1. Development and Deployment Issues |
1.1 | Why are Server control tags shown in the browser instead of the controls it represents? |
1.2 | How To Repair ASP.Net IIS Mapping After You Remove and Reinstall IIS? |
1.3 | Why do I get "HTTP 500" error (or "(DLL) initialization routine failed") in my browser? |
1.4 | I have recently move my Web application from Windows 2k to Windows Server 2003. All works fine in Windows 2K but i am not able to view pages using Windows Server 2003? |
1.5 | What are the Best practices for side-by-side execution of Framework 1.0 and 1.1? |
1.6 | Can I have VS.NET and the Visual Studio 6.0 installed on the same machine? |
1.7 | How should I check whether IIS is installed or not? |
1.8 | In Visual Studio .NET, how do I create a new ASP.NET application for an existing ASP.NET project? |
1.10 | In Visual Studio .NET, how do I create a new ASP.NET application which does not have a physical path under wwwroot? |
1.11 | Why do I get the "Unable to find script libruary 'WebUIValidation.js'" error ? |
1.12 | After installing .NET Framework SP1 the client side validations, or rather validator controls are not working? |
1.13 | How to Configure the ASP.NET Version to use for Each Application(developed using 1.0 or 1.1)? |
1.14 | How to Configure Different Versions of an ASP.NET Application Running on the Same Web Server? |
1.15 | Why do I get error message "Internet Explorer cannot download MyPage.aspx from MyWebSite.com ..."? |
1.16 | Why do I get error message "Unable to start debugging on the web server. The server does not support debugging of ASP.NET or ATL Server applications. ..."? |
2. Basic |
2.1 | What is ASP.NET? |
2.2 | Why does my ASP.NET file have multiple <form> tag with runat=server? |
2.3 | How to find out what version of ASP.NET I am using on my machine? |
2.4 | Is it possible to pass a querystring from an .asp page to aspx page? |
2.5 | How to comment out ASP.NET Tags? |
2.6 | What is a ViewState? |
2.7 | Where can I get the details on Migration of existing projects using various technologies to ASP.NET? |
2.8 | What is the equivalent of date() and time() in ASP.NET? |
2.9 | How to prevent a button from validating it's form? |
2.10 | How to get the IP address of the host accessing my site? |
2.11 | How to access the Parameters passed in via the URL? |
2.12 | How to Set Focus to Web Form Controls By Using Client-Side Script? |
2.13 | How to display a Wait page while a query is running? |
2.14 | How to implement Form based Authentication in ASP.NET application? |
2.15 | How to catch the 404 error in my web application and provide more useful information? |
2.16 | Is there a method similar to Response.Redirect that will send variables to the destination page other than using a query string or the post method? |
2.17 | What are the differences between HTML versus Server Control? |
2.18 | How can I change the action of a form through code? |
2.19 | Is there any control that allows user to select a time from a clock - in other words is there a clock control? |
2.20 | How to Compare time? |
2.21 | How To work with TimeSpan Class? |
2.22 | Where can I get information on Cookies in ASP.NET? |
2.23 | Does ASP.Net still recognize the global.asa file? |
2.24 | How should I destroy my objects in ASP.Net? |
2.25 | Are there resources online with tips on ASP to ASP.Net conversions? |
2.26 | How do I publish my ASP.NET application to my ISP's web server? |
2.27 | Why do i get error message "Could not load type" whenever I browse to my ASP.NET web site? |
2.28 | Will the WebMatrix SqlDataSourceControl work with a MySQL connection? |
2.29 | Can I combine classic ASP and ASP.NET pages? |
2.30 | What is the difference between src and Code-Behind? |
2.31 | How can I get the value of input box with type hidden in code-behind? |
2.32 | I have created a .NET user control page (.ascx) but I cannot compile and run it. |
2.33 | What is a .resx file? |
2.34 | Is it possible to use a style sheet class directly on a control instead of using inline or page-level formatting ? |
2.35 | Can I recieve both HTML markup for page and code in the ASP.NET web page's source code portion in the Web browser? |
2.36 | Why can't I put <%@ Page Language="C " %> where at the top of an ASPX file and write my server-side scripts in C ? |
2.37 | ASP pages that worked pefectly on Windows 2000 Server and IIS 5.0 do not work on Windows 2003 Server with IIS 6.0. ASP.NET pages work fine. Why? |
2.38 | Why do I get error message "Error creating assembly manifest: Error reading key file 'key.snk' -- The system cannot find the file specified"? |
2.39 | How to get URL without querystring? |
2.40 | What is the best way to output only time and not Date? |
2.41 | Do I have to compile code if I am changing the content of my aspx.cs file? |
2.42 | How to grab the referring URL? |
2.43 | My ASP code gives an error "Compiler Error Message: BC30289: Statement cannot appear within a method body. End of method assumed" when changed to .aspx? |
2.44 | How can I save images ? |
2.45 | How can I logout when using FormsAuthentication? |
2.46 | Why do I get a blank page when I use Server.Transfer("page1.htm") to transfer to a different page? |
2.47 | How to detect the User's culture? |
2.48 | What is the difference between CurrentCulture property and the CurrentUICulture property? |
2.49 | Can I read the hard disk serial # of the client computer using ASP.NET? |
2.50 | What is xxx(src As Object, e As EventArgs)? |
2.51 | What is the difference between Absolute vs Relative URLs? |
2.52 | What is the difference between URL and URI? |
2.53 | How to convert milliseconds into time? |
2.54 | How to include multiple vb/cs files in the source? |
2.55 | How to convert a string to Proper Case? |
2.56 | How can I ensure that application-level variables are not updated by more than one user simultaneously? |
2.58 | How to validate that a string is a valid date? |
2.59 | Are namespaces and Class names Case Sensitive? |
2.60 | How to convert string to a DateTime and compare it with another DateTime? |
2.61 | How to get the url of page dynamically? |
2.62 | How to convert user input in dMy format to Mdy? |
2.64 | How to hide or show Controls in server side code? |
2.65 | How to check if the user is using a secure or non secure connection? |
2.66 | Is it possible to write code in many languages in one ASP.NET project? |
2.67 | What is the difference between Response.Redirect() and Server.Transfer(). |
2.68 | How to get the hostname or IP address of the server? |
2.69 | What is the meaning of validateRequest=true in .net framework1.1? |
2.70 | What is the different between <%# %> and <%= %>? |
2.71 | What permissions do ASP.NET applications posses by default? |
2.72 | How can I specify the relative path for a file? |
2.74 | How to change the Page Title dynamically? |
2.75 | Why do I get the error message "Object must implement IConvertible". How can I resolve it? |
2.76 | Why is default.aspx page not opened if i specify http://localhost. I am able to view this page if i hardcode it as http://localhost/default.aspx? |
2.77 | Can ASP.NET work on an NT server? |
2.78 | Is it possible to migrate Visual InterDev Design-Time Controls to ASP.NET? |
2.79 | How to automatically get the latest version of all the asp.net solution items from Source Safe when opening the solution? |
2.80 | How to convert the datetime into a string for use in the SQL ' statement? |
2.81 | How to make VS.Net use FlowLayout as the default layout rather than the GridLayout? |
2.82 | Can I use a DataReader to update/insert/delete a record? |
2.83 | What is the difference between Server.Transfer and Server.Execute? |
2.84 | How to create a login screen in ASP.NET? |
2.85 | How to format a Telphone number in the xxx-xxx-xxxx format? |
2.86 | Can two different programming languages be mixed in a single ASPX file? |
2.87 | Can I use custom .NET data types in a Web form? |
2.88 | How can I have a particular Web page in an ASP.NET application which displays its own error page. |
3. Debugging and Error Handling |
3.1 | Why do I get Error message "Unable to Start Debugging" Error Message When You Send Debug HTTP Request? |
3.2 | Why do I get the error message "Unable to start debugging on the web server..." when I debug? |
3.3 | When I Debug ASP.NET Applications I get error message "Access Is Denied. Check the DCOM Configuration Settings for the Machine Debug Manager"? |
3.4 | On Trying to Debug an application, by the F5 key I get the error: "Error while trying to run project: Unable to start debugging on the web server. Catastrophic failure"? |
3.5 | How to configure my project for debugging ASP Code? |
3.6 | In Visual Studio .NET, whenever I try to debug my ASP.NET application I'm not able to stop the debugger on my breakpoints. Why? |
3.8 | How do I debug JavaScript and other script code in my application using Visual Studio .Net? |
3.9 | What are the different exception-handling approaches that can be used in ASP.NET? |
3.10 | Why do I get error message "Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection"? |
3.11 | Why do I get the Error Message "System.OutOfMemoryException: Exception of type System.OutOfMemoryException was thrown."? |
3.12 | Why do I get the error message "Sql Server does not exists or access denied " whenever I try to access the data on Sql server? |
3.13 | Why do I get error message "It is already opened exclusively by another user, or you need permission to view its data." when I try to open Access mdb? |
3.16 | Why do I get the error message "System.InvalidOperationException: Application is restarting"? |
3.17 | How can I see the Trace messages? |
3.18 | I have installed ASP.NET hotfix and I find that Startup Type of the ASP.NET Session State Service is set to Manual.Why? |
3.19 | Why do I get the error message "aspnet_wp.exe (PID: XXXX) was recycled because it was suspected to be in a deadlocked state "? |
3.20 | How to display errors using Page_Error event of Page Object? |
3.21 | How to redirect the user to the friendly error-handler page when an Application error occurs? |
3.22 | How to Enable Remote Debugging on Windows XP Service Pack 2? |
3.23 | Why do I get error message ""Parser Error Message: Access is denied: Source Error: Line xxx : |
3.24 | Why do I get the error message "A potentially dangerous Request.Form value was detected from the client "? |
3.25 | How can I test performance of the Web application? |
3.26 | How can I resolve the error message "Cannot access file '...' because it is being used by another process"? |
3.27 | Why do I get the Compiler Error Message: "CS0246: The type or namespace name '...' could not be found (are you missing a using directive or an assembly reference?) "? |
3.28 | Why do I get the error message "Compiler Error Message: CS1595"? |
3.29 | I get error message at runtime "Value null was found where an instance of an object was required" when using Application state variables. why? |
3.31 | Why do I get error message "System.Threading.ThreadAbortException: Thread was being aborted" while using Response.Redirect? |
3.32 | Why do I get the error message "BC30451: Name 'ConfigurationSettings' is not declared"? |
3.33 | What is a parser error? |
3.34 | Whenever I browse to one of my ASP.NET web pages, Internet Explorer keeps on asking me if I want to download it, or it just displays the ASPX source. Why? |
3.35 | Why am I getting the error: "Type '(OleDb or SQL)Connection' is not defined."? |
3.36 | Why do I get the Error message "Operation must use an updateable query"? |
3.37 | When compiling I get "Could not copy temporary files to the output directory" or "The process cannot access the file because it is being used by another process" error messages. Why? |
3.38 | Why do I get error message "Failed to Start Monitoring Directory Changes" when i try to browse ASP.NET page? |
3.39 | Why do I get Compilation error "<Control> is not a member of <Page>"? |
3.40 | How to see the Message in the Output window using ASP.NET? |
3.41 | How can I use Tracing in Custom Components? |
4. Miscellaneous |
4.1 | How to get the currently logged in user? |
4.2 | How to specify a line break in a Label's Text? |
4.3 | How to convert a string to HTML format? |
4.4 | How do I determine if the user clicked a "Submit" button twice in the page? |
4.5 | How to write date-time values of fields in a dataset into xml in a specific format? |
4.6 | What does "~" mean in ASP.NET applications? |
4.7 | How can I reference simple DLL which contains one class but has no namespace assigned to it in an .aspx page? |
4.8 | How do I specify the Japanese locale for the controls in my Japanese localized page? |
4.9 | Why do some of the events on my page fire twice? |
4.10 | How to remove the spaces in a given string? |
4.11 | I get the error System.__ComObject when using recordset? |
4.12 | Why do I get error "A generic error occurred in GDI+." when trying to save the bitmap file? |
4.13 | How can I force a Save As dialog box from an ASP.NET Web page. |
4.14 | In ASP.NET is there a control similar to Combobox in Windows forms? |
4.15 | How to do text encryption and decryption? |
4.16 | How can I trigger a submit on my form when the enter key is pressed? |
4.17 | How to get list of all files in the directory? |
4.18 | What is HttpHandler? |
4.19 | How to get the size of a byte array? |
4.20 | How to know the width and height in pixels of a given image programmatically? |
4.21 |
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