Create manual Bar chart in HTML from Window Application

Developer can create HTML Page as a Report in bar Chart from Window Application.
THis will help to create a report sheet in bar chart as a HTML Page.

// for Chart generator
public string ChartDisplayCompMonthlySales(string[,] Data, int counter, string Charttype, string querytype)
        {
            if (Data == null) throw new ArgumentNullException("Data");
            double max1 = 0, mx1;
            int v1;
            int[] value = new int[counter];

            for (int cn = 0; cn < counter; cn++)  // Find Maximum
            {
                if (max1 < Convert.ToDouble(Data[cn, 2]))
                    max1 = Convert.ToDouble(Data[cn, 2]);
            }
            if (max1 >= 100000)
            {
                mx1 = (max1 / 10000);
                mx1 = mx1 + 1;
                mx1 = mx1 * 10000;
            }
            else
            {
                if (max1 >= 10000)
                {
                    mx1 = (max1 / 1000);
                    mx1 = mx1 + 1;
                    mx1 = mx1 * 1000;
                }
                else
                {
                    if (max1 >= 1000)
                    {
                        mx1 = (max1 / 100);
                        mx1 = mx1 + 1;
                        mx1 = mx1 * 100;
                    }
                    else
                    {
                        if (max1 >= 100)
                        {
                            mx1 = (max1 / 10);
                            mx1 = mx1 + 1;
                            mx1 = mx1 * 10;
                        }
                        else
                        {
                            if (max1 >= 10)
                            {
                                mx1 = (max1 / 1);
                                mx1 = mx1 + 1;
                                mx1 = mx1 * 1;
                            }
                            else
                                mx1 = 10;
                        }
                    }
                }
            }

            int mx2 = (int)Math.Round(Convert.ToDouble(mx1 / 6));

            for (int cn1 = 0; cn1 < counter; cn1++)
            {
                value[cn1] = ((Convert.ToInt32(Data[cn1, 2]) * 600) / (int)Math.Round(mx1));
            }

            //htmlstring11 += "
" + i * mx2 + "
";

            int temp = 0;
            int flag11 = 1;
            string htmlstrg = "
 Sales Vs Monthly Yearly Comparison 
";
            htmlstrg += "
";

        bookname1:

            if (Charttype == "book")
            {
                if (querytype == "compbook")
                    htmlstrg += "";
                else if (querytype == "comptaluka")
                    htmlstrg += "";
                else if (querytype == "compdistrict")
                    htmlstrg += "";
                else if (querytype == "compstate")
                    htmlstrg += "";
                else if (querytype == "compcustomer")
                    htmlstrg += "";
            }
            else
                htmlstrg += "";

            htmlstrg += "";

                        if (temp < counter)
                            goto bookname1;
                    }
                }
            }
            htmlstrg += "
" + Data[temp, 0] + "   
" + Data[temp, 0] + "   
" + Data[temp, 0] + "   
" + Data[temp, 0] + "   
" + Data[temp, 0] + "   
 " + month_list[Convert.ToInt32(Data[temp, 0]) - 1] + "  
";
            htmlstrg += "";  //border=1 bordercolor=yellow

            string colorname = objrandom.Next(10).ToString() + objrandom.Next(10).ToString() + objrandom.Next(10).ToString() +
                                   objrandom.Next(10).ToString() + objrandom.Next(10).ToString() + objrandom.Next(10).ToString();

            for (v1 = temp; v1 <= counter; v1++)
            {
                temp++;
                if (temp <= counter)
                {

                    htmlstrg += "";//#8B9BBA


                    if (Data[v1, 0] != Data[temp, 0])
                    {
                        htmlstrg += "
" + Data[v1, 1] + "
" + //style=\"layout-flow : vertical-ideographic; \"
                               "
" + Data[v1, 2] + " 
" +
                                    "
";

            return htmlstrg; // return Html string

        }

/// Create HTML file
public void PRINTHtmlString(string htmlpage)
        {
            StreamWriter SW = File.CreateText("c:\\visitdetail.htm");
            SW.WriteLine(htmlpage);
            SW.Close();
            webBrowser1.Navigate("c:\\visitdetail.htm");
        }