how to display word file after upload in asp.net and c#

private void button1_Click(object sender, EventArgs e)

	{

	    //Create word document

	    Document document = new Document();

	    document.LoadFromFile(@"D:\Sample.doc"); 

	    //Save doc file.

	    document.SaveToFile("Sample.html", FileFormat.Html); 

	    //Launching the MS Word file.

	    WordDocViewer("Sample.html");

	} 

	private void WordDocViewer(string fileName)

	{

	    try

	    {

	        System.Diagnostics.Process.Start(fileName);

	    }

	    catch { }

	}

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<table width="100%">

            <tr>

                <td>

                    Select WORD file to display:<br />

                    <asp:FileUpload ID="FileUpload1" runat="server" />

                    <br />

                    <asp:Button ID="Button1" runat="server" Text="Convert" onclick="Button1_Click" />

                </td>

            </tr>

            <tr>

                <td>

                    <div id="report_container" runat="server"></div>

                </td>

            </tr>

        </table>

using Docs.Word;

using System.IO;



protected void Button1_Click(object sender, EventArgs e)

    {

        Document doc = null;

        string name = Path.GetFileNameWithoutExtension(FileUpload1.PostedFile.FileName);

        string ext = Path.GetExtension(FileUpload1.PostedFile.FileName);

        try

        {

            switch (ext.ToLower())

            {

                case ".docx": doc = Document.ReadDOCX(FileUpload1.PostedFile.InputStream); break;

                case ".doc": doc = Document.ReadDOC(FileUpload1.PostedFile.InputStream); break;

                case ".rtf": doc = Document.ReadRTF(FileUpload1.PostedFile.InputStream); break;

                case ".txt": doc = Document.ReadTXT(FileUpload1.PostedFile.InputStream); break;

                default: report_container.InnerHtml = "Please select docx, doc or rtf file"; return;

            }

        }

        catch (Exception ex)

        {

            report_container.InnerHtml = ex.Message;

            return;

        }

        report_container.InnerHtml = doc.WriteHTML(System.Text.Encoding.ASCII);

    }

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