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<%@ Page Language="C#" MasterPageFile="~/tpl/Demo.Master" AutoEventWireup="true" CodeBehind="SortTask.aspx.cs" Inherits="Aspose.Tasks.Demos._9.SortTask" Title="Tasks Sorting" %>
<asp:Content ID="Content1" ContentPlaceHolderID="HeaderContent" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
    Please browse a valid mpp project file and press 'Upload and Sorted
    Task View' button to upload file to server so that Aspose.Tasks reads Tasks, Sort
    Tasks and then displays Sorted Tasks.&nbsp;<br />
    <br />
    <asp:FileUpload ID="FileUpload1" runat="server" /><br />
    <br />
    <asp:Button ID="btn_up_view" runat="server" OnClick="btn_up_view_Click" Text="Upload and Sorted Task View" />
        <br />
        <%=Session["outvar_S"] %>
    <% Session["outvar_S"] = ""; %>

</asp:Content>

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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 Aspose.Tasks;
using System.IO;

namespace Aspose.Tasks.Demos._9
{
    public class ClsTask : IComparable
    {
        private Task tmpTSK;
        public ClsTask(Task ttK)
        {
            tmpTSK = ttK;
        }
        public int myID
        {
            get { return tmpTSK.Id; }
        }

        public string tName
        {
            get { return tmpTSK.Name; }
        }

        public DateTime tStart
        {
            get { return tmpTSK.Start; }
        }

        public DateTime tFinish
        {
            get { return tmpTSK.Finish; }
        }

        public bool tEstimated
        {
            get { return tmpTSK.IsEstimated; }
        }


        int IComparable.CompareTo(object x)
        {
            ClsTask tsk = (ClsTask)x;
            return this.tmpTSK.Name.CompareTo(tsk.tmpTSK.Name);
        }

    }


    public partial class SortTask : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void btn_up_view_Click(object sender, EventArgs e)
        {
            /**********  MPP File Upload block [Starts]****************/
            ///The MPP file name to be read
            string strFile = "";

            ///Upload file to server
            if (this.FileUpload1.HasFile)
            {
                if (this.FileUpload1.FileName.EndsWith(".mpp"))
                {
                    strFile = this.FileUpload1.FileName;
                    this.FileUpload1.PostedFile.SaveAs(MapPath(this.FileUpload1.FileName));
                }
                else
                {
                    ///Write html message and exit
                    Session["outVar_S"] = "<h3>Invalid file</h3>";
                    return;
                }
            }
            else
            {
                //////Write html message and exit
                Session["outVar_S"] = "<h3>No project file</h3>";
                return;
            }
            /**********  MPP File Upload block [Ends]****************/

            ///Read mpp file from the server
            ProjectReader rdr = new ProjectReader();

            Project prj = rdr.Read(new FileStream(Server.MapPath("") + "\\" + strFile, FileMode.Open));

            //Display Tasks

            ArrayList alTasks = prj.RootTask.Children;
            Session["outVar_S"] = Session["outVar_S"] + "<h2>Tasks Assigned</h2><br/>";
            if (alTasks.Count > 1)
                Session["outVar_S"] = Session["outVar_S"] + "<table border=1><tr bgcolor=blue><td><font color=white>Task ID</font></td><td><font color=white>Task Name</font></td><td><font color=white>Start Date(mm/dd)</font></td><td><font color=white>Task Duration</font></td><td><font color=white>End Date(mm/dd)</font></td><td><font color=white>Predecessor</font></td></tr>";
            else
                Session["outVar_S"] = Session["outVar_S"] + "<h3>No Tasks Found...</h3><br/>";


            ArrayList arrSort = new ArrayList();
            foreach (Task task in alTasks)
            {
                ClsTask sortTsk = new ClsTask(task);
                arrSort.Add(sortTsk);
            }
            arrSort.Sort();

            foreach (ClsTask tsk in arrSort)
            {
                Session["outVar_S"] = Session["outVar_S"] + "<tr>";
                ///Get and Write Task ID
                Session["outVar_S"] = Session["outVar_S"] + "<td>" + tsk.myID + "</td>";
                ///Get and Wrtie Task Name                
                Session["outVar_S"] = Session["outVar_S"] + "<td>" + tsk.tName + "</td>";
                ///Get and Wrtie Task Start Date
                DateTime dtStart = tsk.tStart;
                Session["outVar_S"] = Session["outVar_S"] + "<td>" + dtStart.Month + "/" + dtStart.Day + "</td>";
                ///Get and Wrtie Task Duration
                Aspose.Tasks.Calendar cal = prj.Calendar;
                //TimeSpan ts = tsk.Duration;
                DateTime dtFinish = tsk.tFinish;

                DateTime dtTemp = dtStart;
                double durationInDays = 0;
                TimeSpan ts;
                while (dtTemp < dtFinish)
                {
                    if (cal.IsDayWorking(dtTemp))
                    {
                        ts = cal.GetWorkingHours(dtTemp);
                        if (ts.TotalHours > 0)
                            durationInDays = durationInDays + ts.TotalDays * (24 / (ts.TotalHours));
                    }
                    dtTemp = dtTemp.AddDays(1);
                }
                string strDurValue = durationInDays.ToString() + "d";
                bool blnTEMP = tsk.tEstimated;
                string strEST;
                strEST = (blnTEMP) ? "?" : "";
                string strDuration = strDurValue + strEST;
                Session["outVar_S"] = Session["outVar_S"] + "<td>" + strDuration + "</td>";
                ///Get and Write Task End Date
                Session["outVar_S"] = Session["outVar_S"] + "<td>" + dtFinish.Month.ToString() + "/" + dtFinish.Day.ToString() + "</td>";
                ///Get and Write Task Predecessor
                ArrayList alLNK = prj.TaskLinks;
                foreach (TaskLink tsklnk in alLNK)
                {
                    if (tsklnk.SuccTask.Name == tsk.tName)
                        Session["outVar_S"] = Session["outVar_S"] + "<td>" + tsklnk.PredTask.Id + "</td>";
                }

                Session["outVar_S"] = Session["outVar_S"] + "</tr>";
            }
            Session["outVar_S"] = Session["outVar_S"] + "</table>";

        }

    }
}