You can write some bad code and browse to that page. The bottom of the error message will state the version of .NET that's in use. For example[^] Good luck.

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Microsoft has a How-to in this very issue- http://support.microsoft.com/kb/71488[^] Take a look. Good luck!

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Take a look at this application- http://www.c-sharpcorner.com/UploadFile/mgold/PlayingVideo11242005002218AM/PlayingVideo.aspx?ArticleID=3d1c3b81-1a12-48e7-ad5e-758f96525409[^] It has an app that uses C# and .NET to play an AVI file. Search the page for the thread on "how to get Total time of an AVI movie????" and you'll see the objects you can call to get this. Good luck!

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Here is a web app that makes crossword puzzles- http://www.pivari.com/crosswordmaker.html[^] It'll work on any Windows platform. You can try it free for 30 days, but then you do have to pay to continue to use it. Have fun!

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You can take a look at this article which explains the implementation of templates- http://www.codeproject.com/KB/aspnet/page_templates.aspx[^] Good luck!

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The first step is to get your Outlook contacts into a usable form. I'd recommend exporting them to a CSV file, which you can then import into a database- Export to CSV- http://email.about.com/od/outlooktips/qt/et090604.htm[^] Import into SQL http://blog.sqlauthority.com/2008/02/06/sql-server-import-csv-file-into-sql-server-using-bulk-insert-load-comma-delimited-file-into-sql-server/[^] The next step is to populate a dropdown list from your SQL table- http://aspalliance.com/581[^] That should be enough to get it going. Good luck!

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Consider this article on codeproject.com- http://www.codeproject.com/KB/aspnet/fileupload.aspx[^] It covers the following 6 areas- * How to set up a form for file uploading * How to receive uploaded files on the server side * How to save uploaded files to hard drive * How to save uploaded files in a database * How to retrieve a file that is stored in a database and return it to a client * Security considerations running the demo project Try that out. Good luck!

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There are two scenarios. If the source and destination server are in the same domain, you can use a UNC path to the new server with a regular File.Copy method- http://msdn.microsoft.com/en-us/library/system.io.file.copy(VS.80).aspx[^] If the destination server is not in the same domain, we have to get a little more creative. We can use the FTP or HTTP protocol to do this via the web. Check these out- FTP http://msdn.microsoft.com/en-us/library/system.net.ftpwebrequest(VS.80).aspx[^] HTTP http://msdn.microsoft.com/en-us/library/system.net.webclient(VS.80).aspx[^] Try these out. Good luck!

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I have seen this free .NET library that is designed for this very occasion- http://www.sharewareconnection.com/-net-email-validation-library.htm[^] It does a lot of different things so you should be able to make it work with your implementation. Try it out!

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This is a tricky question. You can use wscript to run shell commands and get this done.

Dim oShell
Set oShell = CreateObject("WScript.Shell")
oShell.run "cmd /C " & strMYLocation & "mysqldump -B " & dbname & " -u " & strMYUser & " -p" & strMYpassword & " > " & strMYBackup & "dbBkup" & strBackup & dbname & ".sql",,true

Set oShell = Nothing

Make sure to grant read/execute/write permissions to the IUSR account over all the involved files and folders. Good luck!

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Web applications are little different because you have server-side and client-side processing. Getting the page to validate on the fly can be done by AutoPostBack but this can get resource consuming for every keystroke. These types of changes are better fielded by the browser using Javascript- http://w3schools.com/jsref/jsref_onchange.asp[^] The onChange event can be used to enact form validation. If you really need some VB or C# in play here, you might try to enact some AJAX with the onChange event. Good luck.

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You can make a button with an image background. You can also make an image that acts as a button-

<img src='test.png' onClick="buttonFunction()">

This can enact a Javascript function or what have you.

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Check this link out- http://w3schools.com/css/css_pseudo_classes.asp[^] ...under 'Anchor Pseudo-classes' to get your answers. Have fun!

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This error usually only occurs if the program is trying to execute some data memory blocks. Try this out- 1) Right click My Computer > Properties... 2) Click the 'Advanced' Tab 3) Under 'Performance,' click 'Settings' 3) Click the 'Data Execution Prevention' tab 4) Select 'Turn on DEP for essential Windows programs and services only' 5) Restart This option is selected by default, but with installation of SQL 2005 or Visual Studio it can change and cause this type of thing later. Good luck!

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The "class" vs. "dll" question is something many people ask themselves. A DLL is a container for classes, therefore when you create a class, it is compiled into a DLL/Assembly. You can simply create another "library" project and move your classes/code from the console project. Once done, then yes, you have to add a reference to that assembly in your console application. As far as speed and performance- it's not really faster either way. The contents of the DLL are made available, but not included. The use a DLL can clean up our code because it allows you to refer to class names without their namespace. You can compile one or more classes to a DLL and clean up your code this way. This may or may not increase your performance as a developer. Have fun!

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You can setup CAPTCHA to stop for submissions by crawlers or automated scripts. Free .NET CAPTCHA are available at- http://recaptcha.net/plugins/aspnet/[^] The page also gives you examples of how to integrate this into your form. Good luck!

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The below code allows a multi-dimensional array to be stored in the session state. See if you can adapt this to fit your use. Good luck.

private void StoreToSession()
{
string[,]initialArray={"A","B"};
Session["sessionvalue"]=initialArray;
}

private void ReteriveFromSession()
{
string[,]resultantArray=(string[,])Session["sessionvalue"];
TextBox1.Text=resultantArray[0,0].ToString();
TextBox2.Text=resultantArray[0,1].ToString();
}

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PayPal has APIs to do just that- https://cms.paypal.com/us/cgi-bin/?cmd=_render-content&content_ID=developer/library_download_sdks#NVP[^] Check these out. They provide documentation on integration as well.

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Changing your IP is not as easy as 1, 2, 3. You will have to call up your ISP and request a static IP. Most of the time, they dynamically assign you one based on their allocation. Have fun!

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Try something like this for your Javascript-

function validateValues(theForm) {
var error = "";
if (theForm.textbox1 < theForm.textbox2) {
reason = "-textbox1 must be greater than textbox2."
}
if (reason != "") {
alert("Some fields need correction:\n" + reason);
return false;
}
return true;
}

...and the form should contain-

<form method=POST action=action.aspx name=Demo onSubmit='return validateValues(this)'>

Good luck!

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