HttpHandlers / Modules :: Reading Video From Byte Stream Using Handler?
Jan 1, 2011
i have a application which use to store video in sql databasei want to have a function which should have return type of video so that i can pass it to player in next page, for that i have retrived it as byte stream but dont know how to return it as video file.if i am going wrong then suggest me some other way.Note video are based on authentication so no way to switch to file system
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Dec 17, 2010
I have this httpHandler that reads a varbinary(MAX) field from the database and stream it as an FLV video. Now, how do I implement sequential access in this handler? I need it to read bytes in chunks and stream it.I call the id of the video that is to be played, e.g ViewFilm.ashx?id=5I know I'm supposed to add CommandBehavior.SequentialAcces in the ExecuteReader(), but the rest I can't get to work.I also read that someone had a problem with this but does it concern me?[URL]
[Code]....
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Mar 16, 2010
I have a url that points directly to a wav file. Id like to extract the file from the url and save it to a file on our file system.
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Jan 20, 2011
I have an httpmodule and it has a handler for OnEndRequest. I am trying to write the HttpContext.Response.OutputStream to a file. I am trying to use the Read method of it. But when it is called the exception message i get is "Specified method is not supported". So i am not able to do what i want that is, write the response to a file on the disk. I am able to write the HttpContext.Request.InputStream to a file using its Read method which i do in a handler for OnBeginRequest.
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Mar 30, 2010
I am wanting to stream flash video files from IIS to an .aspx page. I have added the video/x-flv mime type to IIS, but am still having problems. I have seen a few articles about using HTTP Handlers, but they seem to be inconsistent and I'm not exactly sure why they woul dbe needed.
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Mar 7, 2011
I have a form with a server side button, clicking on which session variable is added Session.Add("ABC","123")After this (in same postback event), I redirect user to a site, which returns user back to my site. And I still have session "abc" available to me.NOW, In another scenario I am trying to do the same thing but in a handler. I.e.User clicks a clinet side button which redirects users to sameSite.xyz. Handler of xyz adds session variable like above and redirects user to the other site. But, this time when user returns back from other site, my session is lost. How can I imitate scenario 1 with handlers?
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Dec 29, 2010
v4 NET framework / ASP.NET
I am trying to retrieve an image created by a handler. Here is the code for the handler:
[Code]....
Here is how i call it from an aspx file:
[Code]....
The image is missing from the webpage generated.
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Mar 4, 2011
I have 50 sites for 50 states. When a company uploads their contact info their image is stored in a folder relative to the site they are uploading from. When you view this company on the other sites the image is not present. So, I was thinking I would store the path of where the file is originally and then access it through the handler, but I can't seem to get the handler to recognize locations other than virtual directories.
[Code]....
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Jun 30, 2010
a silverlight app sends an image to a webservice which store the image in a database and then a handler retrieves the image from the db to display it... quite common so far.
Everything is working absolutely fine on my test server (IIS on my development machine) but, as soon as i try it on the production server : no way, the image is never displaying (in any browser). Firefox says that it cannot display it because it contains error...
I tried to download the database from the production server just after saving an image to the db and, locally, the image is displaying...
The image is in png format.
Here is my code :
[Code]....
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Jan 16, 2010
I have found very strange problem with using asynchronous request. I wrote ASP.NET handler like follows.
[Code]....
Next, i write C# client application as follows.
[Code]....
This works very fine, s == "Test1".Now i want to make nonblocking call as follows.
[Code]....
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Jul 27, 2010
I have a gridview and in it is code to display an image
[Code]....
This works fine for pass one variable. but I need to send two variables 'ImageNum' and 'refID' to the Handler.ashx page, any ideas how, tried a few things in last few hours and as yet no joy!
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Nov 18, 2010
Is it possible to add a messagebox to an ASHX Handler? I used a handler to pass data from a Web Service to an internal system and need a messagebox to pop up to ask the user to choose from one option or another.
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Nov 30, 2010
I use http handler for loading images.
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Mar 26, 2010
I wrote a generic handler like this:
[Code]....
and on the other page I would like to retrieve the database image using :
<img alt="" src="ShowImage.ashx?ID=467711" />
but I am getting nothing in this case. The picture exists and there are 91000 bytes in array.
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Apr 6, 2010
I have a HTTP handler that returns a GeoRSS feed (type of XML) when called. This handler is called from a javascript and the returning xml is consumed directly by a Virtual Earth (bing) map control on the same page. I am Encrypting/Decrypting URL parameters but any one can see the source html, copy the url and get access to the xml feed.Since the call is from javascript how can I prevent unauthorized access to the HTTP handler?
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Oct 18, 2010
i have a custom handler which captures user's book mark entry. To debug this handler, i have created a file "test1.txt" in code behind which saves the user entry. After the debug, i removed the text file (test1.txt) then re-complied the web app and deployed new DLLs for the site. But, the site is still looking for test1.txt file. i dont know how to confirm if the handler is really removed from the new DLL. Also, looked at the handler code behind file and didn't find any entry with test1.txt. So,
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Sep 8, 2010
I have created a asp.net generic handler to use it in auto-complete text box. Here is my code to it
/// <summary>
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Mar 5, 2010
I am using this root .
[Code]....
It is working absolutely fine with this root folder('myroot'). When we change root foldername to "myroot.net" handler not responding.I have checked it by RouteDebugger and it shows thatRoute: NO MATCH!Matches Current Request: True
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Aug 20, 2010
I have an Handler.ashx file and on .aspx page load it calles the .ashx file for image reading. I am attempting to pass a session from the .aspx file to the .ashx file in order to make my query of grabing the image secure. The problem is that everytime I call a session: HttpContext.Current.Session["ID"], the value is returning null or errors saying the o so commong "Object reference not set to an instance of the object". I have tried a couple ways of grabing the session:
1.) context.Session["ID"]
2.) HttpContext.Session["ID"]
3.) HttpContext.Current.Cache["ID"]
none of them are giving me the ID session set in the .aspx page. should i be using Server.Transfer instead? is there a way to grab a session variable set in a .aspx page and called in a .ashx page?
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Jan 13, 2010
I am using a handler to pull an image from the database and I need to resize the image while maintaining the aspect ratio.I have seen a few examples, but they were all pulling the image from the filesystem and not a database. This is the code I am using inside the handler to pull the image from the database:
[Code]....
Can someone point me in the right direction?
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Oct 28, 2010
I am tring to call external web service through generic handler ,post some example code for the call webservice from generic handler .
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Feb 23, 2011
As im new to this concept,i request anyone to explain in detail about configuring the custom handlers in IIS 5.1 STEP by STEP and also about mapping the extension.
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Feb 6, 2010
The iPhone sends an HTTP GET request to my web application to recieve an update for an internet calendar. The iPhone does not conform to the RFC 822 Date Format for this request. It sends the If-Modified-Since as follows:
RFC 822 format - Sun, 06 Nov 1994 08:49:37 GMT
iPhone Format - Sun, 6 Nov 1994 08:49:37 GMT
I dont know much about handlers or modules. Is it possible to write a handler or module that could intercept this request and reformat the If-Modified-Since date format to the standard. Currently when IIS recieves this request it immediately sends back a 400 Error because of this invalid format.
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May 30, 2010
i am trying to pass a value, from my .aspx form to a ashx request via a session or a cookie,
the cookie exists but in the ashx it returns a null, and same with the session value.
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Nov 28, 2010
When I have a HttpHandler class in C#/ASP.NET mapped to a file extension in IIS any file with that extension fails to download/display in web browsers (it's downloaded as a 0-byte file in some browsers and nothing at all in other browsers). After removing the application mapping for the HttpHandler in IIS so it doesn't call the IHttpHandler class in C#, the web browser downloads the file successfully.
This was tested with an IHttpHandler class in C# that has an empty ProcessRequest method.
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