selecting folders

Question

I am writing a ASP.NET 2.0 web based application in which
I want the user to create & select a Folder using Windows Explorer.After the user creates and selects the folder, on pressing OK I should be able to get the PATH of the folder for storing in a database.

The problem is that there is nothing like FolderBrowserDialog in WinForms which allows me to select a Folder and get its path.

I got a good article in Code project but its written in VC++ 6.0.The article is

http://www.codeproject.com/dialog/cfolderdialog.asp

Can someone provide me the equivalent code in VC# Visual Studio 2005 or help me write a similar code. It will be greatly appreciated.

Thanks in advance.

Mike Gold · Answer

the trick here is to use the input field of the type 'File' in html and then call dynamically created javascript to fire a client callback. type=File /> In C# Implement ICallbackEventHandler in the Page and get the filename in the RaiseCallbackEvent and dynamically register the connection of javascript to the server as shown in the code below: using System ; using System . Data ; using System . Configuration ; using System . Collections ; using System . Web ; using System . Web . Security ; using System . Web . UI ; using System . Web . UI . WebControls ; using System . Web . UI . WebControls . WebParts ; using System . Web . UI . HtmlControls ; public partial class TestFilePicker : System . Web . UI . Page  ICallbackEventHandler { protected void Page_Load ( object sender  EventArgs e ) { // Get javascript function from the // server that is capable of connecting // to our server. ReceiveServerData is // the javascript method we will call when // we are done processing the data string reference = this . ClientScript . GetCallbackEventReference ( this  arg  ReceiveServerData   ); // Generate the javascript that can connect // to the server string callBackScript = @ function CallServer(arg context) { + reference + ;} ; // Put the javascript on the page this . ClientScript . RegisterClientScriptBlock ( this . GetType () CallServer  callBackScript  true ); string callToServer = @ function GetSelectedPath(obj) { filePath = obj.value; CallServer(obj.value ''); }  ; this . ClientScript . RegisterClientScriptBlock ( this . GetType () callToServer  callToServer  true ); } /// /// Processes a callback event that targets a control. /// /// /// A string that represents an event argument to pass to the event handler. public void RaiseCallbackEvent ( string eventArgument ) { Session [ path ] = eventArgument ; } /// /// Returns the results of a callback event that targets a control. /// /// /// /// The result of the callback. /// /// public string GetCallbackResult () { string path = Session [ path ] as string ; return path ; // throw new NotImplementedException(); } }