In this tutorial i am going to explain about how to get all coutries in the world from System.Globalization namespace or get all countries in asp.net and C#.Net or get all countries and bind it to the dropdownlist in asp.net.
In my previous article i have explained about Web Api Model Validation Using Validation Filters , Convert String To Upper,Lower & Title(Proper) Case Using TextInfo Class Build Products Comparision Table/Grid In ASP.Net , Store Custom Objects In Configuration File , Create Simple Mathmatical Captcha In ASP.Net , Visual Studio Keyboard Shortcuts and many articles in ASP.Net,C#.Net,VB.Net,Grid View,Javascript,jQuery,SQL Server and many other topics.
This tutorial will get the country list from the System.Globalization namespace and bind it to the first drop down list in the file. And then it will sort the countries and bind it to the second dropdownlist. Below is the aspx code i used.
ASPX Code:
Below is the code behind code.
In my previous article i have explained about Web Api Model Validation Using Validation Filters , Convert String To Upper,Lower & Title(Proper) Case Using TextInfo Class Build Products Comparision Table/Grid In ASP.Net , Store Custom Objects In Configuration File , Create Simple Mathmatical Captcha In ASP.Net , Visual Studio Keyboard Shortcuts and many articles in ASP.Net,C#.Net,VB.Net,Grid View,Javascript,jQuery,SQL Server and many other topics.
This tutorial will get the country list from the System.Globalization namespace and bind it to the first drop down list in the file. And then it will sort the countries and bind it to the second dropdownlist. Below is the aspx code i used.
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>
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</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 in CultureInfo.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));
}
}
}
VB.Net Code:
Imports
System.Collections.Generic
Imports System.Linq
Imports System.Web
Imports System.Web.UI
Imports
System.Web.UI.WebControls
Imports
System.Globalization
Imports System.Collections
Partial Public Class _Default
Inherits System.Web.UI.Page
Protected Sub Page_Load(sender As Object, e As EventArgs)
' Declaring dictionary object to add coutries from the
System.Globalization namespace
Dim objCountries As New Dictionary(Of String, String)()
'Getting coutries from CultureInfo class and adding it to
objCountries
For Each objCultureInfo As CultureInfo In CultureInfo.GetCultures(CultureTypes.SpecificCultures)
Dim objRegionInfo As New RegionInfo(objCultureInfo.Name)
If Not
objCountries.ContainsKey(objRegionInfo.GeoId.ToString()) Then
objCountries.Add(objRegionInfo.GeoId.ToString(),
objRegionInfo.EnglishName)
End If
Next
'Looping dictionary object and binding it to drop down
For Each key As var In objCountries.Keys
ddlCountries.Items.Add(New ListItem(objCountries(key), objCountries(key)))
Next
'Sorting the dictionary object based on value
Dim mySortedList As List(Of KeyValuePair(Of String, String)) =
objCountries.ToList()
mySortedList.Sort(Function(firstPair As KeyValuePair(Of String, String), nextPair As KeyValuePair(Of String, String)) firstPair.Value.CompareTo(nextPair.Value))
'Binding sorted dictionary object to dropdownlist
For Each objKeyValuePair As KeyValuePair(Of String, String) In mySortedList
ddlSortedCountries.Items.Add(New ListItem(objKeyValuePair.Value, objKeyValuePair.Key))
Next
End Sub
End Class
If you run the application now then you will get the following output.
Un Sorted Country List:
Sorted Country List:
Source Code:
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