Question

这是一个针对不同餐厅的小型应用程序，以及它们开放的一周中的哪几天。在我的界面中，我有一周中每个日期的复选框。我想在string.Format每个选定的日期（选中）框中输出。这可能吗？这是抓住他复选框的代码：

foreach (CheckBox cb in grpDaysOpen.Controls)   // Add days of week that the restaurant is open
{
    DayOfWeek enumConvertedSuccessfully;        // Will contain good enums soon
    if (cb.Checked && Enum.TryParse<DayOfWeek>(cb.Text, out enumConvertedSuccessfully))
        favoriteDiningPlace.OpenDays.Add(enumConvertedSuccessfully);
}

以下是当前覆盖ToString：

return string.Format(
    "{0} is a chian of {1} with a seating capacity of {2}:\r\nSmoking is {3}. Last month's sales were {4}, while last months costs were {5}. \r\nThe restaurant is open {6}",
    this.Name, 
    this.Chain, 
    this.SeatingCapacity, 
    this.Smoking, 
    this.LastMonthSales, 
    this.LastMonthCosts, 
    this.OpenDays);

我不知道是否需要包含任何其他代码。如果您需要澄清，请告诉我。目前上述ToString输出

＆＃34; system.collections.generic.list` [System.DayOfWeek]＆＃34;

代表this.OpenDays。

Answer 1

List<DayOfWeek> d = new List<DayOfWeek> { DayOfWeek.Monday, DayOfWeek.Saturday };
string res = string.Join(", ", d);

Answer 2

试试这个

string days = String.Join(", ",this.OpenDays.Select(x => x.ToString()));

Answer 3

覆盖OpenDays的ToString（），如下所示

public class OpenDays
{
   public override ToString()
   {
       StringBuilding formattedOpenDays = new StringBuilder();

       //od is an object of type of single element in OpenDays collection
       foreach(OpenDay od in OpenDays)
       {
           formattedOpenDays.Add(od.ToString());
       }
       return formattedOpenDays.ToString();
   }   
}

如何在string.format？</dayofweek>中显示List <dayofweek>的所有内容

3 个答案: