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Posted 28 Oct 2008


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How To Play SWF File In Asp.Net

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3.82 (27 votes)
28 Oct 2008CPOL
This article demostrates how to play an swf (flash) file in


This article demonstrates how to play an swf file (flash) in  <o:p>

There is some additional requirement that browser must have plug-in installed in order make this work.

In this project you need to upload a swf file and then click on the uplaod file to run the uploaded file.<o:p>

Using the code<o:p>

It is very simple to create and to paly swf file.<o:p>

Following are the steps to create and play swf file. <o:p>

  • Step 1. Open Microsoft Visual Studio. Create a web site and named it PlaySwfFile.<o:p>
  • Step 2. Create an .aspx file and named it PlaySwfFile.aspx. <o:p>
  • Step 3. Design the form that looks like this. <o:p>
  • swfImage.gif 
  • Step 4. Or copy and paste the code in  PlaySwfFile.aspx file inside the <body> tag <o:p>
   <form id="form1" runat="server">
        <table width="410px">
                <td align="center"  valign="top">
                    <table border="0" cellpadding="2" cellspacing="3" style="width: 400px;">
                            <td valign="top" style="width: 150px">
                            <td align="left" valign="top" style="width: 200px">
                                <asp:Label ID="lblMsg" CssClass="tdMessage"  Text ="" runat="server"></asp:Label></td>
                            <td valign="top" class="tdText" align="left">
                              <nobr> Select a file</nobr> </td>
                            <td valign="top" style="text-align: left">
                                <asp:FileUpload ID="fUpload" runat="server" Width="300px" /></td>
                            <td align="left" valign="top">
                                <asp:Button ID="btnUpload" runat="server" Text="Upload" OnClick="btnUpload_Click" /></td>
                            <td align="left" valign="top">
                                <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase=",0,19,0"

                                    width="200" height="100">
                                    <param name="movie" value="<% =swfFileName%>" />
                                    <param name="quality" value="high" />
                                    <embed src="<% =swfFileName%>" quality="high" pluginspage=""

                                        type="application/x-shockwave-flash" width="200" height="100"></embed>

 //  Now Add a namespace System.IO; to the   PlaySwfFile.aspx.cs file 

// Declare a variable above page_load() method  

  public string swfFileName = "";

 // Now double click on the upload button and ddd the following code below   

protected void btnUpload_Click(object sender, EventArgs e)
        if (fUpload.FileContent.Length >0 && IsVaildFile())
            string Path = GetUplaodImagePhysicalPath();
            DirectoryInfo dirUploadImage = new DirectoryInfo(Path);
            if (dirUploadImage.Exists == false)
            string fileUrl = Path + fUpload.PostedFile.FileName;
            swfFileName = "image/" + fUpload.PostedFile.FileName;
    private bool IsVaildFile()
        string swfExt = System.IO.Path.GetExtension(fUpload.PostedFile.FileName);
        switch (swfExt)
            case ".swf":
                return true;
                    lblMsg.Text = "Please select only swf file.";
                    return false;

    string GetUplaodImagePhysicalPath()
        return System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "image\\";


Now run the project and upoad a swf file and click on upload button. you will get the result.<o:p>

Points to Remember <o:p>

In the .cs page you will get a public variable named swfFileName. This is the variable which is used in the aspx page to assign as the source of <object>. <o:p>

Here <object>  serves as swf player.<o:p>

In aspx file the public variable swfFileName is accessed as <% =swfFileName%>  <o:p>



This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Najmul Hoda
Software Developer (Senior) Birla Soft
India India
Najmul Hoda is a Master of Computer Application.
He has worked with .Net technologies in web development and has been programming since 2007.
He is very comfortable in various languages,RDBMS,C# to VB.NET with Access & MS SQLServer from Javascript,AJAX to ASP.NET, MVC.

Khata Wata (Free Online Udhar Khata, Bahi Khata)
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Comments and Discussions

QuestionMovie not loaded message when pointing embed src to "d:\abc\story.swf" Pin
SURESH_KATARI7-Jul-14 20:20
MemberSURESH_KATARI7-Jul-14 20:20 
QuestionHow to convert and implement this code in VB9 Pin
rkear8917-Jan-13 3:04
Memberrkear8917-Jan-13 3:04 
Questionthanks Pin
Raj kumar Rajbhar6-Nov-12 18:03
MemberRaj kumar Rajbhar6-Nov-12 18:03 
GeneralMy vote of 5 Pin
Renju Vinod19-Aug-12 22:36
professionalRenju Vinod19-Aug-12 22:36 
Questionthnks Pin
abhay09810-Feb-12 19:20
Memberabhay09810-Feb-12 19:20 
BugSwf not playing in ie Pin
D.R.Chakravarthy18-Oct-11 23:59
MemberD.R.Chakravarthy18-Oct-11 23:59 
Hi Najmul,
I am trying to embed a flash swf file but it is not displaying any thing and it keeps on running and never diaplys it. When I right click the object it has "Movie not loaded..." in disabled state.
Please help.

Thanks in Advance,
QuestionHow To Play SWF File In Asp.Net - Error: "The given path's format is not supported." Pin
Wijesinghe4-Aug-11 20:10
MemberWijesinghe4-Aug-11 20:10 
AnswerRe: How To Play SWF File In Asp.Net - Error: "The given path's format is not supported." Pin
mohmed216-Feb-12 21:35
Membermohmed216-Feb-12 21:35 
AnswerRe: How To Play SWF File In Asp.Net - Error: "The given path's format is not supported." Pin
AndrewTMyers31-Jul-12 5:35
MemberAndrewTMyers31-Jul-12 5:35 
GeneralRe: How To Play SWF File In Asp.Net - Error: "The given path's format is not supported." Pin
AndrewTMyers31-Jul-12 5:39
MemberAndrewTMyers31-Jul-12 5:39 
QuestionNotSupported Exception was unhandled by user code Pin
akshaychawla10-May-11 23:28
Memberakshaychawla10-May-11 23:28 
AnswerRe: NotSupported Exception was unhandled by user code Pin
Wijesinghe4-Aug-11 20:07
MemberWijesinghe4-Aug-11 20:07 
Generalquestion Pin
shivshankar pal26-Mar-11 3:04
Membershivshankar pal26-Mar-11 3:04 
Generalnice and simple code Pin
ripalsoni14-Mar-11 9:09
Memberripalsoni14-Mar-11 9:09 
Questiona question Pin
ahatamirad9-Nov-10 20:15
Memberahatamirad9-Nov-10 20:15 
GeneralMy vote of 5 Pin
deepak chaudhari snk14-Oct-10 0:03
Memberdeepak chaudhari snk14-Oct-10 0:03 
GeneralNice answer Pin
walsing30-Jul-10 4:33
Memberwalsing30-Jul-10 4:33 
GeneralRe:How to play SWF file in Pin
yadav awadhesh24-Mar-09 18:17
Memberyadav awadhesh24-Mar-09 18:17 
Generalnice one again Pin
Vimalsoft(Pty) Ltd13-Feb-09 2:20
professionalVimalsoft(Pty) Ltd13-Feb-09 2:20 
Generalcustom logo Pin
kris4413-Jul-11 4:43
Memberkris4413-Jul-11 4:43 

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