WebВторой параметр String.Substring обозначает длину подстроки или количество символов, которое вы хотите вытащить из строки.. length Type: System.Int32 … WebWhen you try to go beyond the string length, or use an argument less than 0, you will get this exception. C# substring Performance. C# Strings are immutable, so you can't modify an existing string. If you try to change the string with the substring method then you end up with an entirely new string. You can't ever change an existing string.

C# Left, Right, and Mid string methods · Kodify

WebFeb 10, 2024 · We can use the Substring method and pass it starting index 0 and length of the substring 12 to get the first 12 char substring from a string. The following code snippet is an example of retrieving a 12 chars … WebNov 29, 2024 · To get a mid string of a certain length, we call C#’s Substring () method on a string. We give that method two arguments. The first is the start index. The second is how many characters to return. That looks like: string.Substring (index, count). For example: string example = "Hello, World!"; diagram of septic system and drain field

String.Trim Method (System) Microsoft Learn

WebJul 7, 2024 · Parameter name: length ". The error message tells you that you try to substring outside of the string. In C# line.Substring ( 0, 1 ).ToString () you forgot to check that line contain at least 1 char. With the debugger, you can watch the program as it perform. Your code do not behave the way you expect, and you don't understand why ! WebFormattableString FtpStyleUriParser Func Func Func Func Func Func Func Func Func … WebApr 12, 2024 · Substring (i * 8, 8); // 将字节的二进制表示转换为一个字节，并存储在字节数组中 byteArray [i] = Convert. ToByte (byteString, 2);} // 返回字节数组 return byteArray;} … cinnamon roll loaf cake