C# 如何将二维数组中的数据写入文本文件并按列格式化？

Question

So I have a two-dimensional array and I want to write all data to a text-file. But I want them to appear in columns in the text-file.

(I haven't declared them like this in my code, but I think this is what the array would look like written out):

myArray = [{Jamie, 5}, {Susan, 7}, {Robert, 2}, {Sam, 9}];

I want in the text-file it to look like this:

Jamie    5
Susan    7
Robert   2
Sam      9

I have looked at other answers such as How to write contents of an array to a text file? C# and Format a string into columns but I feel like they are only answering half of my question, and I don't understand them either.

What I have so far is:

using (StreamWriter sw = new StreamWriter(@"../../test.txt", false))
{
   foreach ()
   {
   }
}

I'm not sure what I am supposed to have in foreach().

How do I do this?

Answer 1

One easy way is to:

1. Iterate all strings you need to output and store the length of the longest one.
2. Iterate again all items; using two nested loop (rows and columns) seems like a good idea.
3. Write each item you iterate in step 2 padded to the right with enough whitespaces to account for column spacing and the longest length of step 1. string.PadRight seems like a good option.

You are done.

Of couse yo can get fancier and store the longest length of each column and then pad each column with it's specific length...