getting Error on Substring in vb.net

2014年4月5日 — I need to find Only B Value which is in middle of Last String ie 6BC but i am getting eror on this line strMyString.Substring(2, 1).ToString.

Substring(Int32). 從這個執行個體擷取子字串。 子字串會在指定的字元位置開始並繼續到字串的結尾。 Substring(Int32, Int32). 從這個執行個體擷取子字串。

Substring has an overload where you specify the length. If that pattern always persists you can do data.Substring(separatorIndex + separator.Length, 5)

Another useful string method in VB NET is Substring. This allows you to grab one string within another. (For example, if you wanted to grab the .com from ...

2024年2月16日 — Substring copies a series of characters from a source string into a new string that is allocated upon the managed heap. It is called with 1 or 2 arguments.

2024年2月3日 — The substring function is used to obtain a part of a specified string. This method is defined in the String class of Microsoft VB.NET.

The biggest difference is that Mid doesn't throw any exceptions, while substring will throw if any of your indexes are out of range.

2008年11月30日 — VB可以使用Mid函數來截部份字串，InStr+Mid可以讓功能更加完善；在未知字串長度下，利用InStr判斷字串位置，再用Mid截取。 .Net則是用Substring方法來截部 ...

2024年3月13日 — NET Framework String.Substring 方法會取得字串中要啟動substring 所在的字元索引，從位置0 開始。 因此，如果您有字串ABCDE，則個別字元會編號為1、2、3 ...