[英]Get environment variables in .Net Core / UWP
我嘗試將.Net 4桌面應用程序遷移到UWP App,如果沒有MSDN這樣的文檔,這是一項艱巨的任務。 知道我有所有方法可以連接到現有的Webservice,但是使用的方法什么也不返回。
var envVars = Environment.GetEnvironmentVariables();
var host = Environment.GetEnvironmentVariable("COMPUTERNAME");
var user = Environment.GetEnvironmentVariable("USERNAME");
var userDnsDomain = Environment.GetEnvironmentVariable("USERDNSDOMAIN");
GetEnvironmentVariables的計數為0,.Net的舊方法不再存在:
var host = System.Net.Dns.GetHostName();
var user = Environment.UserName;
我需要計算機的名稱,登錄的用戶名和域。
有技巧或替代方法嗎?
我的解決方案:
var users = await User.FindAllAsync(UserType.LocalUser);
var user = (string) await users.FirstOrDefault().GetPropertyAsync(KnownUserProperties.AccountName);
var domain = "";
var host = "";
if (string.IsNullOrEmpty(user))
{
var domainWithUser = (string) await users.FirstOrDefault().GetPropertyAsync(KnownUserProperties.DomainName);
domain = domainWithUser.Split('\\')[0];
user = domainWithUser.Split('\\')[1];
}
var host = NetworkInformation.GetHostNames().First(x => x.Type == HostNameType.DomainName).DisplayName.Split('.')[0];
這個答案更像是一個警告 。
User
API可以用於多種用戶類型,因此您需要針對空值進行防御性編碼。 我不知道為什么這個API這么不可靠 。 這是一個示例MainPage和一個屏幕快照,顯示所有返回為空白的數據。
using System;
using System.Linq;
using Windows.System;
using Windows.UI.Xaml.Controls;
namespace App_1
{
public sealed partial class MainPage : Page
{
public MainPage()
{
this.InitializeComponent();
GetUserInfo();
}
public static async void GetUserInfo()
{
var users = await User.FindAllAsync(UserType.LocalUser);
var user = await users.FirstOrDefault().GetPropertyAsync(KnownUserProperties.AccountName);
var user_count = users.Count;
var AccountName =
await users[0].GetPropertyAsync(KnownUserProperties.AccountName);
var DisplayName =
await users[0].GetPropertyAsync(KnownUserProperties.DisplayName);
var DomainName =
await users[0].GetPropertyAsync(KnownUserProperties.DomainName);
var FirstName =
await users[0].GetPropertyAsync(KnownUserProperties.FirstName);
var GuestHost =
await users[0].GetPropertyAsync(KnownUserProperties.GuestHost);
var LastName =
await users[0].GetPropertyAsync(KnownUserProperties.LastName);
var PrincipalName =
await users[0].GetPropertyAsync(KnownUserProperties.PrincipalName);
var ProviderName =
await users[0].GetPropertyAsync(KnownUserProperties.ProviderName);
var SessionInitiationProtocolUri =
await users[0].GetPropertyAsync(KnownUserProperties.SessionInitiationProtocolUri);
var User_Type = users[0].Type;
}
}
}
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