asp.net

How does .NET session handling work? Sessions eat up all memory if cookies are disabled.

Hi, In my project I have configured .NET's sessions to go into database. I also have a global.asax which implements Session_Start(). In Session_Start() I write three things to the session: The time the session started. The user's host address. A serializable device object wrapping the user's agent. The problem is now that users whic...

ASP.NET Automated & Manual ETL Process

Here's an interesting problem. I have an ETL script written in c# that I have been running manually on a somewhat regular basis. It is used to update my web app's database. I want to automate the ETL process AND create an interface for the web app admins to manually start the ETL process. I could have sql server kick off the ETL proce...

ASP.NET markup has two controls, A, then B. Why does B appear first?

Here's my full markup: <%@page Title="" Language="VB" MasterPageFile="~/Master Pages/MasterPage.master" AutoEventWireup="false" CodeFile="Statistics.aspx.vb" Inherits="Statistics" %> <%@ Register Assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Namespace="System.Web.UI.DataVisua...

is it a good idea to store a delegate in a session(user)? any risk of memory leak or other kind of issue?

I would like to know if it's a good idea to store a delegate of a method sitting in a aspx page into the session the project that I work on does it and I have a bad feeling about it ...

asp.net datalist - change styling

<asp:DataList ID="ItemsList" RepeatDirection="Vertical" runat="server"> <ItemTemplate> <asp:LinkButton ID="SecondLevelItem" runat="server" CommandName="second" OnCommand="SecondLevelItem_Onclick" CommandArgument="<%# Container.DataItem %>" Text="<%# Container...

ASP.NET MVC 2 Returning to previous screen

Is there a way to return to the previous view without having to record all the parameters that were used to get to the view in question. Consider this situation. You have a search screen with input parameters, you press search and get results displayed on the page. You click on one item to get a detailed look which redirects you to a new...

jQuery Confirm Dialog in ASP.NET Button OnClientClick

I have a TemplateField in a GridView in an UpdatePanel with a button called btnDelete. Rather than the standard OnClientClick="return confirm('Are you sure?')" I'd like to use jQuery Dialog. So far, I'm able to set the jQuery using btnDelete.Attributes["onclick"] and setting the jQuery Dialog code in the code-behind. However, it posts b...

Using ManagementScope (WMI) - Any gotchas?

I want to use System.Management.ManagementScope to query the list of currently logged in users. This will be part of a larger application that we will deploy to our customers, so it needs to be easy to setup and highly reliable. Is ManagementScope/WMI a good fit? Should it always be available to query on most OSes? Are there any secur...

Determine size of ASP.NET page's viewstate before serving page

What ASP.NET page lifecycle event can I write code in to determine the size of the viewstate that being sent out? Also, is it possible to determine the size without parsing through the rendered HTML (like a property on the page object) or is parsing the only way? What I'd like to do is log the sizes, specifically if they cross a certai...

Detecting callback timeout

I have a ScriptControl which does a Callback to my page. Success and error responses from the server work fine and go to my client handler functions. However, if I stop the web server, then the request can't go through (should time out), but no client functions are ever called. I'm defining my handler functions through Page.ClientScri...

ASP.NET Cross-Sub-Domain Single Sign-On Cookies

I have a Single Sign-on solution which is working great in our test environment. It uses Cross-Sub-Domain cookies to share the authentication ticket between 2 web applications. Sign-on is done only on one of the applications and on the second site the user is authenticated by the cookie created by the first site. The problem is that wh...

How do I stop Visual Studio 2010 from downloading large files when connected through FTP.

Here is the scenario. I connect to my server from a random computer to do a couple of updates through FTP in Visual Studio 2010. I open up the page I wanted to edit which has links to several very large files. It seems the intellisense goes out to look for these files. Visual Studio will then be stuck trying to find these very large ...

Implementing RadPanelBar

HI, I have a table with 3 columns Itemid(int),Itemname(string),ItemDesc(string).. Im trying to use a radpanelbar to display this information, where the bar initially shows the item name and on clik/expansion it will show the item description.. I tried looking at the examples on telerik site but didnt understand the point of datafieldid ...

Get Visual Studios to use subdomain?

While writing an asp.net project i may have this url for testing/debugging http://localhost:1234/ I have code that takes in account of subdomains. Can i make visual studios call the same code with http://anysub.localhost:1234/ ...

C# JSON to LIST extension method

From Scottgu's post i got the code to Serialize a collection to JSON object.(i)How to convert the JSON object back to List? (ii) I did not find JavaScriptserializer in System.Runtime.Serialization will the only code work for VS 2010? ScottGu's snippet namespace ScottGuHelper.JSON { public static class JSONHelper { public sta...

Is it possible to have the entire contents of a class that tripped an error included in the stacktrace?

A lot of time can pass between the moment a stack trace is generated and the moment the stack trace is thoroughly investigated. During that time, a lot can happen to the file in question, sometimes obscuring the original error. The error might have been fixed in the meantime (overlapping bugs). Is it possible to get Stacktraces that sho...

Are there any good tools to generate a Google Sitemap?

Can you recommend any tools? Should we build our own? Should we create the sitemap manually? ...

asp:Textbox within asp:table

Hi All, I am trying to pass a SqlParameter to a SqlDataSource. The SqlDataSource has a condition ...Where A.PERS_LNAME = @PERS_LNAME Now coming to configuring SqlDataSource, I click on 'Configure Data Source' and reach till the 'Define Parameters' step. I selected 'Parameter Source' = Control, but I don't see the <asp:Table>'s ID's ...

Better pattern to handle nested code conditions?

I have a webpage that needs to selectively show or hide a substantial number of controls. Each control's visibility is determined based on which of 3 conditions are true. So, for example, given the conditions A, B, and C; Control1 needs to be visible only when A and B are true and C is false. Control2 needs to be visible only when B a...

How to call an ASP.NET web service from client script in an ASP.NET 2.0 web application?

Hi, So I have an asp.net 2.0 web application and I created a web service to post some data from a web form to a database. I now want to use jQuery/AJAX to post the data to the server but since the application is 2.0 and not 3.5+ I don't have the System.Web.Script.Services.ScriptService namespace which seems to be needed (I am posting JS...