit: the user may update a row, and submit it to database. which will refresh the grid by requesting the whole data from database.
Edit2: Every user is loading different datatable which coming from same table in database
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Feb 24, 2010
im having some problems with jagged arrays stored in session for ASP.net i have some code which creates a jagged array, them populates, and then stores this populated jagged array into session
protected string[][] answersJArray;
answersJArray[0] = new string[4]("test","test1","test2","test3"};
answersJArray[1] = new string[4]("test","test1","test2","test3"};
Session.Add("answersJArray", answersJArray);
how would i loop through each jagged array in the session ?? if they were not in session i no i could do the following
for (j = 0; j < answersJArray[1].Length; j++)
{
label.Text = (answersJArray[1][j].ToString());
}
how would i do the above by looping through the session ??
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Nov 1, 2010
This is a really strange problem for something that should be simple.I'm storing a URL - which contains search strings - into a session so I can create a 'back to search' link on the item page. It works in Firefox but in IE it only brings back the URI without any parameters
[Code]....
and then to read it...
[Code]....
In Firefox I get the full URI but in IE it only returnshttp://localhost:6666/Search/Default.aspx
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Jun 1, 2010
ALTER PROCEDURE insertdetails2
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Jun 10, 2010
I have several stored procedures in my database, some of them have params, some have no params. I tried to fill a business object by calling the stored procedures, but failed so far. How could I do that dynamically? Later, I want to use this object as a datasource for a report...but thats the next step. The important facts are:
different stored procs return different amount of columns stored procs can have params, but its not required
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