Possible To Set DataSource Where Table Is In Session Variable
Aug 12, 2011Can I set up an ASP.Net datasource in the ASPX code as opposed to the code behind) where the datasource is a DataTable that's stored in a Session variable?
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[Code]....
However, how do I now access the OrganisationID property of an "Organisation" type session variable (called "Organisation")? I have tried this, which does not seem to work: <asp:SessionParameter Name="OrganisationID" SessionField="Organisation.OrganisationID" Type="Int32" />
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Jan 13, 2010----> I have datatable which is passing to another page in session variable.
----> Now on another page i take the session variable into datatable.
datatable ds_table = new datatable();
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DataSource Controls :: Session Variable Causes Cast Error?
Jun 23, 2010I get a casting error on line #8 below which reads "db.UserID = Session("UserID")". What would be the correct way to cast this? The datatype of the DB field is GUID.
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DataSource Controls :: Unable To Use Session Variable In Sql Select Statement
May 26, 2010 I am new to all this, and ignorant beyond compare. I believe I have the same problem as this :
[URL]. However, the solution proposed for him doesn't seem to work for me. I have a session variable that 'march_cpi_session' that I wish to include in an sql select statement to multiply the values I get from a datatable before they're used to populate a gridview control. The session variable works fine elsewhere in my application, but causes a variety (depending upon how I fiddle about with the syntax) of sql errors. This is the currrent code:
[code]....
How To Store A Value Into A Session Variable And Load From That Value Back From The Session Variable
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I am now having issues with my hosting where on shared application pool, the worker recycle is triggered every 90 minutes, this will clear sessions causing all my users to be logged out. I opted for a dedicated application pool, which got worse because I am only allocated 50MB memory limit and if this is reached, the worker recycle is triggered and I lose my sessions again. I have tried as much as possible optimization techniques, e.g. dispose where possible, close connections, disable viewstate for static controls etc but my memory per instance keeps building up from page to page without any signs of improvement. I don't use loops nor store huge objects like bitmaps etc but my sessions are now gone even faster than 90 minutes in shared application pool before.
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View 3 RepliesWhich Is The Best Usage Session Variable Or Global Variable
May 25, 2010I have the dataset. in this i am having total 20 tables with huge amount of data..I want use this data over all the page..so where i can keep this data..
before i used viewstate but the viewstate data is render to page every postback ..so this time the page size is increasing(interanlly viewstate is rendered to page)..so performence wise it was very slow..
Now i change my logic insted of viewstate to i used Globel Dataset on Page Level.. now the performence wise better than viewstate..
i used Like shared dsControls as Dataset at top of the page..so every time i use this dataset..
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1) checking at the page level that the value is valid not 0 when its not expected to be 0, not a zero-length string when its expected to have a length
2) have code at the page level that sets the values if the values have not been set as when the Session timeout, ideally putting the code in a class derived from Page and then deriving all of my pages from the new class so that the code does not have to be repeated in every page
[Code]....
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In Global Page:
[code]....
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I do not use Linq, and there is only one place in the whole web app that I place the connection string in a variable whcih is when a person logs in. It points them to the correct database. The sqlconnection is set for all of my listviews in Page_Init to make sure that they aren't using any session variable that they create on their own. Interestingly enough that if I use debug to go in each time, exit debug, enter debug again trying to access a different database, it works correct each time. I assume that debug is correctly killing the session variable for the classes for me.
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Jul 29, 2010I have some cascading dropdownlists using the ajax toolkit I have a set up datatables in an xsd file. Then use these in a webservice to populate all the fields ... this all works great but now i need to pass an additional paramter to the first dropdownlist ( a date) but don't know how to do this? The method is below...
[Code]....
The other code is:
[Code]....
The first change would be to the tableadapter to add a param to the code i.e
AuditWebDS.TeamsDataTable teams = teamsAdapter.GetTeams(calldate);
but how do i get the calldate param to the webservice method... i tried a session variable but it comes up with session is null ? Is there another better way?
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Jun 15, 2010I'm working on converting the TailspinSpyworks shopping cart Joe Stagner wrote in C# to VB using an evaluation version of VS 2010. I have the following public function:
Public Function GetShoppingCartId() As [String]
If Session(CartId) Is Nothing Then
Session(CartId) = If(System.Web.HttpContext.Current.Request.IsAuthenticated, User.Identity.Name, Guid.NewGuid().ToString())
End If
Return Session(CartId).ToString()
End Function
For Session in Session(CartId) I'm etting the following error: 'Session' is not declared. It may be inaccessible due to its protection level. For User in User.Identity.Name I'm getting the same error: 'User' is not declared. It may be inaccessible due to its protection level
DataSource Controls :: Variable Connection String Parameter In A DataSource Control
May 20, 2010I have several web forms which use a GridView linked to a DataSource control which is defined at design time as follows:
<cc1:pgsqldatasource
id="dsStates"
runat="server"
connectionstring="<%$ ConnectionStrings:PgSqlConnection %>"
oldvaluesparameterformatstring="Original_{0}"
providername="<%$ ConnectionStrings:PgSqlConnection.ProviderName %>" >
</cc1:pgsqldatasource>
As you can see, the connectionstring parameter is defined to a specific connection string name and I need to be able to set such a parameter to a different value, for example, to a session variable content.
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Nov 25, 2010I need to pass a table type parameter to a user-defined table valued function in SQL Server 2005.How would I do this?
My function name is udf_t_GetSales ( @financialYearMonthsData as table)
The table @financialYearMonthsData has 3 columns ( MonthId int, DisplayText nvarchar(500), CalendarYear int)
Two Different Users Seeing The Same Session Variable?
Dec 6, 2010It has been reported to me that a user logs into our web application and after supplying the correct credentials for themselves, are taken to the next page where they see a different customer's name at the top of the screen.
All the data at the top of our web pages is stored in session variables. The login page executes a Session.Clear statement in the Page_Load event. The user enters a username and password which is validated against our supplied database via an SQL statement. Once the user is proven to be valid, session variables are set to hold the Customer's name, as well as a few other details about them.
This is a fairly simple application, consisting of only of about 10 different pages. I am only tracking about 5 session variables per user. The session variables are initialized to either 0 or "" in the global.asax file in the Session_start routine. Upon clicking a "log out" link on any page, the login page is displayed again (executing the Session.Clear statement).
We have roughly 400 users logging into this site about once or twice a week each. The site is hosted on a server running Windows Server 2008 R2 Standard and IIS 7.
Of all 400 users, this strange session behavior has only been reported to me on a couple of occasions.
I have tried to duplicate this behavior and have not been able to. Has anyone ever heard of this? Where should I be checking for solutions? I have already checked my SQL statement and database for user authentication to make sure it is working correctly.
Subtracting From A Session Variable?
Dec 3, 2010I have a session variable with year stored in it and in my if condition I want to check if the current year is one less than the year in the session variable like this:
[Code]....
This isn't allowed though. It says operator '-' cannot be applied to operands of type object and int. How would I do this subtraction?
Session Variable Not Being Updated?
Apr 15, 2010I have a three step wizard. On the first step I use a repeater to create a series of buttons that an individual can select from. When the user selects one of the buttons the value of the button is saved to session state. They are taken to the next step and shown a similar list of buttons that are based on what they previously selected. Thus, if you choose "Hamburger" you might receive the options of "onion", "lettuce", "tomato" while if you choose "Hot Dog" you might receive "sauerkraut" and "ketchup".Lets say an individual chooses Hamburger. This is saved into session state like so:
Public Sub Button_ItemCommand(ByVal Sender As Object, ByVal e As RepeaterCommandEventArgs)
' ******** Lets pass on the results of our query in LinqDataSource1_Selecting.
Session("food_select") = RTrim(e.CommandName)
Wizard1.ActiveStepIndex = 1
End Sub
Now, this works fine and dandy. But lets say I select hamburger and then realize I'm really hankering for a hot dog. I go back to the first wizard step and click on the hot dog button but when the wizard progresses to the next step I still see the options for hamburgers! The session variable has not been updated.
Session Variable Getting Lost?
Sep 22, 2010Given this Global.asax.cs:
using System;
using System.Web;
namespace Foo.Web {
[code]....
User hits webapp and is shown Introduction.aspx
User continues using webapp for a few minutes (ASP.NET_SessionId: ublbhu45ji31e055ywqu0555)
User falls idle (doesn't perform any postbacks) for a few minutes
User performs postback
User is shown Introduction.aspx
Second inspection of user's ASP.NET_SessionId cookie still shows ublbhu45ji31e055ywqu0555
Why is the user shown Introduction.apsx the second time inside the same ASP.NET Session? I'm familiar w/ the risk in setting session variables just before a redirect in the same postback, but that doesn't apply here, right?