I'm using the asp.net dropdownlist in a datagrid row item template. using client side JavaScript, I need to get the text from the selected item in the dropdown list to update the corresponding grid cell. This dropdown list uses numbers for the values, and text as the display text, therefore,...more >>

I am just learning ASP and .NET (coming from a php, C, Java background) so please bear with me. Where can I find a simple example of a master page which references a css style sheet, and a content file that uses that master file. I would like to see how to include the style sheet and wheth...more >>

Hi I would like to set the login cookie for longer than the default 20 minutes, how can I do that? Thank you, Samuel ...more >>

I am using VS.NET 2008 and like it a lot. One of the very few things I don't like is a bug that seems to spawn literally thousands of   strings, one after the other, on design view changes. Sometimes I will end up with as many as 30,000 of them. I have to do a "Replace" which is slower th...more >>

This is my first ASP 2.0 project and I'm running into a snag now that I'm trying to deploy the project. On my development machine, whenever I browse to the site via the IDE webserver, the URL bar looks like this: http://localhost:1234/directoryname/default.aspx Which works just fine. Howe...more >>

hi, I have come across the problem mentioned in this blog http://blogs.msdn.com/toddca/archive/2005/12/01/499144.aspx it's basically the fact that in ASP.NET 2.0, the File Change Notification is uses causes the application to unload every time a directory underneath the webroot is delet...more >>

hi, i'm trying to upload files. i used <input type=file id=Uploadfile runat=server">. i have placed the control in Updatepanel(AJAX) when i'm trying to upload it.. it is showing Object reference is not set to an instance of an Object. any suggestions. ...more >>

I am not getting any response to my previous question on reusing a DetailsView to insert and edit the selected row in a GridView. So I'll ask an even more basic question. Newbie alert! ;) When the user clicks the Edit link in a GridView, is it common to use a DetailsView to edit that row...more >>

I have the following code to send an email and I get this error: [SmtpFailedRecipientException: Mailbox unavailable. The server response was: <someEmail@someHost.com> No such user here]. The error is on at last line below. SmtpClient smtpClient = new SmtpClient(); MailMessage messag...more >>

Hello, I need to stream data from a "DataTable" to the client's machine. The data first need to be converted to .CSV , and ziped before streaming it to the client. Does anyone has any experience with this? Any code snippet will be very welcome. Many thanks in advance Cheers ...more >>

I am in the process of learning aspx.net. I have programmed for about five years in php for the back end. I am trying to replicate a recent web site that I did, but using aspx this time (for practice only). I have run into a problem. I created a new master page in Visual Web Developer us...more >>

So in our system you can place an order for an item and add photos/files to the order. So a person decides to attach 3 photos to the order before submitting the order. Once the order is submitted the files are then saved in a directory that includes the order number so that they can be easily ...more >>

I've converted a large ASP.NET 1.0 application (written by another developer) to ASP.NET 2.0. It uses Crystal Reports. All of the Crystal Report reports work, except for one. The version I'm using does have a U2lcom.dll with a version of 10.2.0.1093. I'm getting the error shown below. ...more >>

I have a web form that I took over from a developer and he put = everything inside a Wizard control. I now need to find a button in the = wizard control to hide it.=20 I've done button btn =3D wizard1.wizardstep[1].findcontrol("button); btn.Visible =3D false; and i get an error, I've tri...more >>

I have a textbox on a webform and based on certain conditions I wanted to prevent a user from editing its text. I dont like the look of the texbox when its disabled and was wondering if there is a different way to lock it with how hiding it and creating a label to look just like it. I was al...more >>

This is an embarrasingly simple question, but how do you maximize the browser when you've clicked a hyperlink that has a target of '_blank'? Thanks. Ross ...more >>

I am displaying subcategories in my datalist, and now I have a bizarre thing happen when I add a new subcategory record in my sql database, the new subcategory link does not click into the next page: Here is the code surrounding my dynamic 'subcategory': <a href="prov-results1.aspx?county=<...more >>

I had a couple questions about data caching. We have a site that gets a huge amount of traffic to a few specific pages that have a lot of data on them (300k hits/hour during peak, about 6-10 data calls per page OR 500 SQL calls per second). Most of the data doesn't change more than once ever 1...more >>

Hi, I have a dropdown list in a user control with values(10) from my DB. I also have in this ascx other controls (DatePicker, TextBox...) to be filled. But, if the user select one particular value from this dropdown, it indicates to me that the user control have to hide some fields and ...more >>

Hi all, I am experiencing a strange thing happening with a "designer.vb" page. = Controls I manually declare in this page are automatically deleted after = I drop another control on a ".aspx" page.=20 - Why is this happening? - Can I disable automatic declaration and have everything be declared...more >>

i have the following code that deos not work: I have done this in vb wher i include an item as object and then am able to find it correctly. Not working here!!! 1. trying to just find the control to get its type: if ((gvr.FindControl(objPosNeg1) == "System.Web.UI.WebControls.Hyp...more >>

Hi. I have a strange problem. We have an asp.net application running on several server with different setups. On 2 of our servers we experience that the globalization settings are misbehaving. We have boiled the problem down to this: (exemplified by a very simple page) protected void Pa...more >>

hey all, i have an xml doc and its stylesheet file to go along with it. i was wondering if there is an easy way to display the contents on a simple web page? How would i do that? thanks, rodchar...more >>

Hello, Using asp.net 1.1 and VB, I would like to get the date and then fill 3 variables with data pertaining to the date. dim day as integer dim month as integer dim year as integer Dim value As DateTime value = DateTime.Now How do I fill the integers 'day', 'month' and 'year' with t...more >>

I have an asp.net 2.0 app written in C# and VS2005. I sometimes have issues where users leave a page onscreen and then come back to it a few hours later and try to continue working. Of course, it doesn't work then. Currently they will encounter some sort of error message because the session has ...more >>

I have an admin section of my asp.net 2 application, and I want to be able to automatically login as a different user (Forms Authentication) whilst keeping my current session going too. The problem is that if I open a new browser window (via a hyperlink using target="_blank") from my app and au...more >>

Hi, How Can I convert MM/dd/yyyy format into dd/MM/yyyy and the date which is converted into dd/MM/yyyy should be in DateTime format. I do not want to store it as a string. Please help Thanks in advance *** Sent via Developersdex http://www.developersdex.com ***...more >>

Hello I am developing a system for user tracking. In this I am tracking all the visitors that came to my website. i developed this using a HTTPModule and storing the data in a SQL Server database. Everything worked fine till my website gets good traffic. When website is getting good traf...more >>

Hi, In my C#.Net 2.0 aspx file, I have a HyperLink which links to a document file for client's downloading. However, when client click that link, then it just opens the document on a new browser. But what I want is not open it on the screen, I want the document to be saved whenever client...more >>