Index and length must refer to a location within the string.?

Question

My input strings are

inputData = "99998UNKNOWN"
inputData = "01000AMEBACIDE/TRICHOM/ANTIBAC 1"
inputData = "34343AMEBACIDE/TRICHOM/ANTIBACSADWA1"

ID = inputData.Substring(0,5); Name = inputData.Substring(5,30); Level = inputData.Substring(35,1);

I am getting the below error, Index and length must refer to a location within the string.

I can understand , the error is due to the length that specified in substring for "Name" is not matching with first input. Is there any way to handle this issue with any input length?

It's not clear what "handling" you want. You can check the length of `inputData` first though... — Jon Skeet, Feb 15 '17 at 15:13
@dasblinkenlight Yes.It seems that something is wrong with the question. — Hamid Pourjam, Feb 15 '17 at 15:23
@dasblinkenlight It is 30 only. please chec this another input sample. inputData = "34343AMEBACIDE/TRICHOM/ANTIBACSADWA1" — Subash A, Feb 15 '17 at 15:23

Sergey Kalinichenko · Accepted Answer · 2017-02-15T15:23:30.333

One approach is to add a "sentinel" suffix to the end of the string before taking substrings. Now you can add it to the data string before taking substrings from it. As long as the suffix has sufficient length, you would never get an index/length exception:

var padded = inputData.PadRight(32);
ID = padded.Substring(0, 5).Trim();
Name = padded.Substring(5, 30).Trim();
Level = padded.Substring(30, 1).Trim();

However, now your code should check if ID, Name, or Level is empty.

Index and length must refer to a location within the string.?

1 Answers1