string.Substring(); Index and length must refer to location

Question

Hi i got the error in below code. what i did wrong... Error : Index and length must refer to a location within the string.
Parameter name: length Code : int l1 = elespt[0].Length - 50; int l2 = elespt[0].Length - 1; string val = elespt[0].ToString(); p1 = val.Substring(l1 l2); elespt[0] is  this page it means the vendor you purchased this e-book from did not deliver the correct file. Please contact . Thanks in Advance.

Karthi Keyan · Answer

@Rajeev Thanks For your replay. i solved the problem. the error was there is the 2 lines in the string. i mean Enter Mark (
) is in the string. so i split the string with space and joined the all the values again to get the single line string. then i use the substring operation. so it's work fine. Final Code : string[] sh = elespt[0].Split(' '); string val = ; int k = sh.Length - 6; for (int n = k;n { if (val == ) val = sh[n]; else val = val +   + sh[n]; }

Rajeev Punhani · Answer

Hi Karthi Keyan Second parameter of Substring is the number of characters starting from the index you specified.Since you have given l2 as length of string -1 so it will be out of range. Please try p1=val.Substring(l1 l2-l1);