我有一个问题,也许有人会帮助我做错的事情(或者你可以告诉我我可以在网上搜索什么?)
我有2个班级:
public class Student
{
public string FirstName { get; set; }
public string LastName { get; set; }
public int Index { get; set; }
public int Telephone { get; set; }
public List<Adres> Adres { get; set; }
public Student()
{}
public Student (string firstname, string lastname, int index, int telephone, List<Adres> adres)
{
FirstName = firstname;
LastName = lastname;
Index = index;
Telephone = telephone;
List<Adres> Adres = adres;
}
}
public class Adres
{
public string Street { get; set; }
public string City { get; set; }
public int Code { get; set; }
public Adres()
{ }
public Adres(string street, int code, string city)
{
Street = street;
City = city;
Code = code;
}
}
我的主项目文件中有两个新类
Adres _adres = new Adres ("street", code, "town");
Student _student = new Student("name", "surname", index, phone, List<Adres> _adres);
在我的_student课程中(这个在底部),我不知道如何将_adres作为学生班的参数......(因为它是一个列表)
任何? PLS?
错误是:
Error 2 The best overloaded method match for 'BazyDanych.Student.Student(string, string, int, int, System.Collections.Generic.List<BazyDanych.Adres>)' has some invalid arguments
Error 3 Argument 5: cannot convert from 'bool' to 'System.Collections.Generic.List<BazyDanych.Adres>'
Error 4 Using the generic type 'System.Collections.Generic.List<T>' requires 1 type arguments
Error 5 'BazyDanych.Adres' is a 'type' but is used like a 'variable'
答案 0 :(得分:1)
您需要创建一个新的List<T>
,就像任何其他类一样:
new List<Address>(new[] { _address })
List<T>
碰巧有一个构造函数,它将一系列项目添加到列表中,这有助于。
答案 1 :(得分:1)
此处的问题是_adres
不是List<Adres>
。它只是Adres
。您需要将其添加到列表中。类似的东西:
Adres _adres = new Adres ("street", code, "town");
var adresList = new List<Adres>();
adresList.Add(_adres);
Student _student = new Student("name", "surname", index, phone, adresList);