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c#stringstring-formatting
Prime
Prime

Reputation: 3625

How to align string column using string format padding in C#

I used string format padding to display columns in specific format (i.e distance between columns). 

String.Format("{0,5}{1,0}{2,-20}{3,0}",
                            ID,
                            ZIP,
                            State,
                            Flag);

It works well for standard fixed row length.

012345IL     1
112345KS     0
212345CO     1
312345CA     1
412345IL     1
512345KS     0
612345CO     1
712345CA     1
812345IL     1
912345KS     0
1012345CO     1
1112345CA     1

But the problem comes when the ID becomes double digit and the last line shifts a bit. The desired format I am expecting is 

012345IL     1
112345KS     0
212345CO     1
312345CA     1
412345IL     1
512345KS     0
612345CO     1
712345CA     1
812345IL     1
912345KS     0
1012345CO    1
1112345CA    1

I tried padright and padleft, but not solved the problem and I have the same problem with the other string which has address, where the last column changes when the address length increase. Is there any other way or builtin C# function to achieve?

Upvotes: 0

Views: 4134

Answers (1)

Adam Dove
Adam Dove

Reputation: 41

Your String.Format already formats your string properly. The {0,5} allows 5 characters for the first parameter. This will give you 4 spaces at the beginning of your line for single digit ids, and 3 for double digit ids. Perhaps it is an issue with how you are displaying your string.

However, what you show in your requested format is a little different.
Try this: 

string firstGroup = $"{ID}{ZIP}{State}";
String.Format($"{firstGroup,-13}{Flag}");

Upvotes: 4

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