ASPX
Code:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs"Inherits="_Default" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div style="margin: 150px;">
<h2>Random
Country List</h2>
<asp:DropDownList ID="ddlCountries" runat="server">
<asp:ListItem Value="0">Select Country</asp:ListItem>
</asp:DropDownList>
<h2>Sorted
Country List</h2>
<asp:DropDownList ID="ddlSortedCountries" runat="server">
<asp:ListItem Value="0">Select Country</asp:ListItem>
</asp:DropDownList>
Source: <a href=" " target="_blank">.Net Pickles</a>
</div>
</form>
</body>
</html>
Below is the code behind code.
C#.Net Code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Globalization;
using System.Collections;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//
Declaring dictionary object to add coutries from the System.Globalization
namespace
Dictionary<string, string> objCountries = new Dictionary<string, string>();
//Getting
coutries from CultureInfo class and adding it to objCountries
foreach (CultureInfo objCultureInfo inCultureInfo.GetCultures(CultureTypes.SpecificCultures))
{
RegionInfo objRegionInfo = new RegionInfo(objCultureInfo.Name);
if (!objCountries.ContainsKey(objRegionInfo.GeoId.ToString()))
{
objCountries.Add(objRegionInfo.GeoId.ToString(), objRegionInfo.EnglishName);
}
}
//Looping
dictionary object and binding it to drop down
foreach (var key in objCountries.Keys)
{
ddlCountries.Items.Add(new ListItem(objCountries[key], objCountries[key]));
}
//Sorting
the dictionary object based on value
List<KeyValuePair<string, string>> mySortedList = objCountries.ToList();
mySortedList.Sort(
delegate(KeyValuePair<string, string> firstPair,
KeyValuePair<string, string> nextPair)
{
return firstPair.Value.CompareTo(nextPair.Value);
}
);
//Binding
sorted dictionary object to dropdownlist
foreach (KeyValuePair<string, string> objKeyValuePair in mySortedList)
{
ddlSortedCountries.Items.Add(new ListItem(objKeyValuePair.Value, objKeyValuePair.Key));
}
}
}