I an using Session for storing UserName for whole project. But it always time out before 20 min. I want set value in properties and want to use in project but when my page is loading again its showing null value.
How can i save this value in this?
Code what i am using.
public string UserName {get; set; }
public string Password {get; set;}
which place(exact folder) the session & session id will be stored?
View 8 RepliesI have a class called EditMapUtilities. Here are some class properties that I want to persist:
public class EditMapUtlities
{
public static Boolean isInitialEditMapPageLoad
{
get { return SessionHandler.isInitialEditMapPageLoad; }
set { SessionHandler.isInitialEditMapPageLoad = value; }
}
// REST OF CLASS NOT GERMAIN TO DISCUSSION AND OMITTED
}
Here is my SessionHandler Class following the pattern from this post Static Session Class and Multiple Users:
using System.Web.SessionState;
public static class SessionHandler
{
private static HttpSessionState currentSession
{
get
{
if (HttpContext.Current.Session == null)
throw new Exception("Session is not available in the current context.");
else
return HttpContext.Current.Session;
}
}
//A boolean type session variable
private static string _isInitialEditMapPageLoad = "EditMapInitialPageLoad";
public static bool isInitialEditMapPageLoad
{
get
{
if (currentSession[_isInitialEditMapPageLoad] == null)
return true;
else
return (Boolean)currentSession[_isInitialEditMapPageLoad];
}
set
{
currentSession[_isInitialEditMapPageLoad] = value;
}
}
}
I am still learning OOAD. I want to keep relevant properties with relevant classes. I also want to keep all Session stored variables in one place for ease of maintenance and to encapsulate the session keys and calls. I feel like my design is too coupled though. How can I make it more loosely coupled? Is my editMapUtilities class too tightly coupled to the SessionHandler class? How would you do it better?
I am opening a pdf using reporting services. Is there a way to directly saving the pdf to desktop or some place directly without opening?
View 4 RepliesI have one AsyncFileUpload control ,one Attach button,one Listbox and Save button.
When Users browse the file and click the attach button, filename must be added to listbox. So in this way the user has the option to add upto multiple filenames to listbox. For this i have written the following code
[Code]....
this is source code
[Code]....
In Attach button click event i added the filename to listbox and saved the Asyncfileupload controls in different session variable.
When user clicks on save button all files has to be saved in application folder and for this i wrote the following code.
[Code]....
But iam unable to save all the files . Suppose i added two AsyncFileupload controls to session variables, only last file i,e. 2nd file can only be saved and couldn't get first file.
[Code]....
If I have a subroutine in codebehind called:
Subroutine1
and I store it in a session:
Session("tempSub") = "Subroutine1"
How can I then pull it out of the Session and call it?
something like this, but it doesn't work.
Dim tempSub as object = Session("tempSub")
tempSub()
Which would actually be subroutine1() if it actually worked.
I am getting a serialization error trying to use Session State Server instead of InProd. However, I can't figure out what is causing the error in session. I was given some code to add to the page to loop through the session object and figure out if each item in it is serializable. My problem is I don't know where to place the code in the ASP.NET page. In tracing through the code, the error just appears after steping through objects outside of the page and not when setting session. There must be some place that I can place the code on the page that is after all session objects are set but before the page will error. Where would that be?
View 2 Replies(I have a feeling i'm making a mental error thinking this is possible, because it seems too easy, but here goes)
For my intranet web app with 20 users on slow machines, the view state is slowing down their browsers.
But the network is local and fast. So I think to myself, why bother putting all that data on the user's browser?...Something like putting it in the database and then all the page needs to maintain is a unique key. But then I remembered that's how session state pretty much works.
QUESTION: Am I missing something or is this really possible?
I have created one class as Employee.
Then i created properties, as below
[code]....
and same properties to be used while retriving data from sql server.
We have to develop an application which has a Vertical left pane menu control which displays all the web pages (A,B,C say). Now if user is in page A and filled some data and clicks on menu control to go to page B, all the data in page A needs to be saved. Also if all the required field in page A are not filled and user navigated to page B, there will be one ! sign after the menu so that user can understand that there some some more fields need to be filled up.
We are planning to place the menu control in the Mater page. Please give me some direction to do this. My question is:
1. If user change menu (In Master Page), how should we save data?
2. How should we display the ! in the menu control?
I read the solutioin for this error, at the following link :http://forums.asp.net/p/1046935/1576341.aspxbut I am still not clear what exactly causes the error. I have two doubts :1. Can anyone please elaborate a bit on this issue, with any example ????2. Is there any drawback of this approach ?
View 4 RepliesI have an ASP.NET application that needs to remember some info about a user (and what company they are from) across pages, within a session. I imagine this is a requirement of just about any ASP.NET application of a certain size. I've used a few different approaches over the years. In the past, I've passed around an id in querystring parameters like so: [URL] and then instantiated the object on each page (from the database). Another common way of doing it is storing my objects in session variables:
Session["User"] = currentUser; // store at login
User currentUser = (User)Session["User"]; // retrieve on some other page
which saves a trip to the DB, but I worry about memory used if the User object is complex and the site has many concurrent users. I have recently inherited an application that uses public properties on the master page, like this:
Master.theUser = currentUser; // store at login
User currentUser = Master.theUser; // retrieve on some other page
This saves the cast, and looks more readable to me I think, but I don't know if it's better or worse performance-wise. It also has some logic in the getter where if the private value is null, it tries to get it from the Session variable, though I'm not sure if that's never used (or used every get!?) or what. My latest idea is to use my page class. I have a custom page class derived from the standard System.Web.UI.Page base class. It includes objects like CurrentUser as public properties. This seems to work OK. I like it even better. But I really don't know what's going on under the covers. Can anyone give an opinion on which approach is better and why?
Update: I've done some checking use trace.axd and Trace.Write and it looks like neither the masterpage version nor the custom page class version "remember" the values between pages. The "get" methods have a line of code that checks if the User property is null, and if so, reads it from the session variable. This happens when a page accesses the property (Master.User or the derived class's this.User) for the first time on a given page, then subsequent requests can get the value (without going to the session variable). So thus far the best solution looks something like this:
public class MyPage : System.Web.UI.Page
{
private User user;
public User User
{
get
{
if (user == null)
{
user = (User)HttpContext.Current.Session["CurrentUser"]; //check if session[CurrentUser] is null here and log them out if so?
}
return user;
}
set
{
user = value;
HttpContext.Current.Session["CurrentUser"] = value;
}
}
}
Then on any webpage.aspx.cs, you can do something like this: UsernameTextBox.Text = User.FullName;
is there any reason for me to place the session ID within a form, as a hidden form field?
View 3 RepliesI am building a Asp.net Application. I need to save a HashTable in a session.
At page load i am writing
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
Session["AttemptCount"]=new Hashtable(); //Because of this line.
}
}
Here problem is, when a user refresh the page, session["AttemptCount"] also get refreshed.
I want to know where should I declare
Session["AttemptCount"]=new Hashtable();
So that my seesion do not get refeshed.
EDIT In Global.asax, this session will get started, as soon as user opens the website. I want to creat this session only if user go to a particular page. i.e Login.aspx
Using Membership. How that when you first login Save user name?
View 5 RepliesI thought about saving all sessions variables to hiddens and then resaving those values back into session after I changed the web config..but there has GOT to be another way.
View 1 Repliesi was trying to save a checkbox value in session and display it in a new page.all other information i saved in session are textbox values. they are displayed correctly. but the checkbox value remain false for some reason. the form i made can send emails to user. checkbox value in the email is correct.
[Code]....
I am new to ASP.net and I am trying to save the state of some textboxes on redirect. I have a dashboard interface with drilldown. The main dashboard page has a date range option (textbox for both start date and end date) for the information displayed and I need to save the date range chosen by the user. I know that I can put the info into a session variable to use in the page that I am redirect to, but when I hit the 'go back' button on the drilldown page it returns to the main dashboard page and the textbox value is lost. I ahve also tried saving the viewstate, but could not get that to work either. What is the best approach to solving this problem?
edit: In case it matters, I am actually using the jQuery $(location).attr('href', url); to do the redirect because some of the chart objects I am using cover html or asp hyperlinks in IE.
I would like to know how to:
- Save an image into a Session Variables
- Get the image from the Session Variable and display it on the web page.
Here's the example on how to get the image from the DB:
string v_customer_code = "PAUL";
SqlConnection v_connection = newSqlConnection(ConfigurationManager.ConnectionStrings["SqlServer"].ConnectionString))
v_connection_string = "SELECT [Photo] FROM [customers] WHERE [code] = @CODE";
SqlCommand cmd = new SqlCommand(SQL, v_connection);
cmd.Parameters.AddWithValue("@CODE", v_customer_code);
[code]...
I want to place two datalist controls at the same (x,y) position. When the first is visible, second should be invisible.
How would I go about implementing this?
I want to save some info in the Session when the users successfully logins with my custom MembershipProvider, but I have no access to the Session in the provider's ValidateUser method.
public class CustomMembershipProvider : MembershipProvider
{
/* Override other methods and properties here */
public override bool ValidateUser(string username, string password)
{
/* do something to validate the username and password
* and set the validUser variable */
if (validUser)
{
/* want to store some info in the Session here, but I can't access
* it here, because this is not a Page */
}
return validUser;
}
}
I want to save the user_email and user_password in my website Session and clear it when loggin out but i wantg to know how secure it is to store passwords?
View 3 RepliesHow to save values of checked checkboxes..while navigating to other web forms in session variable..
View 5 RepliesI am building a simple search interface for one of our existing systems. I am using windows authentication. What I would like to do is grab the username of the logged in user via httpcontext.current.user into a session variable on page load and use it in various places on my page. My problem is that when i run my code in debug mode from visual studio it works fine. But when i try to run my code from the browser using localhost it does not work.
View 4 RepliesI'm going to ask a user to login first, then when I'm going to save information I'm going to have to save the information and associate it with the logged in user.How should I handle this with session?
View 4 Replies