// Copyright 2007 ESRI
// 
// All rights reserved under the copyright laws of the United States
// and applicable international laws, treaties, and conventions.
// 
// You may freely redistribute and use this sample code, with or
// without modification, provided you include the original copyright
// notice and use restrictions.
// 
// See the use restrictions.
//

using System;
using System.Data;
using System.Configuration;
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.Collections;
using ESRI.ArcGIS.ADF.Web.DataSources;

public partial class _Default : System.Web.UI.Page, ICallbackEventHandler 
{
    public string sCallBackFunctionInvocation;
    private string returnstring = ""; 

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Session["GraphicColor"] = "Red";
            Session["GraphicType"] = "Circle";
        }
        DropDownList1.Attributes.Add("onchange", "ChangeDDLColor()");
        DropDownList2.Attributes.Add("onchange", "ChangeDDLType()");

        sCallBackFunctionInvocation = Page.ClientScript.GetCallbackEventReference(this, "message", "HandleResponse", "context", "postBackError", true);
      
    }

    #region ICallbackEventHandler Members

    string ICallbackEventHandler.GetCallbackResult()
    {
        return returnstring;
    }

    void ICallbackEventHandler.RaiseCallbackEvent(string eventArgs)
    {
        char[] parser_char = { ',' };

        if (eventArgs.Contains("ddl_color"))
        {
            string[] messages = eventArgs.Split(parser_char);
            string graphiccolor = messages[1];
            Session["GraphicColor"] = graphiccolor;
        }
        else if (eventArgs.Contains("ddl_type"))
        {
            string[] messages = eventArgs.Split(parser_char);
            string graphictype = messages[1];
            Session["GraphicType"] = graphictype;
        }
    }

    #endregion

    protected void Button1_Click(object sender, EventArgs e)
    {
        HttpPostedFile MyFile = FileUpload1.PostedFile;
        int FileLen;
        System.IO.Stream MyStream = null;

        FileLen = MyFile.ContentLength;
        byte[] input = new byte[FileLen];

        MyStream = MyFile.InputStream;

        System.IO.StreamReader reader;
        reader = new System.IO.StreamReader(MyStream, System.Text.Encoding.ASCII);
        string str;

        System.Collections.ArrayList alist = new System.Collections.ArrayList();
        char[] parser_char = { ',' };
        do
        {
            str = reader.ReadLine();
            if (str != null)
            {
                string[] messages = str.Split(parser_char);

                double x = Double.Parse(messages[0]);
                double y = Double.Parse(messages[1]);

                ESRI.ArcGIS.ADF.Web.Geometry.Point point = new ESRI.ArcGIS.ADF.Web.Geometry.Point(x, y);
                alist.Add(point);

                System.Diagnostics.Debug.WriteLine(str);
            }
        } while (str != null);

        IEnumerable gfc = Map1.GetFunctionalities();
        ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapResource gResource = null;
        foreach (IGISFunctionality gfunc in gfc)
        {
            if (gfunc.Resource is ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapResource)
            {
                gResource = (ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapResource)gfunc.Resource;
                break;
            }
        }

        if (gResource == null)
            return;

        ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer glayer = null;

        if (glayer == null)
        {
            glayer = new ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer();
            glayer.TableName = "Uploaded Points";
            gResource.Graphics.Tables.Add(glayer);
        }

        foreach (ESRI.ArcGIS.ADF.Web.Geometry.Point pnt in alist)
        {
            ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleMarkerSymbol sms = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleMarkerSymbol();
            sms.Color = System.Drawing.Color.FromName((string)Session["GraphicColor"]);
            string graphictype = (string)Session["GraphicType"];
            if (graphictype == "Circle")
            {
                sms.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Circle;
            }
            else if (DropDownList2.SelectedValue == "Square")
            {
                sms.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Square;
            }
            else
            {
                sms.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Star;
            }
            sms.Width = 14;
            sms.OutlineColor = System.Drawing.Color.Black;

            ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement ge = new ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement(pnt, sms, null);

            glayer.Add(ge);
        }

        if (Map1.ImageBlendingMode == ESRI.ArcGIS.ADF.Web.UI.WebControls.ImageBlendingMode.Browser)
        {
            Map1.RefreshResource(gResource.Name);
        }
        else
        {
            Map1.Refresh();
        }

        Toc1.Refresh();
        Map1.CallbackResults.CopyFrom(Toc1.CallbackResults);
    }
}