Change gridview cell color and column color

  
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridCell.aspx.cs" Inherits="GridCell" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
 <title>Untitled Page</title>
</head>
<body>
 <form id="form1" runat="server">
 <div>
<asp:GridView ID="GridView1" runat="server" OnRowDataBound="GridView1_RowCreated"></asp:GridView>

 </div>
 </form>
</body>
</html>
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.Collections.Generic;
using System.Drawing;

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

       List<dataStruct> mylist = new List<dataStruct>();

       mylist.Add(new dataStruct(new DateTime(1982, 01, 01), "Bill", 'm'));
       mylist.Add(new dataStruct(new DateTime(1981, 01, 01), "Philip", 'm'));
       mylist.Add(new dataStruct(new DateTime(1980, 01, 01), "Susan", 'f'));

       GridView1.DataSource = mylist;
       GridView1.DataBind();

   }

   public struct dataStruct
   {

       private DateTime birthdate;
       private string name;
       private char sex;
       public DateTime BirthDate
       {
           get { return birthdate; }
           set { birthdate = value; }
       }

       public string Name
       {
           get { return name; }
           set { name = value; }
       }

       public char Sex
       {
           get { return sex; }
           set { sex = value; }
       }


       public dataStruct(DateTime _birthdate, string _name, char _sex)
       {

           this.birthdate = _birthdate;
           this.name = _name;
           this.sex = _sex;
       }
   }

   private List<int> changeColorOnThisColumn;

   protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
   {

       // initialize changeColorOnThisColumn if it has not been initialized yet.
       if (changeColorOnThisColumn == null)
           changeColorOnThisColumn = new List<int>();

       // If this is the header row
       if (e.Row.RowIndex == -1)
       {
           // initialize a counting variable to keep track of the cell index
           int index = 0;
           foreach (TableCell cell in e.Row.Cells)
           {
               // if the Column is the column that you want to change the color for, add it to the list of columns
               if (cell.Text == "BirthDate")
                   changeColorOnThisColumn.Add(index);
               index++;
           }

       }
       // If this is not the header row
       else if (e.Row.RowIndex != -1)
       {
           dataStruct curStruct = (dataStruct)e.Row.DataItem;

           if (curStruct.Sex == 'f')
               e.Row.Cells[0].BackColor = Color.Pink;
           else
               e.Row.Cells[0].BackColor = Color.Blue;

           foreach (int index in changeColorOnThisColumn)
           {

               e.Row.Cells[index].BackColor = Color.Beige;

           }

       }
   }
}

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