Question

How do I get right(string) in C#? if user="MyDomainjKing" I want just jking from the above string.

      int index;
      string user;

    index = User.Identity.Name.IndexOf("\");
    user = (index > 0 ? User.Identity.Name.Substring(0, index) : "");

Answer 1

string user = User.Identity.Name
user= user.Remove(0, user.IndexOf(@"")+ 1);

Answer 2

var user = User.Identity.Name;
var index = user.IndexOf("\");
if (index < 0 || index == user.Length - 1) 
{
    user = string.Empty;
}
else 
{
    user = user.Substring(index + 1);
}

Answer 3

User.Identity.Name.Split(@"")[1]

Answer 4

远见卓识也使它得以重新使用。下面是一些扩展方法,其方式是仿照《XLST》的功能,substring- before和substring- subsequently使之具有通用性。

Usage:varuserNm = (User.Identity.Name.Contains(@”) ? 用户.Identity.Name.SubstringAfter(@):用户.Identity.Name;

public static class StringExt {
   public static string SubstringAfter(this string s, string searchString) {
      if (String.IsNullOrEmpty(searchString)) return s;
      var idx = s.IndexOf(searchString);
      return (idx < 0 ? "" : s.Substring(idx + searchString.Length));
   }

   public static string SubstringBefore(this string s, string searchString) {
      if (String.IsNullOrEmpty(searchString)) return s;
      var idx = s.IndexOf(searchString);
      return (idx < 0 ? "" : s.Substring(0, idx));
   }
}

友情链接