Hi Group, I wonder if any smart people out there can help me ... I keep gettng Object reference not set to an instance of an object whenever I run my aspx page. I cannot understand why I keep getting this as a while ago this page worked fine with as far as I can tell no modifications. I...more >>

Hi I want to make a form that user can fill in and submit. I previously processed the form post in an asp script and sent the entries as email to a recipient using cdo. How does the form processing differ in asp.net? Secondly, what is involved in adding a multiple files upload facility to th...more >>

In traditional ASP I used to pretty much replicate what is now being done in ASP.NET 2.0 with the master pages. I would create a header include file that included everything up to the main content cell, and a footerthat included the rest. I've been creating header user controls in asp.net bu...more >>

I'm trying to figure out what is wrong with this statement... Text='<%# DataBinder.Eval(Container.DataItem, "EventStartDate", "{0:d}")%>' This is in a textbox. I'm using the exact format of this statement as a stand along value (not embedded in an ASP control), but when I place it into t...more >>

Are there any samples of how to create a user control that uses templates, like the <ItemTemplate> and <HeaderTemplate> of the Repeater control? I tried searching for user control samples on the Web but couldn't find any that used templates. What I'm (still) trying to do is display a hierar...more >>

I am creating a web app for a client in VS.NET using ASP.NET with C#. I need to query three tables in a database using one parameter and display the results on the page. my question is should I use a Stored Procedure or view in SQL Server to get the data from multiple tables? What is the diffe...more >>

Hi I'll be blunt: I'm a newbie to .Net, and a lot of the concepts can be confusing to me at times So basically, I'll start off with a little intro: I'm fairly proficient with "classic" ASP VBS applications development, but I'm attracted to .Net from all the hype about how "its better ...more >>

Hi guys, In my DataGrid I have a column that displays decimal values as currency ( I set the Data Formatting expression of that column to {0:C}). So the actual string displayed in the grid looks like $2,295.99. For each row I need to do some additional calculations based on this value, so I n...more >>

In a large asp.net project we have always kept our connection string in the Web.config as so.... <appSettings> <!-- User application and configured property settings go here.--> <!-- Example: <add key="settingName" value="settingValue"/> --> <add key="connCP.ConnectionString" value=" blah,...more >>

I'm working on an ASP.NET project and would like to have calls to directories map to certain querystring paths.... for example, I would like http://localhost/myapp/somedirectory/ to actually request http://localhost/myapp/main.aspx?pg=somedir Is this possible? thnx ...more >>

Hello, I'm trying to pull the logon user's name using Request.ServerVariables("LOGON_USER")...which is returning nothing...so I need help in determining why it's returning nothing, or I need the format in which it returns the username so that I can hard code it. Does it return anything with ...more >>

I have a multi-value drop down box (<select name="Users" multiple>...) When my form is posted, i can read Request.Form.Item("Users"), a string that contains all values separated by comma. The problem is, that each value itself can contain comma as well, in which case i have no way to separate m...more >>

I have a web control that has a property of UserId. I need to set the userid before rendering the control, because based on who is logged in, it displays something different. If I set the properties in page load for the page the control is placed on, it seems that is post render because...more >>

Am I missing something or does the listbox web control not have a horizontal scroll capability? Thanks, T ...more >>

Hi I have created a usercontrol in which I save a value in viewstate like this: ViewState["myValue"]=value; If I use the same key (ViewState["myValue"]=value;) in my master page, does the framework recognize where the value comes from ? Or have I to set ViewState["myValuefrommyusercontrol"]=v...more >>

Hello, I just started learning about the formview control in asp.net 2.0. I am using the following. The problem I am having is that the data is not showing on the web. <form id="form1" runat="server"> <div> <asp:FormView ID="DetailsView1" Runat="server" > <ItemTemplate> <tab...more >>

from a code class, a] how does one dimension a collection and then b] after it is created, reassign it in the page ? I'm getting only errors on line of code in the page. "System.NullReferenceException: Object variable or With block variable not set " example : ------------------ ...more >>

hi i am using c# with sqldb in visual studio i have a small realtional database that contains data informaiton about clients who filled out an automobile isnruance form -this form has like 5 tables and a lot of 1-to-many relationships can i generate a multipage form from my database table fi...more >>

I am uploading a file from the file input box (textbox with a browse button) but when you tell the file to upload the client doesn't see anything happen until its done uploading... I'd love to provide some kind of visual feedback (an animated image or something while it happens to show its goi...more >>

I'm trying to access the Session Object from a vb.net DLL in my asp.net application. If I use this code: System.Web.HttpContext.Current.Session("some_var") I get this error: BC30456: 'HttpContext' is not a member of 'Web'. What am I missing? ...more >>

Hello, I'm writing a webservice in ASP.net, wich uses a dll. In this dll I'm trying to write to a temporary file. But this does not seem to work. When I build the dll as an exe it works perfect. Is there something wrong with write permissions, and where should I adjust this? grtz, ...more >>

I have reached the pulling hair out stage with this now: I am trying to remotely debug my aspnet applications on our intranet web server. The server is running Win2K Server, SP4. It is a domain controller. I originally installed IIS & then the .NET framework. I now want to remotely debug...more >>

I am running ASPNET on my local machine. I have a problem when I try to connect to a SQL server database table. The data looks good when I right click SqlDataAdapter1 to preview the data. When F5 to run it, I get this error "Login failed for user '(null)'. Reason: Not associated with a trusted S...more >>

Lets just say my app is done HOO HOO. Now, I'm accessing the database via a web service and one thing i noticed that my app is running real slow. When I first started working on the app is ran pretty quick returned the data to the screens in about 2 - 3 seconds. Now its going about 5 - 10 s...more >>

Hi all, I’m an ASP developer but I just started to try and learn ASP.NET. I have the following code but it seems like I have a permissions problem. <%@ Page Language="VB" Debug="true" %> <%@ import namespace="System.Data" %> <%@ import namespace="System.Data.SqlClient" %> <% Dim con...more >>

Hi, I have this website that consists of 2 frames. In my topFrame I have a tabstrip. What I am trying to do is, when you click on a tab, the corresponding page is displayed in my mainFrame. I can't seem to find how to do it. Can anyone help me? Thx. ...more >>

Hi, Is there a way to create a temporary download link and to know when the client has finished downloading the file? Thanks in advanced, Asaf ...more >>

Hello, I have a ASP application that I can't afford to convert totally over to ASP.NET, but currently I am converting the content pages that display in the content part of the ASP frameset. When a user performs some action the left nav frame should update (in ASP world), but with ASP.net, I...more >>

Hi All ... I'm writing a small shopping cart app (school assignment) and need to list all the books that a user selects. I have created a "BookBasket" object that contains among other things an arraylist of the user selected books. The "book" object contains isbn,title price and quantity in...more >>

Hi all, What is the best way to allow the administrator of the application to select which columns are displayed in a Databound grid in an aspx form. I was thinking of creating a form and display all possible columns with a checkbox. The admin would check the checkboxes for each column they wa...more >>

What is the method used to find all asp.net server controls (run at server) such as TextBox, ListBox, CheckBox... currently defined on an Asp.Net page at run time. I need it inside of a controlled loop (for int i=...). Reason: I need to fill up an updatable dataset with all fields entered on ...more >>

I have the following HTML in use on my web page. I need it to show a graphic image on the page but do not know what to use in the codebehind to make the graphic appear. If I load the source url in a browser by itself, the graphic appears, but when I use the tag in a web page it does not. Anyone h...more >>

Hello. I have created some class and want to access session data, but there is error message: The name 'Session' does not exist in the class or namespace 'MyApp.MyWebApp.MyClass'. So how can access Sesstion from my custom class (class is in separate file, not in web form)? ...more >>

For debugging purposes, I have the following in Page_load: Response.Write("postback is " + IsPostBack.ToString + Now.ToLongTimeString) i When I view my page in IE, if I hit F5 (refresh), it tells me (as expected) that IsPostback is False. If I then hit a submit button on the page it...more >>

Hi, is there a way to switch between release and debug version at runtime (e.g. with web.config settings) in an ASP.NET project? Thanks for any hint! Stefan ...more >>

> > > How to display multiple spaces in a dropdownlist webform1.aspx <asp:DropDownList id="DropDownList1" runat="server"></asp:DropDownList> VB.NET Code Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'Put user code to initiali...more >>

I've got a strange behavior on a new machine. I cannot get a web page with a RequiredFieldValidator to submit the form. My test case is simply a new project, add a textbox, a label, a button, and a required field validator. Connect the ReqFV to the textbox. In the onclick event for the button,...more >>

can this be done? I want to display different web user controls based on the selection from the user. ...more >>

I'd like to have a description included in the tool tip (intellisense?) when I call a method from a class I wrote. Just to make sure I'm describing this correctly, I'm talking about the yellow box that comes up with I call the method in code that shows what parameters that method required. Is ...more >>

Hi, I have a dev machine, part of a domain, with a site set to Integrated security only. I want to determine the username of person accessing the page. When I run the page with the following code: Response.Write(Request.ServerVariables["AUTH_USER"]); Response.Write("<BR>"); Response.Wri...more >>

Microsoft MOC 2063 says that i can put an assembly in the bin directory of an AspNet application and instantiate the classes using Namespace.Class. This works with Framework 1.0, but i didn't manage to make it work with Framework 1.1. Anybody knows anything about it? thanks a lot. *** Sent v...more >>

I'm using a Table webcontrol to display a 'grid' to the user. Various cells should be 'clickable' by the user (to run javascript). How can I make this happen? (currently I use the background cell color to indicate to the user which cells are clickable). (I think I could achieve this by addi...more >>

I have validation controls that work flawlessly on the development machine, but not on the target machine. They just get ignored. Plain and simple. I've checked the files in aspnet_client and they seem to be all there. It's not my browser. Other client browsers are seeing the same thing. ...more >>

OK, I've done this before but I can't remember the syntax. My ASP .NET server isn't working right. It has some quirky stuff that usually happens after installing a service pack. What is the run command to reset -- fix -- ??? my IIS install? Something like aspiisreg or regissasp or somethin...more >>

Hello, Because of some problems i had to install my IIS once more, now when i start VS.NET and want to open an ASP.NET Web Application the following notification occurs: Visual Studio.NET has detected that the specified Web server is not running ASP.NET version 1.1. You will be unable to...more >>

I'm having trouble using the update command of a dataadapter. It would help if I could watch it go through each record in the datatable and see what it's doing. Is there a way to do this? Also, is there a way to see the actual sql statements it's executing, with the value of the parameters, f...more >>

how I could count the number of online users with asp .net? which complement should i use? ...more >>

Hi, Does anyone know to convert the string of password into binary format. And convert the binary password back to string format . thanks in advance. daniel....more >>

Hi. Does anyone know to send a mail to local mailbox and read from it.. Need any configuration //?? Thanks in advance.. daniel....more >>

I use MS SQL and .Net on a dedicated server (1GB), but the speed of db access is very slow. Are there any methods/software to improve speed of access to db? Will more memory help? ...more >>

I have up and down buttons on my web form which execute Javascript to move the selected list item up or down in the list. However, when I post the form back to save the list order in a database, the original list order is still present and all changes are lost. Any ideas on how I can overc...more >>

I have a .net application that I am trying to run on my XP Professional Laptop. I have gone through all the posts and they say to set the asp.net user to have access to the folder. But I do not know where to set this, I have gone into IIS and hit properties, I have gone in windows explorer,...more >>

Hi Experts, Working with Visual Web Develope 2005 Express, as per the example given in the URL http://msdn2.microsoft.com/library/x2b3ktt7.pf , the following error comes. "Could not find any attribute 'Master' of element 'Master' ". The attribute available there is 'MasterPageFile'. So, ...more >>