如何在C＃中的DataGridView中顯示我的對象的內容？

Question

這是我的代碼：

void Main() { 
    List<Restaurant> restaurants = new List<Restaurant>(); 
} 

class Restaurant { 
    public int Id; 
    public List<Complaint> Complaints = new List<Complaints>(); 
} 

class Complaint { 
    public string Name; 
    public string Address; 
    public int Age; 
    public DateTime ComplaintDate; 
} 

希望呈現包含在RestaurantData，類餐廳的一個對象中的數據，在DataGridView控制I。首先，我想顯示餐廳ID，然後顯示餐廳的投訴數量，以便看起來像這樣（ID在A列，名稱在B列等）：

• ID名稱地址年齡日期
• 姓名地址年齡日期
• 姓名地址年齡日期

我的DataGridView的過去的使用已不限於dataGridView1.DataSource =（一些陣列）。但是，這次我想呈現的信息顯然不是數組，所以我被卡住了。

Answer 1

如果您希望將列剔除，以自己的列表，像這樣的工作：

private void AddColumns() 
{ 
    dataGridView1.AutoGenerateColumns = false; 
    DataGridViewTextBoxColumn ageColumn = 
     new DataGridViewTextBoxColumn(); 
    ageColumn.Name = "Age"; 
    ageColumn.DataPropertyName = "Age"; 
    ageColumn.ReadOnly = true; 

    DataGridViewTextBoxColumn nameColumn = 
     new DataGridViewTextBoxColumn(); 
    nameColumn.Name = "Name"; 
    nameColumn.DataPropertyName = "Name"; 
    nameColumn.ReadOnly = true; 

    DataGridViewTextBoxColumn addressColumn = 
     new DataGridViewTextBoxColumn(); 
    addressColumn.Name = "Address"; 
    addressColumn.DataPropertyName = "Address"; 
    addressColumn.ReadOnly = true; 

    DataGridViewTextBoxColumn dateColumn = 
     new DataGridViewTextBoxColumn(); 
    addressColumn.Name = "Date"; 
    addressColumn.DataPropertyName = "Date"; 
    addressColumn.ReadOnly = true; 

    dataGridView1.Columns.Add(ageColumn); 
    dataGridView1.Columns.Add(nameColumn); 
    dataGridView1.Columns.Add(addressColumn); 
    dataGridView1.Columns.Add(dateColumn); 

    var ds = (from r in restaurants 
       from c in r.Complaints 
       select new {Id = r.Id, Address =c.Address, Age = c.Age, Name = c.Name, Date = c.ComplaintDate} 
      ).ToList(); 
    dataGridView1.DataSource = ds; 
} 

如果你只是想自動生​​成的列試試這個：

private void AddColumns() 
{ 
    dataGridView1.AutoGenerateColumns = true; 

    var ds = (from r in restaurants 
       from c in r.Complaints 
       select new {Id = r.Id, Address =c.Address, Age = c.Age, Name = c.Name, Date = c.ComplaintDate} 
      ).ToList(); 
    dataGridView1.DataSource = ds; 
}