SearchString 搜索操作的名字和姓氏

Question

您好，我有一个搜索框，它接受搜索字符串并在数据库中搜索它。帐户名称 Utsav Pal 的输入类似于“utsav pal”、“utsav p”、“pal”。但我只想使用像“uts pa”这样的首字母。谁能建议我该怎么做？

这是我使用的逻辑

if(!String.IsNullOrEmpty(vm.SearchString)){
 accounts = accounts.where( a => 
       ((a.Forname != null) && (a.Forename +"  "+ a.Surname).IndexOf(vm.SearchString, StringComparison.CurrentCultureIgnoreCase) >= 0 ) ||
      ((a.AccountCode != null) && a.AccountCode.IndexOf(vm.SearchString, StringComparison.CurrentCultureIgnoreCase) >= 0 )

Answer 1

您可以使用以下逻辑。我已经为基于 Person 模型的数据创建了一个 Person 模型类和一个存储库类。 第一个代码 sn-p 是 Person Model 和 Repository Classes。

public class Person
        {
            public int Id { get; set; }
            public string ForeName { get; set; }
            public string SurName { get; set; }
            public string Email { get; set; }
        }

        public static class Repository
        {
            public static List<Person> p { get; set; }
            static Repository()
            {
                p = new List<Person>();
                p.Add(new Person
                {
                    Id = 1,
                    ForeName = "Nafi",
                    SurName = "Ahmadi",
                    Email = "Nafi@example.com"
                });
                p.Add(new Person
                {
                    Id = 1,
                    ForeName = "Shafiq",
                    SurName = "Rahman",
                    Email = "Shafiq@example.com"
                });
                p.Add(new Person
                {
                    Id = 1,
                    ForeName = "Wali",
                    SurName = "Mohammad",
                    Email = "Wali@example.com"
                });
            }
        }  

这是使用首字母在存储库数据中搜索的逻辑。

static void Main(string[] args)
        {
            // Data set
            List<Person> a = Repository.p;

            // Search string
            string SearchStringInput = "N A";

            // Split search string
            string[] SearchString = SearchStringInput.Split(" "); 
            
            if (!String.IsNullOrEmpty(SearchStringInput))
            {
                var p = a.Where(x =>
                ((x.ForeName != null)) && ((x.ForeName.ElementAt(0).ToString() == SearchString[0].ToString()) || x.ForeName.ToString() == SearchString[0].ToString()) && (x.SurName.ElementAt(0).ToString() == (SearchString[1].ToString())) || (x.SurName.ToString() == (SearchString[1].ToString())));

                foreach (var item in p)
                {
                    Console.WriteLine(item.Email);
                }
            }

            Console.ReadKey();
        }