如何在c#中访问内部列表项 [英] How to Access inner list item in c#

问题描述

我正在使用 c# 语言开发 Windows Phone 应用程序，但在访问 c# 中的内部列表项时遇到了问题.

I am working on windows phone app using c# language and I am facing issue to access inner list item in c#.

我有以下 json 类

I have following json class

public List<List<string>> Professions { get; set; }

获取 Json 网络服务响应的代码

code for getting response from Json web service

list_professions.ItemsSource = rootObject.result.Professions;

界面

<phone:LongListSelector Name="list_professions" Tap="list_professions_Tap"  
    IsGroupingEnabled="True">

</phone:LongListSelector>

JSON 响应喜欢

{"flag":"1","message":"Result Found","result":{"Professions":[["Abortion Services","Abortion Counsellor","Abortion Clinic"],["Access Consultant","Access Control Systems","Access Equipment","Designer","dshajkfhksdajkfhafkdjsh","hjkrty"],["Accident Claims"],["Accountant","Book-Keeping","Auditing","VAT Returns","Business Advice","Payroll","test","First Custom Service"],["Acoustic Services"],["Acturary","Risk Assessor"],["Acupunctur","Herbal Remedies","Massage","Healing","Accupressure"],["Addiction Counsellor","Alcohol Addiction","Drug Addiction","Counselling","Psychotherapy"],["Adhesive Products"],["Adoption & Fostering"],["Adult Education Centres","Adult Tuition","Private Tuition","ESL","Home Tuition"],["Advertising Services","Advertising Agency","Marketing Services","Online Marketing","Press Marketing"],["Aerials","Satellite Dishes","Cable TV"],["Aeronautical Instruments"],["Aerosols"],["After School Care"],["Agricultural Services","Agricultural Vehicles"],["Air Compressors"],["Air Conditioning Services","Heating Services","Air Purification Equipment"]]}}

推荐答案

你只是要求这个吗?

var firstItemOfProfession0 = (Professions[0])[0];

如果要循环，请使用双 foreach

use a double foreach if you want to loop through

foreach(var profession in Professions)
{
  foreach(var subProfession in profession)
  {
    Console.Writeline(subProfession);
  }
}

如果您需要扁平化列表，请使用 Linq:

if you need to have a flatten list use Linq:

var flattenProfessions = Professions.SelectMany(x => x).ToList();

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