Easy state and country dropdowns for MVC .NET, current as of 8/2013

Country.ascx

<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<string>" %>

<% string defaultCountry = "United States";
   if (ViewData.ContainsKey("default")) {
       defaultCountry = (string)ViewData["default"];
   }
%>
<select id="<%= Html.IdFor(model => model) %>" name="<%= ViewData.TemplateInfo.HtmlFieldPrefix %>"<% if (ViewData.ContainsKey("html")) { foreach (var a in HtmlHelper.AnonymousObjectToHtmlAttributes(ViewData["html"])) { %> <%= a.Key %>="<%= a.Value %>"<% } } %>>
	<% if (String.IsNullOrWhiteSpace(Model) && !Inspect.Models.Location.Countries.Keys.Contains(defaultCountry)) { %><option value="<%: defaultCountry %>"><%: defaultCountry %></option><% } %>
	<% foreach (var country in Inspect.Models.Location.Countries.Keys) { %>
	<option value="<%: country %>"<% if (country == Model || String.IsNullOrWhiteSpace(Model) && country == defaultCountry) { %> selected="selected"<% } %>><%: Inspect.Models.Location.Countries[country] %></option>
	<% } %>
</select>

Example.aspx

<%= Html.EditorFor(model => model.Country, "Country", new { default = "France", html = new { @class = "form-control", data_bind="value: whatever } } %>

<%= Html.EditorFor(model => model.State, "State", new { html = new { @class = "form-control", data_bind="value: whatever } } %>

Location.cs

using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Collections.Generic;

namespace Inspect.Models {

    [ComplexType]
	public class Location {

		public string Room { get; set; }
		public string Building { get; set; }
		public string Address1 { get; set; }
		public string Address2 { get; set; }
		public string City { get; set; }
		public string State { get; set; }
		[MaxLength(10, ErrorMessage = "Zip code must be 5 or 9 digits")]
		public string Zip { get; set; }
		public string Country { get; set; }
		public double? Latitude { get; set; }
		public double? Longitude { get; set; }

		public static Dictionary<string, string> Countries = new Dictionary<string,string>() {
			{ "Afghanistan", "Afghanistan" },
			{ "Albania", "Albania" },
			{ "Algeria", "Algeria" },
			{ "American Samoa", "American Samoa" },
			{ "Andorra", "Andorra" },
			{ "Angola", "Angola" },
			{ "Anguilla", "Anguilla" },
			{ "Antarctica", "Antarctica" },
			{ "Antigua and Barbuda", "Antigua and Barbuda" },
			{ "Argentina", "Argentina" },
			{ "Armenia", "Armenia" },
			{ "Aruba", "Aruba" },
			{ "Australia", "Australia" },
			{ "Austria", "Austria" },
			{ "Azerbaijan", "Azerbaijan" },
			{ "Bahamas", "Bahamas" },
			{ "Bahrain", "Bahrain" },
			{ "Bangladesh", "Bangladesh" },
			{ "Barbados", "Barbados" },
			{ "Belarus", "Belarus" },
			{ "Belgium", "Belgium" },
			{ "Belize", "Belize" },
			{ "Benin", "Benin" },
			{ "Bermuda", "Bermuda" },
			{ "Bhutan", "Bhutan" },
			{ "Bolivia", "Bolivia" },
			{ "Bosnia and Herzegovina", "Bosnia and Herzegovina" },
			{ "Botswana", "Botswana" },
			{ "Bouvet Island", "Bouvet Island" },
			{ "Brazil", "Brazil" },
			{ "British Indian Ocean Territory", "British Indian Ocean Territory" },
			{ "Brunei Darussalam", "Brunei Darussalam" },
			{ "Bulgaria", "Bulgaria" },
			{ "Burkina Faso", "Burkina Faso" },
			{ "Burundi", "Burundi" },
			{ "Cambodia", "Cambodia" },
			{ "Cameroon", "Cameroon" },
			{ "Canada", "Canada" },
			{ "Cape Verde", "Cape Verde" },
			{ "Cayman Islands", "Cayman Islands" },
			{ "Central African Republic", "Central African Republic" },
			{ "Chad", "Chad" },
			{ "Chile", "Chile" },
			{ "China", "China" },
			{ "Christmas Island", "Christmas Island" },
			{ "Cocos (Keeling) Islands", "Cocos (Keeling) Islands" },
			{ "Colombia", "Colombia" },
			{ "Comoros", "Comoros" },
			{ "Congo", "Congo" },
			{ "Congo, The Democratic Republic of The", "Congo, The Democratic Republic of The" },
			{ "Cook Islands", "Cook Islands" },
			{ "Costa Rica", "Costa Rica" },
			{ "Cote D'ivoire", "Cote D'ivoire" },
			{ "Croatia", "Croatia" },
			{ "Cuba", "Cuba" },
			{ "Cyprus", "Cyprus" },
			{ "Czech Republic", "Czech Republic" },
			{ "Denmark", "Denmark" },
			{ "Djibouti", "Djibouti" },
			{ "Dominica", "Dominica" },
			{ "Dominican Republic", "Dominican Republic" },
			{ "Ecuador", "Ecuador" },
			{ "Egypt", "Egypt" },
			{ "El Salvador", "El Salvador" },
			{ "Equatorial Guinea", "Equatorial Guinea" },
			{ "Eritrea", "Eritrea" },
			{ "Estonia", "Estonia" },
			{ "Ethiopia", "Ethiopia" },
			{ "Falkland Islands (Malvinas)", "Falkland Islands (Malvinas)" },
			{ "Faroe Islands", "Faroe Islands" },
			{ "Fiji", "Fiji" },
			{ "Finland", "Finland" },
			{ "France", "France" },
			{ "French Guiana", "French Guiana" },
			{ "French Polynesia", "French Polynesia" },
			{ "French Southern Territories", "French Southern Territories" },
			{ "Gabon", "Gabon" },
			{ "Gambia", "Gambia" },
			{ "Georgia", "Georgia" },
			{ "Germany", "Germany" },
			{ "Ghana", "Ghana" },
			{ "Gibraltar", "Gibraltar" },
			{ "Greece", "Greece" },
			{ "Greenland", "Greenland" },
			{ "Grenada", "Grenada" },
			{ "Guadeloupe", "Guadeloupe" },
			{ "Guam", "Guam" },
			{ "Guatemala", "Guatemala" },
			{ "Guinea", "Guinea" },
			{ "Guinea-bissau", "Guinea-bissau" },
			{ "Guyana", "Guyana" },
			{ "Haiti", "Haiti" },
			{ "Heard Island and Mcdonald Islands", "Heard Island and Mcdonald Islands" },
			{ "Holy See (Vatican City State)", "Holy See (Vatican City State)" },
			{ "Honduras", "Honduras" },
			{ "Hong Kong", "Hong Kong" },
			{ "Hungary", "Hungary" },
			{ "Iceland", "Iceland" },
			{ "India", "India" },
			{ "Indonesia", "Indonesia" },
			{ "Iran, Islamic Republic of", "Iran, Islamic Republic of" },
			{ "Iraq", "Iraq" },
			{ "Ireland", "Ireland" },
			{ "Israel", "Israel" },
			{ "Italy", "Italy" },
			{ "Jamaica", "Jamaica" },
			{ "Japan", "Japan" },
			{ "Jordan", "Jordan" },
			{ "Kazakhstan", "Kazakhstan" },
			{ "Kenya", "Kenya" },
			{ "Kiribati", "Kiribati" },
			{ "Korea, Democratic People's Republic of", "Korea, Democratic People's Republic of" },
			{ "Korea, Republic of", "Korea, Republic of" },
			{ "Kuwait", "Kuwait" },
			{ "Kyrgyzstan", "Kyrgyzstan" },
			{ "Lao People's Democratic Republic", "Lao People's Democratic Republic" },
			{ "Latvia", "Latvia" },
			{ "Lebanon", "Lebanon" },
			{ "Lesotho", "Lesotho" },
			{ "Liberia", "Liberia" },
			{ "Libyan Arab Jamahiriya", "Libyan Arab Jamahiriya" },
			{ "Liechtenstein", "Liechtenstein" },
			{ "Lithuania", "Lithuania" },
			{ "Luxembourg", "Luxembourg" },
			{ "Macao", "Macao" },
			{ "Macedonia, The Former Yugoslav Republic of", "Macedonia, The Former Yugoslav Republic of" },
			{ "Madagascar", "Madagascar" },
			{ "Malawi", "Malawi" },
			{ "Malaysia", "Malaysia" },
			{ "Maldives", "Maldives" },
			{ "Mali", "Mali" },
			{ "Malta", "Malta" },
			{ "Marshall Islands", "Marshall Islands" },
			{ "Martinique", "Martinique" },
			{ "Mauritania", "Mauritania" },
			{ "Mauritius", "Mauritius" },
			{ "Mayotte", "Mayotte" },
			{ "Mexico", "Mexico" },
			{ "Micronesia, Federated States of", "Micronesia, Federated States of" },
			{ "Moldova, Republic of", "Moldova, Republic of" },
			{ "Monaco", "Monaco" },
			{ "Mongolia", "Mongolia" },
			{ "Montserrat", "Montserrat" },
			{ "Morocco", "Morocco" },
			{ "Mozambique", "Mozambique" },
			{ "Myanmar", "Myanmar" },
			{ "Namibia", "Namibia" },
			{ "Nauru", "Nauru" },
			{ "Nepal", "Nepal" },
			{ "Netherlands", "Netherlands" },
			{ "Netherlands Antilles", "Netherlands Antilles" },
			{ "New Caledonia", "New Caledonia" },
			{ "New Zealand", "New Zealand" },
			{ "Nicaragua", "Nicaragua" },
			{ "Niger", "Niger" },
			{ "Nigeria", "Nigeria" },
			{ "Niue", "Niue" },
			{ "Norfolk Island", "Norfolk Island" },
			{ "Northern Mariana Islands", "Northern Mariana Islands" },
			{ "Norway", "Norway" },
			{ "Oman", "Oman" },
			{ "Pakistan", "Pakistan" },
			{ "Palau", "Palau" },
			{ "Palestinian Territory, Occupied", "Palestinian Territory, Occupied" },
			{ "Panama", "Panama" },
			{ "Papua New Guinea", "Papua New Guinea" },
			{ "Paraguay", "Paraguay" },
			{ "Peru", "Peru" },
			{ "Philippines", "Philippines" },
			{ "Pitcairn", "Pitcairn" },
			{ "Poland", "Poland" },
			{ "Portugal", "Portugal" },
			{ "Puerto Rico", "Puerto Rico" },
			{ "Qatar", "Qatar" },
			{ "Reunion", "Reunion" },
			{ "Romania", "Romania" },
			{ "Russian Federation", "Russian Federation" },
			{ "Rwanda", "Rwanda" },
			{ "Saint Helena", "Saint Helena" },
			{ "Saint Kitts and Nevis", "Saint Kitts and Nevis" },
			{ "Saint Lucia", "Saint Lucia" },
			{ "Saint Pierre and Miquelon", "Saint Pierre and Miquelon" },
			{ "Saint Vincent and The Grenadines", "Saint Vincent and The Grenadines" },
			{ "Samoa", "Samoa" },
			{ "San Marino", "San Marino" },
			{ "Sao Tome and Principe", "Sao Tome and Principe" },
			{ "Saudi Arabia", "Saudi Arabia" },
			{ "Senegal", "Senegal" },
			{ "Serbia and Montenegro", "Serbia and Montenegro" },
			{ "Seychelles", "Seychelles" },
			{ "Sierra Leone", "Sierra Leone" },
			{ "Singapore", "Singapore" },
			{ "Slovakia", "Slovakia" },
			{ "Slovenia", "Slovenia" },
			{ "Solomon Islands", "Solomon Islands" },
			{ "Somalia", "Somalia" },
			{ "South Africa", "South Africa" },
			{ "South Georgia and The South Sandwich Islands", "South Georgia and The South Sandwich Islands" },
			{ "Spain", "Spain" },
			{ "Sri Lanka", "Sri Lanka" },
			{ "Sudan", "Sudan" },
			{ "Suriname", "Suriname" },
			{ "Svalbard and Jan Mayen", "Svalbard and Jan Mayen" },
			{ "Swaziland", "Swaziland" },
			{ "Sweden", "Sweden" },
			{ "Switzerland", "Switzerland" },
			{ "Syrian Arab Republic", "Syrian Arab Republic" },
			{ "Taiwan, Province of China", "Taiwan, Province of China" },
			{ "Tajikistan", "Tajikistan" },
			{ "Tanzania, United Republic of", "Tanzania, United Republic of" },
			{ "Thailand", "Thailand" },
			{ "Timor-leste", "Timor-leste" },
			{ "Togo", "Togo" },
			{ "Tokelau", "Tokelau" },
			{ "Tonga", "Tonga" },
			{ "Trinidad and Tobago", "Trinidad and Tobago" },
			{ "Tunisia", "Tunisia" },
			{ "Turkey", "Turkey" },
			{ "Turkmenistan", "Turkmenistan" },
			{ "Turks and Caicos Islands", "Turks and Caicos Islands" },
			{ "Tuvalu", "Tuvalu" },
			{ "Uganda", "Uganda" },
			{ "Ukraine", "Ukraine" },
			{ "United Arab Emirates", "United Arab Emirates" },
			{ "United Kingdom", "United Kingdom" },
			{ "United States", "United States" },
			{ "United States Minor Outlying Islands", "United States Minor Outlying Islands" },
			{ "Uruguay", "Uruguay" },
			{ "Uzbekistan", "Uzbekistan" },
			{ "Vanuatu", "Vanuatu" },
			{ "Venezuela", "Venezuela" },
			{ "Viet Nam", "Viet Nam" },
			{ "Virgin Islands, British", "Virgin Islands, British" },
			{ "Virgin Islands, U.S.", "Virgin Islands, U.S." },
			{ "Wallis and Futuna", "Wallis and Futuna" },
			{ "Western Sahara", "Western Sahara" },
			{ "Yemen", "Yemen" },
			{ "Zambia", "Zambia" },
			{ "Zimbabwe", "Zimbabwe" }
		};

		public static Dictionary<string, Dictionary<string, string>> States = new Dictionary<string, Dictionary<string, string>>() {
			{ "Outlying Territories", new Dictionary<string, string>() {
				{ "AS", "American Samoa" },
				{ "GU", "Guam" },
				{ "MP", "Northern Mariana Islands" },
				{ "PR", "Puerto Rico" },
				{ "UM", "United States Minor Outlying Islands" },
				{ "VI", "Virgin Islands" }
			} },
			{ "Armed Forces", new Dictionary<string, string>() {
				{ "AA", "Armed Forces Americas" },
				{ "AP", "Armed Forces Pacific" },
				{ "AE", "Armed Forces Others" }
			} },
			{ "States and D.C.", new Dictionary<string, string>() {
				{ "AL", "Alabama" },
				{ "AK", "Alaska" },
				{ "AZ", "Arizona" },
				{ "AR", "Arkansas" },
				{ "CA", "California" },
				{ "CO", "Colorado" },
				{ "CT", "Connecticut" },
				{ "DE", "Delaware" },
				{ "DC", "District of Columbia" },
				{ "FL", "Florida" },
				{ "GA", "Georgia" },
				{ "HI", "Hawaii" },
				{ "ID", "Idaho" },
				{ "IL", "Illinois" },
				{ "IN", "Indiana" },
				{ "IA", "Iowa" },
				{ "KS", "Kansas" },
				{ "KY", "Kentucky" },
				{ "LA", "Louisiana" },
				{ "ME", "Maine" },
				{ "MD", "Maryland" },
				{ "MA", "Massachusetts" },
				{ "MI", "Michigan" },
				{ "MN", "Minnesota" },
				{ "MS", "Mississippi" },
				{ "MO", "Missouri" },
				{ "MT", "Montana" },
				{ "NE", "Nebraska" },
				{ "NV", "Nevada" },
				{ "NH", "New Hampshire" },
				{ "NJ", "New Jersey" },
				{ "NM", "New Mexico" },
				{ "NY", "New York" },
				{ "NC", "North Carolina" },
				{ "ND", "North Dakota" },
				{ "OH", "Ohio" },
				{ "OK", "Oklahoma" },
				{ "OR", "Oregon" },
				{ "PA", "Pennsylvania" },
				{ "RI", "Rhode Island" },
				{ "SC", "South Carolina" },
				{ "SD", "South Dakota" },
				{ "TN", "Tennessee" },
				{ "TX", "Texas" },
				{ "UT", "Utah" },
				{ "VT", "Vermont" },
				{ "VA", "Virginia" },
				{ "WA", "Washington" },
				{ "WV", "West Virginia" },
				{ "WI", "Wisconsin" },
				{ "WY", "Wyoming" }
			} }
		};

	}
}

State.ascx

<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<string>" %>

<select id="<%= Html.IdFor(model => model) %>" name="<%= ViewData.TemplateInfo.HtmlFieldPrefix %>"<% if (ViewData.ContainsKey("html")) { foreach (var a in HtmlHelper.AnonymousObjectToHtmlAttributes(ViewData["html"])) { %> <%= a.Key %>="<%= a.Value %>"<% } } %>>
	<option value=""></option>
	<% foreach (var group in Inspect.Models.Location.States.Keys) { %>
	<optgroup label="<%: group %>">
		<% foreach (var state in Inspect.Models.Location.States[group].Keys) { %>
		<option value="<%: state %>"<% if (state == Model) { %> selected="selected"<% } %>><%: Inspect.Models.Location.States[group][state] %></option>
		<% } %>
	</optgroup>
	<% } %>
</select>