1 ///
2 /// 检测计算机已经安装的NetFramework版本
3 ///
4 internal void GetVersionFromRegistry()
5 {
6 using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,
7 RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
8 {
9 foreach (string versionKeyName in ndpKey.GetSubKeyNames())
10 {
11 if (versionKeyName.StartsWith("v"))
12 {
13 RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
14 string name = (string)versionKey.GetValue("Version", "");
15 string sp = versionKey.GetValue("SP", "").ToString();
16 string install = versionKey.GetValue("Install", "").ToString();
17 if (install == "") //no install info, ust be later
18 Console.WriteLine(versionKeyName + " " + name);
19 else
20 {
21 if (sp != "" && install == "1")
22 {
23 Console.WriteLine(versionKeyName + " " + name + " SP" + sp);
24 }
25 }
26 if (name != "")
27 {
28 continue;
29 }
30 foreach (string subKeyName in versionKey.GetSubKeyNames())
31 {
32 RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
33 name = (string)subKey.GetValue("Version", "");
34 if (name != "")
35 sp = subKey.GetValue("SP", "").ToString();
36 install = subKey.GetValue("Install", "").ToString();
37 if (install == "") //no install info, ust be later
38 Console.WriteLine(versionKeyName + " " + name);
39 else
40 {
41 if (sp != "" && install == "1")
42 {
43 Console.WriteLine(" " + subKeyName + " " + name + " SP" + sp);
44 }
45 else if (install == "1")
46 {
47 Console.WriteLine(" " + subKeyName + " " + name);
48 }
49 }
50 }
51 }
52 }
53 }
54 }
