Does anyone know how ASP .net creates session IDs? I heard ASP classic used to use a GUID but those were too predictable and made it easy for people to guess the next ID in the sequence, and that ASP .net uses a newer technique instead. I'd like to generate a unique ID for a "ticket" but I do...more >>

Hi all My website is consuming a webservice. If I trap exceptions from the webservice what is the recommended way of displaying this error message to the user? Same for confirmation messages such as "Your request is being processed, please check your mail" etc? Thanks Pete ...more >>

I am using menu control whose orientation is set to Horizontal. I want to stop the hovering effect when an item is moused over on a menu Item. How can I do that? I didn't see any property. More over the menu that is rendered shows hyperLink (text with an underline). I dont want the underl...more >>

I have a treeview control which displays fine. But when I go to count the nodes in code, it says 2 when it should say 10. I don't even know where to begin to find this since the control populates fine. TIA, Kit *** Sent via Developersdex http://www.developersdex.com ***...more >>

Hello, I'm coding a web application using ASP.NET 2.0. Is there a way in wich I can enumerate all active sessions and have information about these sessions? Thanks....more >>

hi i am building an webfarm application. Can anyone tell me what is the best method of passing values across page? Does using stateserver cause any issues? ...more >>

Hi, I have a gridview which is using a SqlDataSource to update a table. The SqlDatasource is using a stored procedure to update the table. If I edit a row, change a value and click update the change is successfully applied to the SQL table. After this, the values in the underlying table...more >>

I had asked about this before, but have been unable to solve the problem. Could this be a problem with Web Services? I have 4 web services that I reference in this object. There is only one class. I have an object I am unable to put in my session. I have others that have no problem. Th...more >>

Hello, This code is supposed to generate a random string each run, however I have had it live on a few sites, and it seems to create repeat strings all over the place. ------------------------------------------------------------- <% FUNCTION GetRandomCode(randomcode,codelength,numberofco...more >>

How can I get the value from a Checkbox as control based on controls index instead of controlname? I need something like: Value=Controls(1).checked Hans ...more >>

Hi all I'm wanting to know if its possible to retrieve the current user when using the 2.0 membership provider. The GUID UserID in Users I am using as a foreign key in other tables and I need to use it for other database operations. The membership class doesn't expose a CurrentUser() me...more >>

Are aspx pages compiled or interpative (like asp) or some of combination of the two? Thanks In Advance ...more >>

Hi, I have pounded my head for the last couple of hours tyring ot figure out on how to make my query using LDAP to the AD. The code works fine on XP. And also works great in a windows application. But on a web page, it just fails. I am sure its something to do with IIS settings on Win 2K3 s...more >>

Everyone, I am building a new ASP.NET App in 2.0. First off I love it, I can develop things much quicker. One issue that I has been frustrating me alot is the fact that I can't access the codebehind from other pages. If I go to the object browser for my site the only objects are the ones...more >>

Hi, I'm building an application that will probably sit on some load balanced servers at some point and I'm concerned about keeping configuration settings in the web.config file. Is there a tried and tested method of holding config information in static classes or in the cache that someone...more >>

I am learning OOP and C# and am using VWDExpress to create some practice examples to understand inheritance. Could someone explain why the following is happening: I get the error: 'The type or namespace _Default does not exist in the namespace "Lefantze"' Here is the code: default.aspx...more >>

I am trying to add records to a grid control. I enter in the first record(Person A), then press add, Person A gets added. Then I try to add another record(Person B) and Person B replaces Person A. Does anyone have any solutions? Thanks Carl -- Sent via .NET Newsgroups http://www.dotne...more >>

Hey! How to display 2 object at once using ObjectDataSource? Let's say I have gridView and I want to display 5 columns from one object and another 5 from another object. If I were using SqlDataSource I'd just join to tables but it's not that simple so... is there a way to do it with objects ?...more >>

I have a web farm that uses a state server for session management. A user logs on to a website (www1.mysite.com). When the same user visits www2.mysite.com I want the user to be logged in. Right now it he is not logged in on www2.mysite.com (both sites use the same state server). The reason...more >>

I am working on part of an application most of which is being developed outside of my group. I may actually have two problems here. I have a GridView for which the columns are generated dynamically from a manager class called by the code behind for the page containing the GridView. The grid ap...more >>

Hi Is it possible to change dynamically <title></title> section in page. What I want is to have <title> section depended on values retrieved from database. The question could be extended to other sections from <HEAD> section. If it's possible please provide an example (ideally in C#). Bes...more >>

My web application deployed to the server does not respond to button clicks, but these do work in development. I removed the only range validation control, associated to a textbox, then redeployed the webapp and it worked. This strange behavior gave no errors or indication of what the cause was....more >>

OnClick="btnDelete_Click" , once clicked, fires only after the RowCreated event listed here. No Checkbox is found and the program aborts. How can I intercept this event? I want the RowCreated event to fire on form load, but not first thing after the delete button is clicked. I hope my questio...more >>

Hi, Is it possible to share sessions between subdomains? Say: the user logs in at www.company.com, and is redirected to my.company.com. This is a different url for the same application. Can I keep the session (so I still know WHO has logged in)? The problem (as I see it) is the session-c...more >>

Hi: I have sections on a page in asp panels. I would like to hide/show using javascript, but don't see a visible property for DIV. How do you do this? Thanks, Charlie ...more >>

Essential ASP.NET With Examples in C# Description : The Microsoft .NET Framework is exactly what its name implies: A general system onto which a lot of application-specific technologies are stuck. Essen... Pages : 2815 http://books-download.com/Book177.aspx ...more >>

I'm backtracking to a problem I had a month or so ago. I need to write XML files quite a bit. I'm finding that the way I'm doing it doesn't write a new, clean XML file each time, but just dumps the new data 'on top' of the old stuff. If the new data is shorter than the old data, the remain...more >>

What conditions cause a web application to restart? Essentially losing session state? -- MikeG...more >>

Is there an easy piece of software to edit the database simiklar to access but then remote? ...more >>

I'm trying to validate the length of characters in a text box. Google seems to turn up a few examples of using the regex validator with this expression: ^[\S\s]{1, 50}$ (one being minimum length, 50 being maximum). However, on my page, no matter the length, this validator is always coming...more >>

Hi I am doing a manual timeout, irrespective of whether the user is active or not I will time them out after 3 hours. I also make sure the page is not cached so that they can't go back to the page from which they were timedout. The problem now is that when they go back to their page(which s...more >>

Hi there, I've come across the next problem: angle brackets in values being sent to a server. Because of this stuff HttpRequestValidationException occurs (FW 2.0). It seems that the validateRequest being set to FALSE should help (e.g., http://kb.seekdotnet.com/ViewArticle.aspx?ID=42)... but...more >>

Hello! We developed a small application using VS2005/ASP.NET 2. On development station it worked well. Then we published the site to a directory on the development. comp., and brought to the client. The client's system guy set up an IIS virtual directory with all definitions. Then the probl...more >>

Hi, I am writing an ASP.NET application that connects to a Microsoft Access database using the OleDB data controls. I keep getting this error message: "The Microsoft Jet database engine cannot open the file 'C:\MyDatabase.mdb'. It is already opened exclusively by another user, ...more >>

I have win2003 server I'm using for a dev server and when I run index.aspx file or any aspx file locally I get the error "System.Web.HttpException: The directory '/App_Code/' is not allowed because the application is precompiled" I copied all the files from my website that is on the web now (and...more >>

Looking for World Class Developers: (or at least State Class Developers) Early stage software product company aiming to become the Google of healthcare needs top talent to bridge near-term development needs. We are looking for sharp individuals interested in a side project that might or might...more >>

I'm using the 1.1 framework. In my app, the user downloads a file after is has been processed. I'm trying to update the page that that they are downloading the file from with a status message. How can I do that? A command button postsback to the server, and stream is sent the client. It is fol...more >>

I am utilizing the ASP.net FileUpload control to upload a file. After upload, if a user tries to delete the file, I get the dreaded The process cannot access the file "D:\Inetpub\wwwroot\images\uploads\uploadedFile.jpg' because it is being used by another process. If I wait 15 seconds, the...more >>

Hello friends! I need to do subj and VS03. No Atlas or something like this. Would be great if somebody may share a small sample how to do it. What i have in mind is like: 1. Create hidden field to hold source control name. 2. When mouse down, store name in this control. 3. Drag. 4. When d...more >>

I need to force a user to a ChangePassword screen after they have requested there password. I am using a custom MembershipProvider and overriding the Validate user event. After the user has been validate I have the ability to check if the user should be forced to change the password on their ne...more >>

Hi, I am using the Calendar control. Instead of using the buttons to move to next month, I want to put a dropdown list , and display the calendar based on that selection. Same for the year. Any help/links would be greatly appreciated. ...more >>

We are developing an ASP.NET 2.0 (C#) application, and I'm having troubles getting the ASP.NET app. to write to the event log when accessing the web site from a separate client computer. Here's some details: Server and client computers both in the same workgroup Logged into server as local ...more >>

We are developing an ASP.NET 2.0 (C#) application, and I'm having troubles sending e-mail from the server when accessing the web site from a separate client computer. Here's some details: Server and client computers both in the same workgroup Logged into server as local Administrator Logge...more >>

I have a database table of x elements. I need to loop through the database table and add a checkbox for each entry to an asp:Table object. This I can do. Dim tRow As New TableRow Dim tCell As New TableCell ...more >>

Hi, I got a simple ASP.Net page that redirects to another website by using Response.Redirect. Since I don't write anything in the .vb, is there a way to compile the .aspx without the .vb (since I don't use it) ? Thank you, Guillaume ...more >>

How do I hide a column in a GridView in ASP.NET 2.0 when all of the columns are autogenerated based on the datasource? I want to hide the first of three columns, but the following doesn't work: DataTable dt = new DataTable(); DataColumn dc; dc = new DataColumn(); dc....more >>

hi, can anybody gives me a sample code where the sql injection attack is validated. how can i do that in business logic layer and pass the error to the presentation tier I want the sample code Thnx, bye ss...more >>

Hi Can anyone show a sample code where the error handling is done with the logging the errors. What are the best methods of logging the errors in .net perticularly in WEB Application Thanks, ss...more >>

Hi all, This is my first message here so i'll try and include all the information that will help you help me out, if possible. Basically I am using C# in ASP.NET 2.0 and have a Repeater control in my aspx page with two image buttons, one for an edit command, another a delete command. Here i...more >>

Hey I have just upgraded to VS.NET 2005 and have a question. How do I make a .NET Placeholder control public in VS.NET 2005? In VS.NET 2003 I inserted the placeholder control and set this line in my code behind: public System.Web.UI.WebControls.PlaceHolder regionComments; But the line ...more >>

Hi everybody, I like to allow user to select and browse to which location to save the pdf file of a crystal report viewed on a web page, how can i do this in ASP.Net? I need to get the path selected from dialog box. Thanks. Note: Using VS 2002 den2005 -- MCP Year 2005, Philippin...more >>

Hi, We have a base class that is derived from System.Web.UI.Page that we we are using for all pages in a project. The same exists for UserControl. Now we are going to implement a few MasterPages and we are looking for a good way of avoiding more duplicated code. Our problem is that MasterPa...more >>

Hi all, does IIS 5.0 support the ASP.NET pages? I tried to load a file .aspx, but this tag: <asp:Label runat="server" id="Messaggio" /> does not produce any output. Cheers, Pierre Blanc ------------------------------------------------------------ http://www.teutoburgo.tk Teutoburg...more >>

Friends, I have web page with gridview... The gridview row selection works fine (with buttonfield for select) .. but as soon as I add <%@ OutputCache Duration="600" SqlDependency="TableName" VaryByParam="none" %> The select event fires just once on the page and then it doesn't select any...more >>

in my code i am storing the contents into a label // code is as follows lblSecurity.Text = lblSecurity.Text & vbCrLf & _ "Task Description" this is not working though. please advise ...more >>

hi, if I set the src of iframe point to a pdf file on net work drive, it shows the file properly when it is running, but when I change the src to a different file, it just does not work, why? Thanks for any advice ...more >>

Hi folks, IE and Asp.net 2.0 are doing some pretty bizzare things. Some of our users were getting pretty weary of IE redrawing and "flashing" what is essentially a pretty static page every time there is a postback (IE Version 6.0.2900.2180.xpsp_sp2,,,,; Doesn't happen under firefox - bless ...more >>

Hi! Is there anyone knows on how to maximze the Web form during run time? please help me to the code of what im going to do with this. Thanks and Best Regards ...more >>