I have a form into which users will enter text. I want the user to be able to enter "some" HTML however I would like to prevent "bad" HTML. The "bad" HTML would be things like <SCRIPT>, <OBJECT>, <APPLET>, etc. Does anyone know of a good server side validator that will catch this type of "bad" ...more >>

Hi, I have a really wired behaviour in my asp.net application. Little background, I have a base pages which contains about 17 images laying around (create a circle) and this page contains a control where I'm presenting my pages content. Here is the problem: In most cases, when the p...more >>

Hi. I am using this function tu execute updates to a MySql database from a sql string, but I am getting a System.InvalidOperationException: Connection must be valid and open. Database queries work fine, but I cant update the source. Am I missing something? Thanks, Alejandro. p...more >>

Hi all, I have a two hop issue. I have two machines in the same domain--one webserver and the other hosting SQL Server. I am using impersonation and integrated windows authentication but for some reason the connection is bailing to the database from the IIS machine. I can use my localhost ...more >>

Hi, I'm wondering where I'm supposed to get the ADO.NET component? The documentation says to reference System.Data.ADO but it seems to be missing from my system as I've checked the System.Data namespace in the Visual Studio object browser and it's not there. Is this a separate component that ...more >>

Hi, I'm wondering how I can generate a postback using javascript on a page that does not have any controls with the auto-postback property set to true. I know I can just use the submit() function but this triggers page validation which I do not want. What I'm trying to do is dynamically write ...more >>

I'm able to document.oops.play(); in a htm but when i move it to my aspx file it ignores it. Any suggestions or where can i read more? thanks. <EMBED SRC="x.wav" NAME="oops" AUTOSTART=FALSE MASTERSOUND HIDDEN=true> -- Richard...more >>

Hi, I have RadioButtonList for Yes/No This are values: <asp:ListItem Value="True">Yes</asp:ListItem> <asp:ListItem Value="False" Selected="True">No</asp:ListItem> rblQuestion.Items.FindByValue( _myObject.Question.ToString() ).Selected = true; I can't get Yes selected when _myObject...more >>

Hi everyone, I'd like to put some DropDownLists in my DataGrid, populating each from a database query. I'm having a little trouble naming them based on the current record in the DataSet. For example, here's a snippet of what I have now in my DataGrid <ItemTemplate> <asp...more >>

Hey all, I'm writing a .NET application where I want all HTTP errors such as 404 to redirect back to the home page. Since .NET only handles HTTP errors if the client is requesting a .NET resource (.ASPX, whatever), I need to go into IIS -> Custom Errors tab and set my homepage under each HT...more >>

Hello! I am working on a web application with Windows Authentication. In WindowsAuthentication_Authenticate event of Global.asax file a user is Authenticated and User/Roles Array is loaded into GenericPrincipal object. So User.IsInRole("somerole") can be used. User/Roles Array first retrieve...more >>

i have to combo's in the footer of my datagrid. the combo1 is populated on load. but the combo2 can only populate after an item in combo1 has been selected is there anyway of getting the SelectedIndexChanged event in the codebehind for combo1? or how else would i do it? Cheers, Craig ...more >>

Is someone from MS listening? Every thread I've seen on this topic goes dead. Even the MVP's don't seem to have an answer. My problem: I'm working with ASP.NET 2.0 Beta 1. I have all web application instance-specific code factored into the /code directory of my web project. I have custom ...more >>

Is there a .chm help file which can be downloaded for ASP.net ? ...more >>

Hi, My IIS installation had been working fine on my WinXP Pro laptop with VS.NET 2002. Then to make space I removed VS.NET 2002. I then installed the Microsoft Web Studio Development 2005 Beta with the ..NET Frameworkd 2.0. Subsequently I installed VS.NET 2003 (Framework 1.1). The proble...more >>

Hello, I have a page with a RadioButtonList and a PlaceHolder control. The RadioButtonList's AutoPostBack attribute is set to TRUE and its SelectedIndexChanged event loads one of three UserControls into the PlaceHolder's child control collection depending upon which of the three radio buttons i...more >>

Hi Experts, I have Visual Studio 2003 Installed in my Windows 2003 Sever. However, I have problems in creating new Projects, Classes, Forms etc. When I try to create New projects, I get an error that some wizard is missing and I get an empty project opened. There are no forms, web.config, glo...more >>

I have an events table which stores the time of each event - the time and assoicated timezone. Is there a way of converting this time into GMT (with support for DST).. some sort of function which accepts a time and timezone as parameters and returns the time in GMT? ...more >>

Here's an interesting one that has me stumped. I have several ASP.NET applications writen in VB.NET that stopped posting back on click of a button. Nothing has changed in the code or the environment, it just stopped working. Here's my config: Production: ASP.NET 1.0 ..NET Frameworks 1....more >>

Hi, how can I validate the fomat for valid email and the most important is if that email is real working email...sort of checking mx record? How can i do this in asp.net Thanks in advance.... KB ...more >>

I am developing a form that uses a lot of Web Form controls (not HTML). I disable certain controls in sequence, but as I click on other buttons on the form the disabled controls get reset to their original state, enabled, and I have to turn them off again. Is there a way to keep this from ...more >>

I'm in a hurry and I was curious if there's anywhere out there offering *free* regular expression examples for the RegularExpressionVaildator. I tried regexplib.com but half of the examples are throwing errors which leads me to believe they're not .net-compatible. I need several different k...more >>

Hi Any one know how I get list of Session IDs, I mean all current Session IDs. Thanks -- -MrDotNet MCAD, MCSD Sr. Software Engineer / Lead Architect ...more >>

I have a few text files out on our server that are being created dynamically by an existing ASP web page. I'd like to write a small ASP.NET web form that will allow users to view these text files as a PDF by using Crystal Reports for .NET. Is this possible? How would I go about feeding th...more >>

I have a page with a button that updates a table in the database. This should affect the data displayed on the page. I've used break points to ensure that the code calling the query to collect the data is being properly called. The query process itself consists of building a new SqlConnect...more >>

I've built a simple ASP app that runs fine on my desktop. When I deploy it to a server, the page opens, but the Page_Load doesn't fire. I'm setting the text of a label in the event, and the label always shows it's static text. When I change the static text of the page and re-upload, the n...more >>

I've Googled this for a while, to no avail. Hopefully someone can help me. Maybe I'm using the wrong terminology. Here's the scoop! Let's say I've got a simple *.ASPX page that has a syntax error. For example, broken.aspx might only contain the following line of code: <% Dim x as %> ...more >>

Hi all, I just created a website in IIS 6. I am using ASP.net and have set impersonate=true in my web config. I set the security level to Integrated Windows Authentication but don't get prompted by any login. Does IIS 6 do something different? Am I missing something? ...more >>

I'm trying to bind data from a table in a database to a dropdownlist. I can successfully add the connection and data adapter but when I add the dataset I get and error during build. The type or namespace name 'DataSet1' does not exist in the class or namespace 'CiscoSpares.CiscoSpares' (a...more >>

I'm not sure I understand the use of the ViewState. Do I understand correctly that values of controls are automatically held in a hidden control called ViewState? If so, then why can't we get them, or how do we get that value? I always have to set the ViewState("FirstName") = txtBox.text ...more >>

Hi, I am creating a news and events page on my Intranet site and I wish to allow people to upload an image with there news to my site. The text and image are all stored in an SQL database. I have been successful in uploading Jpeg files and downsampling them to a size that fits the web site. My...more >>

I need to play a .wav file from my program. I know how to do it from a regular desktop program but have no idea how to do it from asp.net. My application regularly plays short (4 seconds or less) wave files depending on the results of an input. I'm about to start the conversion from the norma...more >>

I have a page that has a standard form and for one customer will have a set of 4 extra buttons right in the middle of the form. So, if possible I'd like to make one page that can hide/show those buttons according to a web.config setting. But, when the buttons are hidden, I don't want there b...more >>

I am experimenting with the dynamic linked listbox control example found on the atgconsulting.com website. I downloaded the example & then compiled the linked listbox & linked dropdown custom web controls into a DLL named LinkListbox.dll. I then added a reference to this in my web applicat...more >>

When I select "Debug->Start" from the menu to debug my ASP.NET web app, I get the following error message in a dialog box: Error while trying to run project: Unable to start debugging on the web server. My Web.config has the following entry: <compilation defaultLanguage="c#" debug="true" /...more >>

We are creating an HTTP Module to add code to the Application On Start of an applicaton. However, there is no HTTPApplication.OnStart event to attach to. Does anyone know how to attach to this event? Oh, and while we are at it, attach to the Session Start also. Thanks, -- Mike Logan...more >>

I'm using the following code to stream a CSV file download to the client browser - HttpContext.Current.Response.Buffer = true; HttpContext.Current.Response.ClearContent(); HttpContext.Current.Response.ClearHeaders(); HttpContext.Current.Response.ContentType = "application/vnd.ms-excel"; ...more >>

Does ASP.NET support for cURL which available at most unix system? Or is there a function that can post and grab the html result? Thanks. Chris ...more >>

HI, how to do a RecordSet in OleDbConnection??? my original code is using ADODB.RecordSet But how can i do the RecordSet in OleDbConnection? my original code Function openDB() As Object objConn = New ADODB.Connection objConn.Open(dbDNS) '("dbfile") objRS ...more >>

This is driving me crazy. I get "SQL Server is unavailable or does not exist" error while developing asp.net application in vs2003's IDE development mode but when I install the application on the server the error disappears and everthing seems to be ok. The error does not appear when I connec...more >>

I want to mix my front page site with ASPX pages. has anyone done this. Also this is more complex because I'm using Dynamic WEb Templates on Frontpage rather than frames. I know I can use IFrames but that will reduce my reach because not everyone uses exploer. Any ideas would be welcome. ...more >>

I've posted a couple of times before, but to my amazement, nobody else seems to have experienced. In short, while I am coding in the codebehind of a aspx page, color coding and intellisen vanish out of the blue. It has become rampant despite that VS.NET is a fresh install. Very frustrating...more >>

I have built a simple form that uses input validation. I use the EnableClientScript option to produce a javascript alert box when input errors occur. The only validation is a password confirmation which uses a compare validator and a validation summary. On my local machine, this form performs as...more >>

Questions about Role Based Security in ASP.Net: I have a few questions about role based security in an ASP.Net application. Below are some points about our system: - We have a hierarchical roles system stored in a database. - We are also using Windows for authentication. - Page - Role...more >>

Questions about Role Based Security in ASP.Net: I have a few questions about role based security in an ASP.Net application. Below are some points about our system: - We have a hierarchical roles system stored in a database. - We are also using Windows for authentication. - Page - Role...more >>

How do I transfer the value of one variable in one sub to another variable in another sub??? Thanks...more >>

I have a simple page where I would like to modify a repeater (bounded to a dataset) if a button (outside the repeater) is clicked or not. I tried to solve this with a button click event that raises a global flag and a repeater OnItemCreated event that modifies the repeater items accordingly. ...more >>

I'm calling a component to get my data. The component is returning a dataset. I need to populate text boxes on my aspx page with the data within the datalist. Where can I find an example that does this? Here is the code i'm using and i'm gettting an error: code: Try dbConn....more >>

Can I run an ASP.NET program on apache web server?...more >>

This system works in a intranet w/ some 200 stations and this particular form is retaining its values among different stations...like if I enter some values in the form on station 1 walk to station 2 and call the form the fields will be field w/the same info.... What can I do ? Thanks C.Fle...more >>

Hi all, I'm experiencing a rather strange problem: I am coding a web application using VB.net ASP.net and Visual Studio 2003. It's quite a large application, but the problem only occurs on one of the Web User Controls. This particular Web User Control has some text entry fields in it, d...more >>

I'm trying the dynamically wire up events for a load of LinkButtons contained within an <asp:Table>. For some reason if I try and do this outside the Page_Load event my events simply don't fire despite the correct postback code being added on the client and the postback taking place. Can...more >>

If anyone can help with this it would be much appreciated....more >>

Hi, I need to use check the current windows user of the application by using User.IsInRole(DOMAIN\USERGROUP) I have knowledge of the usergroup to check on, but since the application will be installed at different web servers, I cannot be sure of the windows domain. Is there an easy way to...more >>

Hello! I have a problem with SQLSession state on my ASP.NET pages. SQLSession state behaves very different from InProcess session state, which I think is very bad. I can understand some of the differences, e.g that every object you store in SQLSession state have to be serializable, but ot...more >>