[英]Increment Version Number in C# Code
我正在維護數據庫中的文檔版本。 可以說我要更新或增加版本號。 我已經嘗試過了,但是它顯示了屬性是只讀的?
string _versionDB = "1.0.0.0"
var version = new Version(_versionDB);
version.MajorRevision = version.Minor + 1; //error it says read only
請誰能詳細說明增量版本號的正確方法?
我知道這有點老了,但是對於任何尋求該方法的人來說,這可能會有所幫助:
string _versionDB = "1.0.0.0"
var version = new Version(_versionDB);
// Increment Major version
var newMajorVersion = new Version(version.Major+1,version.Minor,version.Build,version.Revision);
// Increment Minor version
var newMinorVersion = new Version(version.Major,version.Minor+1,version.Build,version.Revision);
// Increment Build version
var newBuildVersion = new Version(version.Major,version.Minor,version.Build+1,version.Revision);
// Increment Revision
var newRevisionVersion = new Version(version.Major,version.Minor,version.Build,version.Revision+1);
要將字符串返回以保存回數據庫(基於變量名的假設):
_versionDB = newMajorVersion.ToString();
您可以創建擴展方法來為您執行添加。 仍然需要自定義代碼; 但是如果您在很多地方都這樣做,那么使用這種輔助方法可能會很有用。 以下是一些可能有用的功能。
public static class VersionExtension {
public static Version IncrementRevision(this Version version) {
return AddVersion(version, 0, 0, 0, 1);
}
public static Version IncrementBuild(this Version version) {
return IncrementBuild(version, true);
}
public static Version IncrementBuild(this Version version, bool resetLowerNumbers) {
return AddVersion(version, 0, 0, 1, resetLowerNumbers ? -version.Revision : 0);
}
public static Version IncrementMinor(this Version version) {
return IncrementMinor(version, true);
}
public static Version IncrementMinor(this Version version, bool resetLowerNumbers) {
return AddVersion(version, 0, 1, resetLowerNumbers ? -version.Build : 0, resetLowerNumbers ? -version.Revision : 0);
}
public static Version IncrementMajor(this Version version) {
return IncrementMajor(version, true);
}
public static Version IncrementMajor(this Version version, bool resetLowerNumbers) {
return AddVersion(version, 1, resetLowerNumbers ? -version.Minor : 0, resetLowerNumbers ? -version.Build : 0, resetLowerNumbers ? -version.Revision : 0);
}
public static Version AddVersion(this Version version, string addVersion) {
return AddVersion(version, new Version(addVersion));
}
public static Version AddVersion(this Version version, Version addVersion) {
return AddVersion(version, addVersion.Major, addVersion.Minor, addVersion.Build, addVersion.Revision);
}
public static Version AddVersion(this Version version, int major, int minor, int build, int revision) {
return SetVersion(version, version.Major + major, version.Minor + minor, version.Build + build, version.Revision + revision);
}
public static Version SetVersion(this Version version, int major, int minor, int build, int revision) {
return new Version(major, minor, build, revision);
}
/*
//one day we may even be able to do something like this...
//https://github.com/dotnet/csharplang/issues/192
public static Version operator +(Version version, int revision) {
return AddVersion(version, 0, 0, 0, revision);
}
public static Version operator ++(Version version) {
return IncrementVersion(version);
}
*/
}
用法示例
void Main()
{
Version myVersion = new Version ("1.2.3.4");
myVersion = myVersion.IncrementRevision();
Console.WriteLine(myVersion); //1.2.3.5
myVersion = myVersion.IncrementMinor();
Console.WriteLine(myVersion); //1.3.0.0
}
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