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C#ASP.Net: how to browse the folder list on Server?
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Hi,
I am writing a web app using C# and asp.net. The requirement is that: there is a button "browse" on the webform, when user click it, the folders on the server will be showed. after user select one folder, the fullpath of this folder will be returned. There is no web control could do that. does anybody know how to do it?
Thanks
I am writing a web app using C# and asp.net. The requirement is that: there is a button "browse" on the webform, when user click it, the folders on the server will be showed. after user select one folder, the fullpath of this folder will be returned. There is no web control could do that. does anybody know how to do it?
Thanks
On the server side, you'd use Server.MapPath to specify the viritual path to your directory. Then perhaps DirectoryInfo.GetFiles to return a filelist. Iterate through that list to populate whatever Server Control you want to contain that data. A Repeater, perhaps.
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Originally Posted by tgreer
On the server side, you'd use Server.MapPath to specify the viritual path to your directory. Then perhaps DirectoryInfo.GetFiles to return a filelist. Iterate through that list to populate whatever Server Control you want to contain that data. A Repeater, perhaps.
Thank you for your reply.
You can let the user browse their LOCAL file system, and select a file to upload, via the <input type="file"> HTML tag. There is no equivalent to let a user browse the server's file system.
I understood your question. My answer was meant to show you that you'll have to code this yourself, and some of the .NET classes you could use to do so.
Left unstated is what the user would do with a file they selected. To know what they selected, you'll have to generate a PostBack / form submit, and then presumably serve them back the selected file via a Response.Redirect() to that file.
I understood your question. My answer was meant to show you that you'll have to code this yourself, and some of the .NET classes you could use to do so.
Left unstated is what the user would do with a file they selected. To know what they selected, you'll have to generate a PostBack / form submit, and then presumably serve them back the selected file via a Response.Redirect() to that file.
•
•
•
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Originally Posted by tgreer
You can let the user browse their LOCAL file system, and select a file to upload, via the <input type="file"> HTML tag. There is no equivalent to let a user browse the server's file system.
I understood your question. My answer was meant to show you that you'll have to code this yourself, and some of the .NET classes you could use to do so.
Left unstated is what the user would do with a file they selected. To know what they selected, you'll have to generate a PostBack / form submit, and then presumably serve them back the selected file via a Response.Redirect() to that file.
No, I don't think I'll post any "real code". You're undertaking a sizable project, and that's a bit beyond the scope of coding for a forum example.
Quite simply, you have to duplicate the entire "open file dialog" box of the Win32 API. Such a thing just doesn't exist on the web. Web servers aren't built for this task. You'll have to code the entire graphic form, somehow using Web Server Controls... then populate the controls with the directory and file information. Then code all the events for when a user clicks a file or folder, each of which will require a server round-trip.
It's a big, big project. I think you'd be much better off making your project conform to the way the web works: give your users a list of hyperlinks.
Quite simply, you have to duplicate the entire "open file dialog" box of the Win32 API. Such a thing just doesn't exist on the web. Web servers aren't built for this task. You'll have to code the entire graphic form, somehow using Web Server Controls... then populate the controls with the directory and file information. Then code all the events for when a user clicks a file or folder, each of which will require a server round-trip.
It's a big, big project. I think you'd be much better off making your project conform to the way the web works: give your users a list of hyperlinks.
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