using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

using System.Xml;
using System.Xml.Xsl;
using System.Xml.XPath;
using System.IO;


namespace runXslt { }

public partial class Default2 : System.Web.UI.Page
{

    protected void Page_Load(object sender, EventArgs e)
    {

    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        // Specify the path on the server to
        // save the uploaded file to.
        String savePath = "C:/temp/";     

        // Get the name of the file to upload.
        String fileName = FileUpload1.FileName;

        // Get the extension of the uploaded file.
        string extension = System.IO.Path.GetExtension(fileName);

        // Before attempting to perform operations
        // on the file, verify that the FileUpload 
        // control contains a file.
        if (FileUpload1.HasFile)
        {
            if ((extension == ".xml"))
            {                     
                // Append the name of the file to upload to the path.
                savePath += fileName;
                               
                // Call the SaveAs method to save the 
                // uploaded file to the specified path.
                // If a file with the same name
                // already exists in the specified path,  
                // the uploaded file overwrites it.
                FileUpload1.SaveAs(savePath);
           
                // Notify the user of the name of the newly saved file
                Label1.Text = "SUCCESS! - Your file was uploaded and converted as " + fileName;
                

                //call XSLT transform
                ApplyXSLTransformation();
            }

            else
            {
                // Notify the user why their file was not uploaded.
                Label1.Text = "ERROR - Your file was not uploaded or converted because " + 
                    fileName + "it does not have a .xml extension.";

            }
        }

        else
        {
            // Notify the user that a file was not uploaded.
            Label1.Text = "ERROR - You did not specify a file to upload.";
        }
    }

    protected void LinkButton1_Click(object sender, EventArgs e)
    {

    }

    private string ApplyXSLTransformation()
    {
        string strHtml;

        string strXstFile = Server.MapPath("test.xslt");
        XslCompiledTransform x = new XslCompiledTransform();

        // Load the XML - use (Server.MapPath("/temp/" + FileUpload1.FileName));
        //if using server i.e. not local machine
        XPathDocument doc = new XPathDocument(("C:/temp/" + FileUpload1.FileName));

        // Load the style sheet.
        XslCompiledTransform xslt = new XslCompiledTransform();
        xslt.Load(strXstFile);
        MemoryStream ms = new MemoryStream();
        XmlTextWriter writer = new XmlTextWriter(ms, null);
        StreamReader rd = new StreamReader(ms);
        xslt.Transform(doc, writer);
        ms.Position = 0;
        strHtml = rd.ReadToEnd();
        rd.Close();
        ms.Close();
        Server.Transfer(Server.MapPath("C:/temp/dl" + FileUpload1.FileName));
        return strHtml;
       
    }
}