如何在控制台应用程序中打印List作为表？

Question

我需要方法在控制台应用程序中打印List作为表格并以方便的格式预览,如下所示:

Pom_No          Item_Code          ordered_qty                      received_qty

1011            Item_Code1         ordered_qty1                    received_qty1 

1011            Item_Code2         ordered_qty2                    received_qty2

1011            Item_Code3         ordered_qty3                    received_qty3

1012            Item_Code1         ordered_qty1                    received_qty1 

1012            Item_Code2         ordered_qty2                    received_qty2

1012            Item_Code3         ordered_qty3                    received_qty3

Answer 1

你的主要工具是

Console.WriteLine("{0,5} {1,10} {2,-10}", s1, s2, s3);  

的,5和,10是宽度说明.使用负值进行左对齐.

格式化也是可能的:

Console.WriteLine("y = {0,12:#,##0.00}", y);

或者宽度为24的日期和自定义格式:

String.Format("Now = {0,24:dd HH:mm:ss}", DateTime.Now);

编辑,对于C#6

使用字符串插值,您现在也可以编写

Console.WriteLine($"{s1,5} {s2,10} {s3,-10}");  
Console.WriteLine($"y = {y,12:#,##0.00}");
String.Format($"Now = {DateTime.Now,24:dd HH:mm:ss}" );

您无需String.Format()明确调用:

string s = $"Now = {DateTime.Now,24:dd HH:mm:ss}" + " " + $"y = {y,12:#,##0.00}" ;

Answer 2

最简单的方法是使用现有的库

Install-Package ConsoleTables 

然后你可以这样定义你的表:

ConsoleTable.From<Order>(orders).Write();

它会给出这个输出

| Id       | Quantity | Name              | Date                |
|----------|----------|-------------------|---------------------|
| 3355     | 6        | Some Product 3355 | 18-04-2016 00:52:52 |
| 3355     | 6        | Some Product 3355 | 18-04-2016 00:52:52 |
| 3355     | 6        | Some Product 3355 | 18-04-2016 00:52:52 |
| 3355     | 6        | Some Product 3355 | 18-04-2016 00:52:52 |
| 3355     | 6        | Some Product 3355 | 18-04-2016 00:52:52 |

或者定义自定义表

var table = new ConsoleTable("one", "two", "three");
table.AddRow(1, 2, 3)
     .AddRow("this line should be longer", "yes it is", "oh");

table.Write();

有关更多示例,请检查c#console table