c#-4.0 - 如何获得国家名称

Question

我使用下面的代码来获取文化类型列表，有没有办法只获取国家名称？

谢谢

static void Main(string[] args)
{
    StringBuilder sb = new StringBuilder();
    foreach (CultureInfo ci in CultureInfo.GetCultures(CultureTypes.SpecificCultures))
    {
        sb.Append(ci.DisplayName);
        sb.AppendLine();
    }
    Console.WriteLine(sb.ToString());
    Console.ReadLine();
}

样本输出：

西班牙语（波多黎各）

西班牙语（美国）

Answer 1

You can use the Name property of the CultureInfo to construct a RegionInfo. You can then use the DisplayName property. Try:

foreach (CultureInfo ci in CultureInfo.GetCultures(CultureTypes.SpecificCultures))
{
    var ri = new RegionInfo(ci.Name);
    Console.WriteLine(ri.DisplayName);
}

Answer 2

// Build your normal dictionary as container
Dictionary<string, string> countryNames = new Dictionary<string, string>();
foreach (CultureInfo ci in CultureInfo.GetCultures(CultureTypes.SpecificCultures))
{
    RegionInfo ri = new RegionInfo(ci.Name);
    // Check if the ISO language code is already in your collection 
    // Because you don't want double entries in a country box because we had to use the culture info
    if (!countryNames.ContainsKey(ri.TwoLetterISORegionName))
    {
        countryNames.Add(ri.TwoLetterISORegionName.ToUpper(), ri.EnglishName);
    }
}
// Code for dictionary to dropdownlist transform can be written with your personal preference for symantics 
SelectList countryDropdown = new SelectList(countryNames.OrderBy(o => o.Value), "Key", "Value");

或无需注释即可使用：

Dictionary<string, string> countryNames = new Dictionary<string, string>();
foreach (CultureInfo ci in CultureInfo.GetCultures(CultureTypes.SpecificCultures))
{
    RegionInfo ri = new RegionInfo(ci.Name);
    if (!countryNames.ContainsKey(ri.TwoLetterISORegionName)) countryNames.Add(ri.TwoLetterISORegionName.ToUpper(), ri.EnglishName);
}
SelectList countryDropdown = new SelectList(countryNames.OrderBy(o => o.Value), "Key", "Value");

Answer 3

好吧，这个正则表达式似乎在大多数情况下都可以完成这项工作：

var regex = new System.Text.RegularExpressions.Regex(@"([\w+\s*\.*]+\))");
foreach (var item in CultureInfo.GetCultures(CultureTypes.SpecificCultures))
{
    var match = regex.Match(item.DisplayName);
    string countryName = match.Value.Length == 0 ? "NA" : match.Value.Substring(0, match.Value.Length - 1);
    Console.WriteLine(countryName);
}

Answer 4

这将是您正在寻找的：

foreach (CultureInfo ci in CultureInfo.GetCultures(CultureTypes.SpecificCultures))
{
    sb.Append(ci.EnglishName);
    sb.AppendLine();
}

Answer 5

您将需要使用以下命名空间

using System.Configuration; 
using System.Globalization;       

/// <summary>
/// populate country name
/// </summary>
/// <param name="dropDown"></param>
public static void GetCountryNames(DropDownList dropDown)
{
    Hashtable h = new Hashtable();
    Dictionary<string, string> objDic = new Dictionary<string, string>();
    foreach (CultureInfo ObjCultureInfo in CultureInfo.GetCultures(CultureTypes.SpecificCultures))
    {
        RegionInfo objRegionInfo = new RegionInfo(ObjCultureInfo.Name);
        if (!objDic.ContainsKey(objRegionInfo.EnglishName))
        {
            objDic.Add(objRegionInfo.EnglishName, objRegionInfo.TwoLetterISORegionName.ToLower());
        }
    }

    SortedList<string, string> sortedList = new SortedList<string, string>(objDic);
    foreach (KeyValuePair<string, string> val in sortedList)
    {
        dropDown.Items.Add(new ListItem(val.Key, val.Key));
    }

    dropDown.Items.Insert(0, new ListItem("Select", "Select"));
    dropDown.Items.Insert(1, new ListItem("Other Country", "Other"));
}

Answer 6

你可以使用我的 nuget 包Nager.Country。每个国家/地区都有很多附加信息。更多信息请访问Github 项目

PM> install-package Nager.Country

ICountryProvider countryProvider = new CountryProvider();
foreach (var countryCode in (Alpha2Code[])Enum.GetValues(typeof(Alpha2Code)))
{
    var countryInfo = countryProvider.GetCountry(countryCode);
    Console.WriteLine(countryInfo.CommonName);
}