c# - 无法将类型 'string' 隐式转换为 'System.DateTime' ，无法转换特定列的数据类型

Question

我是 ASP.NET 和 C# 新手。 我想知道如何将一个字段从字符串转换为 DataTime。

string[] Lines = File.ReadAllLines(fileName);
string[] Fields;

//Remove Header line
Lines = Lines.Skip(1).ToArray();
List<CountTable> emList = new List<CountTable>();
foreach (var line in Lines)
{
    Fields = line.Split(new char[] { ',' });
    emList.Add(
        new CountTable
        {
            CountID = Fields[0].Replace("\"", ""),
            Date = Fields[1].Replace("\"", ""),
            UserID = Fields[2].Replace("\"", ""),
            PrinterID = Fields[3].Replace("\"", ""),
            Color = Fields[4].Replace("\"", ""),
            BW = Fields[5].Replace("\"", ""),
        });
}

我收到这个错误

Cannot implicitly convert type 'string' to 'System.DateTime'

在这一行

Date = Fields[1].Replace("\"", ""),

任何人都可以帮我解决语法问题吗？

谢谢!

Answer 1

您是否尝试过将字符串转换为 DateTime 对象？

参见下面的代码:

string[] Lines = File.ReadAllLines(fileName); string[] Fields;
//Remove Header line
Lines = Lines.Skip(1).ToArray();
List<CountTable> emList = new List<CountTable>();
foreach (var line in Lines)
{
    Fields = line.Split(new char[] { ',' });
    emList.Add(
        new CountTable
        {
            CountID = Fields[0].Replace("\"", ""),
            Date = Convert.ToDateTime(Fields[1].Replace("\"", "")),
            UserID = Fields[2].Replace("\"", ""),
            PrinterID = Fields[3].Replace("\"", ""),
            Color = Fields[4].Replace("\"", ""),
            BW = Fields[5].Replace("\"", ""),
        });
}