正则表达式模式以匹配和替换字符串C＃中的版本号

Question

I want to find replace Version number from a string by using Regex in c#.

string is like this:

string val="AA.EMEA.BizTalk.GroupNettingIntegrations, Version=1.0.0.0, Culture=neutral, PublicKeyToken=a86ac114137740ef";

Is any one can help me to solve this problem.

Answer 1

It seems to me you could easily accomplish this without a regex and have your code be easier to read:

 string components[] = someAssemblyFullyQualifiedName.Split(new char[] { ',' }, StringSplitOptions.IgnoreEmptyEntires);

 if(components.Length > 1)
    components[1] = "Version=2.0.0.0"; // whatever you want to replace with

 string newFullyQualifiedName = string.Join(",", components):

Answer 2

The following Regex will do the replace you are looking for.

string val = "AA.EMEA.BizTalk.GroupNettingIntegrations, Version=1.0.0.0, Culture=neutral, PublicKeyToken=a86ac114137740ef";
val = Regex.Replace(val, @"Version=[\d\.]+", "Version=2.0.0.0");

EDIT: You can also use look-behind Regex functionality if you don't want to have to put the "Version=" in the replacement string. If you are looking for that, add a comment and I'll draw it up.