View Multiple Binary Files(Images)

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  • Arun
    #1

    View Multiple Binary Files(Images)

    Hi,

    I have simple question to ask. How to write multiple Binary files to the
    Browser using Asp.Net and Visual C#.net

    I have seen examples where single binary file is written to browser.

    -Regards
    Arun


    Tags: None
    • Steven Cheng[MSFT]
      #2
      RE: View Multiple Binary Files(Images)

      Hi Arun,

      Welcome to ASPNET newsgroup.
      As for the writing multi-file to browser, do you mean writing multiple
      file stream into asp.net page's response stream, like we provide file
      downloading functionality? If so, I'm afraid this is not possible because
      the HTTP response has its standard structure which force it should has a
      definite content-type, for example "text/xml" , "text/html",
      "applicatio n/msword"... So we could only contains single stream in each
      response. Even though you can manually write multi file stream into the
      asp.net's response stream and specify a ambigous content-type, the
      clientside browser won't be able to correctly handle it. In addition, I'm
      wondering what's your detailed requirement on this , I think we may try
      looking for some other means to bypass it. If you have any other questions
      or ideas, please feel free to post here. Thanks,

      Regards,

      Steven Cheng
      Microsoft Online Support

      Get Secure! www.microsoft.com/security
      (This posting is provided "AS IS", with no warranties, and confers no
      rights.)



      --------------------
      | From: "Arun" <arun@intersigh tglobal.com>
      | Subject: View Multiple Binary Files(Images)
      | Date: Fri, 2 Sep 2005 11:58:08 +0530
      | Lines: 11
      | X-Priority: 3
      | X-MSMail-Priority: Normal
      | X-Newsreader: Microsoft Outlook Express 6.00.2800.1506
      | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506
      | Message-ID: <OKO2Hc4rFHA.46 0@TK2MSFTNGP15. phx.gbl>
      | Newsgroups: microsoft.publi c.dotnet.framew ork.aspnet
      | NNTP-Posting-Host: dsl-kk-070.51.101.203. touchtelindia.n et 203.101.51.70
      | Path: TK2MSFTNGXA01.p hx.gbl!TK2MSFTN GP08.phx.gbl!TK 2MSFTNGP15.phx. gbl
      | Xref: TK2MSFTNGXA01.p hx.gbl
      microsoft.publi c.dotnet.framew ork.aspnet:1219 32
      | X-Tomcat-NG: microsoft.publi c.dotnet.framew ork.aspnet
      |
      | Hi,
      |
      | I have simple question to ask. How to write multiple Binary files to the
      | Browser using Asp.Net and Visual C#.net
      |
      | I have seen examples where single binary file is written to browser.
      |
      | -Regards
      | Arun
      |
      |
      |

        Comment

        • Arun
          #3
          Re: View Multiple Binary Files(Images)

          Hi,

          I want to show two images or more in the browser. That's what I meant by
          multi-file.

          I will give you an example. We would stored many (around 10000) images in
          hard-disk.
          For a particular HTTP request we may have to fetch multiple images(jpg,gif)
          and display it in browser.

          We don't want to keep these images in Virtual Directory.

          Hope you understood our needs.

          -Regards
          Arun



          "Steven Cheng[MSFT]" <stcheng@online .microsoft.com> wrote in message
          news:ujYnLK7rFH A.3540@TK2MSFTN GXA01.phx.gbl.. .[color=blue]
          > Hi Arun,
          >
          > Welcome to ASPNET newsgroup.
          > As for the writing multi-file to browser, do you mean writing multiple
          > file stream into asp.net page's response stream, like we provide file
          > downloading functionality? If so, I'm afraid this is not possible because
          > the HTTP response has its standard structure which force it should has a
          > definite content-type, for example "text/xml" , "text/html",
          > "applicatio n/msword"... So we could only contains single stream in each
          > response. Even though you can manually write multi file stream into the
          > asp.net's response stream and specify a ambigous content-type, the
          > clientside browser won't be able to correctly handle it. In addition, I'm
          > wondering what's your detailed requirement on this , I think we may try
          > looking for some other means to bypass it. If you have any other[/color]
          questions[color=blue]
          > or ideas, please feel free to post here. Thanks,
          >
          > Regards,
          >
          > Steven Cheng
          > Microsoft Online Support
          >
          > Get Secure! www.microsoft.com/security
          > (This posting is provided "AS IS", with no warranties, and confers no
          > rights.)
          >
          >
          >
          > --------------------
          > | From: "Arun" <arun@intersigh tglobal.com>
          > | Subject: View Multiple Binary Files(Images)
          > | Date: Fri, 2 Sep 2005 11:58:08 +0530
          > | Lines: 11
          > | X-Priority: 3
          > | X-MSMail-Priority: Normal
          > | X-Newsreader: Microsoft Outlook Express 6.00.2800.1506
          > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506
          > | Message-ID: <OKO2Hc4rFHA.46 0@TK2MSFTNGP15. phx.gbl>
          > | Newsgroups: microsoft.publi c.dotnet.framew ork.aspnet
          > | NNTP-Posting-Host: dsl-kk-070.51.101.203. touchtelindia.n et 203.101.51.70
          > | Path: TK2MSFTNGXA01.p hx.gbl!TK2MSFTN GP08.phx.gbl!TK 2MSFTNGP15.phx. gbl
          > | Xref: TK2MSFTNGXA01.p hx.gbl
          > microsoft.publi c.dotnet.framew ork.aspnet:1219 32
          > | X-Tomcat-NG: microsoft.publi c.dotnet.framew ork.aspnet
          > |
          > | Hi,
          > |
          > | I have simple question to ask. How to write multiple Binary files to the
          > | Browser using Asp.Net and Visual C#.net
          > |
          > | I have seen examples where single binary file is written to browser.
          > |
          > | -Regards
          > | Arun
          > |
          > |
          > |
          >[/color]


            Comment

            • Steven Cheng[MSFT]
              #4
              Re: View Multiple Binary Files(Images)

              Hi Arun,

              Have you had a chance to see my last reply or have you got any progress on
              this issue? If there're anything else we can help, please feel free to post
              here. Thanks,

              Steven Cheng
              Microsoft Online Support

              Get Secure! www.microsoft.com/security
              (This posting is provided "AS IS", with no warranties, and confers no
              rights.)

              --------------------
              | X-Tomcat-ID: 32921182
              | References: <OKO2Hc4rFHA.46 0@TK2MSFTNGP15. phx.gbl>
              <ujYnLK7rFHA.35 40@TK2MSFTNGXA0 1.phx.gbl>
              <#EYGDi7rFHA.20 64@TK2MSFTNGP09 .phx.gbl>
              | MIME-Version: 1.0
              | Content-Type: text/plain
              | Content-Transfer-Encoding: 7bit
              | From: stcheng@online. microsoft.com (Steven Cheng[MSFT])
              | Organization: Microsoft
              | Date: Mon, 05 Sep 2005 02:26:16 GMT
              | Subject: Re: View Multiple Binary Files(Images)
              | X-Tomcat-NG: microsoft.publi c.dotnet.framew ork.aspnet
              | Message-ID: <3Q8bFFcsFHA.12 04@TK2MSFTNGXA0 1.phx.gbl>
              | Newsgroups: microsoft.publi c.dotnet.framew ork.aspnet
              | Lines: 130
              | Path: TK2MSFTNGXA01.p hx.gbl
              | Xref: TK2MSFTNGXA01.p hx.gbl
              microsoft.publi c.dotnet.framew ork.aspnet:1223 60
              | NNTP-Posting-Host: TOMCATIMPORT1 10.201.218.122
              |
              | Thanks for your response Arun,
              |
              | For displaying multiple images in webbrowser, currently the only means is
              | through the <img> html element, however, when we use <img> elements in
              our
              | web page, that dosn't means the page which contain the <img> tags will
              | contain all the binary stream of all those referenced images. At runtime,
              | the browser will action like follow:
              |
              | 1. Browser request the web page and retrieve all the html content of that
              | page and rendering in browser.
              |
              | 2. when we meet a <img> tag, it will lookup the "src" link and make new
              | request to the remote server to retrieve image.
              |
              | So, as for your scenario, I think you can consider the following means:
              |
              | 1. Make a custom HttpHandler which will help retrieve image stream from
              | your server's hard disk and write response stream out. Of course, each
              | request can output only a sincle image stream.
              |
              | 2. In your web page, you can use <img> tag to reference image stream
              | through the httphandler's url (with different qureystring parameters
              | according to the image you want to retrieve).
              |
              | Here is a tech article discussing on building such a httphandler in
              asp.net
              | 1.x:
              |
              | #Using ASP.NET HTTP Handlers to create a photo album
              |
              http://www.microsoft.com/belux/nl/ms...et/httphandler.
              | mspx
              |
              | Hope helps. Thanks,
              |
              | Regards,
              |
              | Steven Cheng
              | Microsoft Online Support
              |
              | Get Secure! www.microsoft.com/security
              | (This posting is provided "AS IS", with no warranties, and confers no
              | rights.)
              |
              |
              |
              | --------------------
              | | From: "Arun" <arun@intersigh tglobal.com>
              | | References: <OKO2Hc4rFHA.46 0@TK2MSFTNGP15. phx.gbl>
              | <ujYnLK7rFHA.35 40@TK2MSFTNGXA0 1.phx.gbl>
              | | Subject: Re: View Multiple Binary Files(Images)
              | | Date: Fri, 2 Sep 2005 17:53:11 +0530
              | | Lines: 81
              | | X-Priority: 3
              | | X-MSMail-Priority: Normal
              | | X-Newsreader: Microsoft Outlook Express 6.00.2800.1506
              | | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506
              | | Message-ID: <#EYGDi7rFHA.20 64@TK2MSFTNGP09 .phx.gbl>
              | | Newsgroups: microsoft.publi c.dotnet.framew ork.aspnet
              | | NNTP-Posting-Host: dsl-kk-070.51.101.203. touchtelindia.n et 203.101.51.70
              | | Path: TK2MSFTNGXA01.p hx.gbl!TK2MSFTN GP08.phx.gbl!TK 2MSFTNGP09.phx. gbl
              | | Xref: TK2MSFTNGXA01.p hx.gbl
              | microsoft.publi c.dotnet.framew ork.aspnet:1219 86
              | | X-Tomcat-NG: microsoft.publi c.dotnet.framew ork.aspnet
              | |
              | | Hi,
              | |
              | | I want to show two images or more in the browser. That's what I meant by
              | | multi-file.
              | |
              | | I will give you an example. We would stored many (around 10000) images
              in
              | | hard-disk.
              | | For a particular HTTP request we may have to fetch multiple
              | images(jpg,gif)
              | | and display it in browser.
              | |
              | | We don't want to keep these images in Virtual Directory.
              | |
              | | Hope you understood our needs.
              | |
              | | -Regards
              | | Arun
              | |
              | |
              | |
              | | "Steven Cheng[MSFT]" <stcheng@online .microsoft.com> wrote in message
              | | news:ujYnLK7rFH A.3540@TK2MSFTN GXA01.phx.gbl.. .
              | | > Hi Arun,
              | | >
              | | > Welcome to ASPNET newsgroup.
              | | > As for the writing multi-file to browser, do you mean writing multiple
              | | > file stream into asp.net page's response stream, like we provide file
              | | > downloading functionality? If so, I'm afraid this is not possible
              | because
              | | > the HTTP response has its standard structure which force it should
              has a
              | | > definite content-type, for example "text/xml" , "text/html",
              | | > "applicatio n/msword"... So we could only contains single stream in
              | each
              | | > response. Even though you can manually write multi file stream into
              the
              | | > asp.net's response stream and specify a ambigous content-type, the
              | | > clientside browser won't be able to correctly handle it. In
              addition,
              | I'm
              | | > wondering what's your detailed requirement on this , I think we may
              try
              | | > looking for some other means to bypass it. If you have any other
              | | questions
              | | > or ideas, please feel free to post here. Thanks,
              | | >
              | | > Regards,
              | | >
              | | > Steven Cheng
              | | > Microsoft Online Support
              | | >
              | | > Get Secure! www.microsoft.com/security
              | | > (This posting is provided "AS IS", with no warranties, and confers no
              | | > rights.)
              | | >
              | | >
              | | >
              | | > --------------------
              | | > | From: "Arun" <arun@intersigh tglobal.com>
              | | > | Subject: View Multiple Binary Files(Images)
              | | > | Date: Fri, 2 Sep 2005 11:58:08 +0530
              | | > | Lines: 11
              | | > | X-Priority: 3
              | | > | X-MSMail-Priority: Normal
              | | > | X-Newsreader: Microsoft Outlook Express 6.00.2800.1506
              | | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506
              | | > | Message-ID: <OKO2Hc4rFHA.46 0@TK2MSFTNGP15. phx.gbl>
              | | > | Newsgroups: microsoft.publi c.dotnet.framew ork.aspnet
              | | > | NNTP-Posting-Host: dsl-kk-070.51.101.203. touchtelindia.n et
              | 203.101.51.70
              | | > | Path:
              TK2MSFTNGXA01.p hx.gbl!TK2MSFTN GP08.phx.gbl!TK 2MSFTNGP15.phx. gbl
              | | > | Xref: TK2MSFTNGXA01.p hx.gbl
              | | > microsoft.publi c.dotnet.framew ork.aspnet:1219 32
              | | > | X-Tomcat-NG: microsoft.publi c.dotnet.framew ork.aspnet
              | | > |
              | | > | Hi,
              | | > |
              | | > | I have simple question to ask. How to write multiple Binary files
              to
              | the
              | | > | Browser using Asp.Net and Visual C#.net
              | | > |
              | | > | I have seen examples where single binary file is written to browser.
              | | > |
              | | > | -Regards
              | | > | Arun
              | | > |
              | | > |
              | | > |
              | | >
              | |
              | |
              | |
              |
              |

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