I have a popup window displayed when the user clicks on a button in an asp.net. It uses the following code to display the popup window. System.Text.StringBuilder sb = new System.Text.StringBuilder(); sb.Append("<script language='javascript'>"); sb.Append("faq = window.open('"); sb.Append(Requ...more >>

I am continually getting this error and my VS.Net interface somewhat locks-up. The addresses are both 0x000000000. I find myself resetting IIS frequently, closing VS.Net and a few reboots a day. Any ideas why this is? Thanks, Chris ...more >>

I am trying to transform a dataset with xslt, and it continually fails with a NullReference Exception after the transform when I try to read the result into another dataset I have tested the XML and stylesheet, so you can assume (ahem) that they are valid. I am using 1.1 The code is bel...more >>

I have a webform that is hosting a Web User Control that is feed through the Property...Set all its required data. When I make changes to said data, I then fire off the Button_Click event to grab that data back, however the only information that I do retrieve is the original data from the abov...more >>

I am trying to convert the regular sized images in a directory to thumbnails and then display the thumbnails in a datalist. My code below is displaying the first image and nothing else after it. What do I have to do to have the thumbnails displayed in my datalist? Thanks. Dim strFile As St...more >>

Hi, After uploading a file i wish to delete the file which has been uploaded. Can anyone help me on this. Or give me links for the available Example. Thanks Arvind ...more >>

I am somewhat of a "newbie" when it comes to programming, so please bear with me <grin> I have completed the "Editing an Access Database with ADO.NET" walkthrough and now want to incorporate it into my VB.NET web project. Does this work well for combining dissimilar language web projects?...more >>

Hello, i am changing a web site from ASP to ASP.net. I wrote some code using my old standard ASP code and some information from my hosting service. I want the email, with the form values, to be sent when the button OK is pressed. Should i place this script on the form page or on a new pa...more >>

Hi All, My requirement is, user should be able to edit excel file already uploaded and save the same to the server without downloading the file. Normally what we do is, first download any file make the changes and upload the latest version. But user wants this to be happen online i.e without...more >>

Hi, Sorry for quite dumb question, but is there a way to make conditional compliation of aspx pages? I wish I have a page that will have some modification when build type is different (e.g. i will set a global flag, in the project settings or code). I could mark the fragments with #define b...more >>

I need to offer a list of files for download that are Images. Is there a way to put a link or javascript something in, so the file is offered as a file, and not interpretted by browswer as a file to be displayed?...more >>

Hello, Please, what should I do, if dotNET framework has been installed before the IIS 5.1, and now, when IIS is installed, it does not support aspx files, of course. I am worried that adding all the application configuration settings for asax, ascx, ashx, etc files could be claying with fire....more >>

VS.NET 2002/VB I am checking for browser type and version on my .aspx page, and I have one visitor that can't access the page because his IE6 browser is returning an "Unknown" when I do my check. I am using IE6 (as are a few hundred others) and none of us is having an access problem; only th...more >>

Hi there, I'm a new to this ASP.Net and is trying around. I know how to use $_POST and $_SERVER ['varablename'] to retreive values between webpages, sendpage.php and receivepage.php But I don't seem to figure out how it works in ASP.Net (use language=VB)???? I've got a default .aspx page t...more >>

I have installed Dot net framework 1.1 and dot net framework SDK and also IIS in Windows XP. But i am not able to run any aspx file in my internet explorer. why this happened. how should i configure so that i can run aspx files in my internet explorer? i am not able to see any asp .net text box ...more >>

How can I retrieve the IIS Application Name (set using the IIS MMC Manager) within an ASP.NET application? I tried using AppDomain.GetData("APP_NAME"), but that appears to be just a hex string associated with the dynamic id created by ASP.NET when creating app domains and names within the app d...more >>

Does anyone know how to show a listbox with different colors on its itens? Here goes what I've been trying to do: On Page_OnLoad event I fill the dropdownlist and then I perform a FOR to read this dropdownlist to change the color of some items in it but this doesn't seem to work. The line ...more >>

Hi gurus, Does anyone can suggest me about some OLAP web clients? Thanx ...more >>

I have some drop-down lists I'd like to pre-populate from values in a database. I've found that if I just blindly assign the SelectedValue, I run into problems if what I'm trying to assign isn't a choice for that dropdown. So what I need to know, is how do I test for the existence of a va...more >>

Has anyone seen a metaphor for managing group membership? I'm primarily interested in the user interface. I've looked at what windows has done in the Computer Management console. I was hoping someone would have something more web-based. Thanks, Craig ...more >>

For some reason when I use the tilda as such: Response.Redirect("~/Admin/TabLayout.aspx") in the iBuySpy portal, it redirects to DesktopDefault.aspx instead. This does not always happen, I have several implementations of the IBuySpy Portal, and it is only happening on one of the websites, any i...more >>

Hi I have a large form (over 150 feilds) that i have decided to break up into sections for using the panel control. I show and hide parts of the form by changing the visibility of the panel controls as the user progresses through the form. When the user reaches the end of the form i inte...more >>

Our ISP just upgraded our web server from Windows 2000 to Windows 2003. My code was built with VS 1.0 since Framework 1.1 was not on the old server We are running into problems with AOL users. They are being sent to our site's custom error page. This happens randomly from various pages Is there ...more >>

I'm trying to programmatically write a javascript script block *outside* the <form> tag. Both RegisterClientScriptBlock and RegisterStartupScript will render them inside... how can I do that? Thanks ...more >>

Hi, Does anybody know how to create a root class with ASPX page to derive from this class later? The idea was to create the "root" page with all evaluations, restrictions, basic interface, etc., then derive a new class from it. Maybe URLs, documentation? Dmitri. ...more >>

I have a classic asp app that i'm getting ready to convert to asp.net using C#, is there any tools or utitlies out there to convert asp to C#/asp.net code or doI have to re-write the pages from scratch? I'm learning C# and not sure how something work in asp.net. thanks ...more >>

When my web app throws an exception, my try... catch adds ex.tostring to a label at the bottom of the page. This has been working great. But now, I do not see the Line number of the source of the error. WHY!!!!!!!!! Very frustrated with several things today, and this is not making debugging any easi...more >>

Can I call a Javascript from codebehind. If so, How? ...more >>

Hi all, how can I open the default.aspx and disable/hide the toolbar, address bar, statusbar (IE) ? Thanx Eric ...more >>

Hi, I am trying to find out what's the best practice if you wan't to restrict users to logon just once on an asp.net app with forms authentication. So If someone starts a new session he is not able to logon again. Also from another computer What should I do, store it in a db or hold it in a app...more >>

I have a form that uses a bunch of required field validators. I want to have an option to pre-populate the fields based on a lookup on the same page. My problem is that the validators prevent me from submitting the form for the lookup. What I think I need to do is somehow make the valida...more >>

Hi all, I have a datalist that will contain a number of ASP.NET link buttons. Code below ====================== <asp:DataList id="DataList1" runat="server" GridLines=None ItemStyle-Height="10px" ItemStyle-CssClass="menu" CellSpacing="1"> <ItemTemplate> <asp:linkbutton id="btnRedirec...more >>

How can I stop the EnterKey from clicking the button on my form? I am using a scanner to enter one of the textboxes and it keeps sending an Enter which clicks the button on my form before the rest of the data has been entered. -- Barry Fitzgerald ...more >>

I've read lots of excellent posts here about this problem. Mine is similar but will not yield to any of these fixes. When I try to create a new web project, I get the error message "VS Cannot create or open the application...The likeliest problem is that required components are not installed on the...more >>

Hi there, Suppose there is a "Submit" button on a ASP.NET page. Normally, after a user hits the submit button, the code-behind will insert a row to the database (or some database operations). Once it is completed, another page will display. Assume that the database operation takes a long ti...more >>

Is it possible to make multiple select command on one datagrid? I want to execute method1 when column 1 was selected and execute method2 when column 2 was selected. Anyone know how??? Thanx in advance ...more >>

Does any one know of a method to use the range (or any) validator to determine the minimum and maximum password length with out using JScript (or any other scripting language) in an ASP.NET form? *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET.....more >>

Is there a simple way to see if a session is expired? I'd like to just have an easy Boolean test (IsExpired or Not IssExpired kind of thing) instead of looking for specific values in the session state. Is there a method to just simple do that? Thanks! ...more >>

Hi All I am running a ASP.NET Web form on which I ask the user to complete a new employee's name, surname, SMTP email address and some other fields... I need to verify that the SMTP email address exists on the company exchange server before the form can be submitted for further processin...more >>

So I'm using a tweaked version of the code below, but when my page doesn't have a form, the script doesn't seem to be registering. Is that by design? and if so, is there another way to get a JS file to be registered when the page doesn't have a form? Andrea submitted by Hugo: You could re...more >>

hi all, Have you noticed that there is a gradient.aspx in many microsoft web pages. It's used to create table cell background colors. and looks very nice. <img src="/library/toolbar/3.0/gradient.aspx?a=FFFFFF&amp;b=3568CC&amp;w=250&amp;h=22&amp;d=ltr&amp;c=RkWooiSyZq0Yx5DIezuYpFhZ%2ffA%3d".....more >>

Hi there I'm trying to add a couple of calendars to a web control so that a client can view all the transactions they made between two dates. I use one I found on the internet where there is a textbox with a button and a calendar - you click the button which makes the calendar drop down and...more >>

H We are having problems with the Session_Start function in global.asax. If you call an aspx page from word. The Session_Start is called and that's fine. But if you click on a internal link on the site. The Session_Start is called again!!!!! and you also get a new SessionID So every session objec...more >>

I have an issue here with our website. It sometimes returns a big "Service unavailable" message when I access the site. But after some hits on F5 the page is served correctly. Not sure what is going on. The site is hosted on a remote server. Checked up with their support group and they said th...more >>

I have been looking at tutorials on event logging and utilising the EventLog class. The code shown in these tutorials will typically be as shown below: EventLog ev = new EventLog() ev.Log = "Application" ev.Source = "Test" ev.WriteEntry("test entry") When I try and run this on my ...more >>

I know this sounds like a "why the heck would you want to do that?" sort of thing, but I'm curious to know if it's possible to start a new session (with a new session ID) after calling Session.Abandon. Any takers?...more >>

Hello! DESCRIPTION =========== I've registered a COM DLL containing several coclasses: coclass PlainVanillaObj { [default] interface IPlainVanillaObj; }; [ uuid(AA2715F9-6EF6-40D3-9CFF-04069358221D), helpstring("PathTableObj Class") ] coclass PathTableObj { [default] interfac...more >>

I'm trying to download a file that is created on the fly from a string, and am using the following code in a new page _PrintJobData = // a string returned from a metho _FileName = "PrintJobs_" + System.DateTime.Now.ToString() + ".txt" Response.Clear() Response.ContentType = "application/oc...more >>

Hello, I have a design issue I would like to discuss with anyone interested. I am wondering what kind of design pattern would fit my situation, perhaps not a standard (GoF) pattern but what I mean is just a standardized way to solve this problem. This is the issue: I'm involved in the C# d...more >>