So, I've created my wonderful winforms app that I want to unleash upon the world, and now I am trying to create a simple website to host some basic information and link to the setup file (msi installer file )....
I have a button on the asp.net page and the setup file setupApp.msi in same folder as the asp.net page. I am currently trying the following:
Response.Redirect("http://./SetupApp.msi");
But this best guess at what to do is not working. Is there something wrong with Mime types here? What do I need to put in the click event to allow users to download this file?
The path you are passing in to the method is not valid (there's no server name called ".").
You can pass in a relative path and it should work fine because ASP.NET will resolve the path:
Response.Redirect("SetupApp.msi")
Or if it's not in the same folder, try one of these:
Response.Redirect("../Downloads/SetupApp.msi")
Response.Redirect("~/SomeFolder/SetupApp.msi")
Keep in mind that you don't necessarily have to do the whole redirect at all. Instead of writing code in an ASPX file you could just have a link to your MSI:
Download my app!
Related
Am developing asp .Net web application.
In one of my aspx file am using file to download using generic handler. Everything works great. But when am testing i felt a strange problem. That, if am uploading a image or document with file name containing aspx character for Eg; aspxphoto as file name.
Uploading doesnt have any any problem but when i try to download it is throwing error in Generic handler file as
Object reference not set to an instance of an object.
Can anyone help me why this problem happends and how can i fix it?
You will not be able to do this. The IIS handler wants to "handle" the ASPX. You should simply not allow it, or if you have to, rename it to .aspx.uploaded or something. If you allowed, it you could open yourself to hacking.
As another option, you may be able to create a virtual that implements ("no processing") - possibly using the HTTP Handler under the virtual and just disabling script / execute permissions (under handler >> Edit Feature Permission >> Script OR under Virtual >> Edit permissions >> Special >> Turn Execute off.
I would not recommend the last, since it will add complexity when migrating between test and live AND for recovery (DR).
how can we find the path of browser default downloads folder in c# / asp.net?
For example I can get the path of user desktop like :
Environment.GetFolderPath(Environment.SpecialFolder.Desktop)
Thanks..
You can't find that out in a web application. It's up to the user to decide which browser to use and how to configure it and where to save downloaded files by default and you have absolutely no way of interfering or even knowing his choices from a web application.
First of all looking at MSDN on Environment.SpecialFolder there is no download folder, and the reason is that this is different for every browser.
http://msdn.microsoft.com/en-us/library/system.environment.specialfolder.aspx
And there have nothing to do with asp.net, if you look it from the server side you just get a directory on nowhere, meaning that this have nothing to do with the web application that run under the pool.
What you can do
You can use the HttpRuntime.AppDomainAppPath and use it to know where your site lives, and there place a "download" directory and use this full path:
HttpRuntime.AppDomainAppPath + "download/"
for download/upload files.
I'm working on an ASP.NET web application for our corporate intranet users. I have a form where a user should provide a path to the file on the local network (something like "\localServer\someFolder\someFile.ext") without uploading the actual file. The issue is that users don't want to type the whole file path and want to use some kind of visual browse dialog.
The standard HTML <input type=file> element allows to browse for a file, but most of the browsers (except for IE) don't allow to access file's full path, so I think it should be done by some external component like Silverlight, Flash, Java applet etc.
I tried to do it with Silverlight, but I'm getting a SecurityException when trying to access file's full path using Silverlight's OpenFileDialog class.
This java applet http://jumploader.com/demo_images.html seems to do something similar to what I'm looking for, but it's focused on uploading files - I only need to be able to get file's full path and pass it to the server as a string.
Any suggestions would be appreciated.
Telerik ASP.NET AJAX RadFileExplorer has the functionality you're looking for:
http://www.telerik.com/products/aspnet-ajax/fileexplorer.aspx
You can use their Custom File Content Provider to hook the GUI to your server's file system.
http://demos.telerik.com/aspnet-ajax/fileexplorer/examples/server-sideapi/dbfilebrowsercontentprovider/defaultcs.aspx
This should be possible with Flash's uploading capabilities. SWFUpload has an API that you may be able to access from JavaScript to extract the selected file name without actually uploading anything. See docs here, for example getFile():
getFile is used to retrieve a File Object from the queue. The file retrieved by passing in a file id (the id property from a file object) or a file index (the index property from a file object).
Is it possible to programmatically resolve a URL to a file using ASP.NET and IIS? Specifically I'd like the file to be outside of my Virtual Directory (could be anywhere on the local file system). So if a URL comes in like http://mysite/somepicture.jpg I'd like to be able to return c:\mypicture.jpg. I looked into creating an IHttpModule for URL rewriting but that isn't quite what I need - it's limited to URLs within the existing site.
You cannot achieve it by URL rewriting as the file is not hosted on your Web site. You should use Response.WriteFile method in an HttpModule or HttpHandler to manually stream the file to the user.
I would like to add to Mehrdad's response by saying that you need to make sure your app has rights to the folder the files you want live in. That way you can dish it out as Mehrdad suggested.
I'm using a web deployment project in order to precompile my ASP.NET 3.5 web project. It creates a single extra DLL for the code in aspx and ascx files. And, for every aspx file there is a placeholder aspx file (empty) which needs to be copied to the server.
I'd like to simplify the deployment process. Is there a way (configuring the IIS site and adding some sort of http handlers etc.) to get rid of these aspx placeholders?
Also, I'd like to know if there is a way to get rid of the .compiled files in the bin folder. It would make the deployment process smoother.
Thanks!
I discovered it by myself. It is much easier than I thought (IIS 6.0):
In Internet Information Manager go to the property page of the site, then chose the tab "Home Directory" and click on the button "Configuration...".
Click "Edit..." for the .aspx ISAPI extension and uncheck "Verify that file exists". At this point, no aspx file is needed anymore.
Update
One important thing: I had to create an empty "default.aspx" file in the root of the application in order to allow the default document for requests like "http://www.example.com/" (without calling an aspx).
Update 2
Another very important thing: if you're using ASP.NET Ajax PageMethods, then you have to keep the aspx placeholder of that page. If you're omitting the file, a javascript 'PageMethods is undefined' error will be thrown on the browser.
IF it is possible, then it will require, at the least, the mapping in IIS of all possible requests to the asp.net engine. Not very difficult. Then, a HttpHandler should be possible to intercept all incoming requests. That handler should then be able to dynamically load compiled page classes and render them. You'd basically have a single engine DLL that serves page content.
But as you might have noticed from all the should's, it's not a simple thing to accomplish, and I doubt that it's really worth the trouble. What exactly is wrong with these placeholder files being present?