為 newb 問題道歉,但我很難思考如何訪問通用列表中的整數(shù)列表,然后將所有這些信息顯示到列表視圖 (winform) 中。這是我到目前為止... } List<Student> students; public class Student { public string First { get; set; } public string Last { get; set; } public List<int> Scores { get; set; } public int ID { get; set; } public string[] ToListViewItem() { return new string[] { First, Last, ID.ToString(), Scores.ToString() }; } } protected override void OnLoad(EventArgs e) { base.OnLoad(e); students = new List<Student> { new Student {First="Svetlana", Last="Omelchenko", ID=111, Scores= new List<int> {97, 92, 81, 60}}, new Student {First="Claire", Last="O’Donnell", ID=112, Scores= new List<int> {75, 84, 91, 39}}, new Student {First="Sven", Last="Mortensen", ID=113, Scores= new List<int> {88, 94, 65, 91}}, new Student {First="Cesar", Last="Garcia", ID=114, Scores= new List<int> {97, 89, 85, 82}}, new Student {First="Debra", Last="Garcia", ID=115, Scores= new List<int> {35, 72, 91, 70}}, new Student {First="Fadi", Last="Fakhouri", ID=116, Scores= new List<int> {99, 86, 90, 94}}, new Student {First="Hanying", Last="Feng", ID=117, Scores= new List<int> {93, 92, 80, 87}}, new Student {First="Hugo", Last="Garcia", ID=118, Scores= new List<int> {92, 90, 83, 78}}, new Student {First="Lance", Last="Tucker", ID=119, Scores= new List<int> {68, 79, 88, 92}}, new Student {First="Terry", Last="Adams", ID=120, Scores= new List<int> {99, 82, 81, 79}}, new Student {First="Eugene", Last="Zabokritski", ID=121, Scores= new List<int> {96, 85, 91, 60}}, new Student {First="Michael", Last="Tucker", ID=122, Scores= new List<int> {94, 92, 91, 91} } };到目前為止,我能夠讓我的列表視圖的前三列填充姓名和學(xué)生 ID,但我在最后一列中得到的只是“Systems.Collections.Generic...”等。
2 回答

慕碼人8056858
TA貢獻1803條經(jīng)驗 獲得超6個贊
您可能正在使用Scores.ToString()返回類名的方法。你可以試試:string.Join(", ", Scores)相反。這將連接所有以,.分隔的值。
public string[] ToListViewItem()
{
return new string[] {
First,
Last,
ID.ToString(),
string.Join(", ", Scores)
};
}

陪伴而非守候
TA貢獻1757條經(jīng)驗 獲得超8個贊
這就是Scores.ToString()
返回。
如果要顯示有用的信息,則需要編寫使用您的List<int>
并返回有用信息的代碼。
從查看開始string.Join()
。
- 2 回答
- 0 關(guān)注
- 252 瀏覽
添加回答
舉報
0/150
提交
取消