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C# RegistryKey.OpenSubKey方法代码示例

本文整理汇总了C#中Microsoft.Win32.RegistryKey.OpenSubKey方法的典型用法代码示例。如果您正苦于以下问题:C# RegistryKey.OpenSubKey方法的具体用法?C# RegistryKey.OpenSubKey怎么用?C# RegistryKey.OpenSubKey使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Microsoft.Win32.RegistryKey的用法示例。

在下文中一共展示了RegistryKey.OpenSubKey方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的C#代码示例。

示例1: Main

//引入命名空间
using System;
using Microsoft.Win32;
using Microsoft.VisualBasic;

public class Example
{
    public static void Main()
    {
        // Delete and recreate the test key.
        Registry.CurrentUser.DeleteSubKey("RegistryOpenSubKeyExample", false);
        RegistryKey rk = Registry.CurrentUser.CreateSubKey("RegistryOpenSubKeyExample");
        rk.Close();

        // Obtain an instance of RegistryKey for the CurrentUser registry 
        // root. 
        RegistryKey rkCurrentUser = Registry.CurrentUser;

        // Obtain the test key (read-only) and display it.
        RegistryKey rkTest = rkCurrentUser.OpenSubKey("RegistryOpenSubKeyExample");
        Console.WriteLine("Test key: {0}", rkTest);
        rkTest.Close();
        rkCurrentUser.Close();

        // Obtain the test key in one step, using the CurrentUser registry 
        // root.
        rkTest = Registry.CurrentUser.OpenSubKey("RegistryOpenSubKeyExample");
        Console.WriteLine("Test key: {0}", rkTest);
        rkTest.Close();

        // Open the test key in read/write mode.
        rkTest = Registry.CurrentUser.OpenSubKey("RegistryOpenSubKeyExample", true);
        rkTest.SetValue("TestName", "TestValue");
        Console.WriteLine("Test value for TestName: {0}", rkTest.GetValue("TestName"));
        rkTest.Close();
    } //Main
} //Example
开发者ID:.NET开发者,项目名称:Microsoft.Win32,代码行数:37,代码来源:RegistryKey.OpenSubKey


示例2: Main

//引入命名空间
using System;
using Microsoft.Win32;
using System.Diagnostics;

public class Example
{
    public static void Main()
    {
        const int LIMIT = 100;
        RegistryKey cu = Registry.CurrentUser;
        const string testKey = "RegistryKeyPermissionCheckExample";

        Console.WriteLine("Generating {0} key/value pairs.", LIMIT);
        RegistryKey rk = cu.CreateSubKey(testKey);
        for (int i = 0; i < LIMIT; i++)
        {
            rk.SetValue("Key" + i, i);
        }

        rk.Close();

        Stopwatch s = new Stopwatch();

        // On the default setting, security is checked every time
        // a key/value pair is read.
        rk = cu.OpenSubKey(testKey, RegistryKeyPermissionCheck.Default);
        
        s.Start();
        for (int i = 0; i < LIMIT; i++)
        {
            rk.GetValue("Key" + i, i);
        }
        s.Stop();
        rk.Close();
        long delta1 = s.ElapsedTicks;

        s.Reset();

        // When the key is opened with ReadSubTree, security is 
        // not checked when the values are read.
        rk = cu.OpenSubKey(testKey, RegistryKeyPermissionCheck.ReadSubTree);
        
        s.Start();
        for (int i = 0; i < LIMIT; i++)
        {
            rk.GetValue("Key" + i, i);
        }
        s.Stop();
        rk.Close();
        long delta2 = s.ElapsedTicks;

        double faster = (double) (delta1 - delta2) / (double) delta1;
        Console.WriteLine("ReadSubTree is {0}% faster for {1} values.",
            (faster * 100).ToString("0.0"), LIMIT);

        cu.DeleteSubKey(testKey);
    }
}
开发者ID:.NET开发者,项目名称:Microsoft.Win32,代码行数:59,代码来源:RegistryKey.OpenSubKey

输出:

Generating 100 key/value pairs.
ReadSubTree is 23.4% faster for 100 values.


示例3: SearchSubKeys

//引入命名空间
using System;
using Microsoft.Win32;

class MainClass
{
    public static void SearchSubKeys(RegistryKey root, String searchKey)
    {
        foreach (string keyname in root.GetSubKeyNames())
        {
            try
            {
                using (RegistryKey key = root.OpenSubKey(keyname))
                {
                    if (keyname == searchKey) {
                        foreach (string valuename in key.GetValueNames())
                        {
                            if (key.GetValue(valuename) is String)
                            {
                                Console.WriteLine("  Value : {0} = {1}",
                                    valuename, key.GetValue(valuename));
                            }
                        }
                    }
                    SearchSubKeys(key, searchKey);
                }
            }
            catch (System.Security.SecurityException)
            {
            }
        }
    }

    public static void Main(String[] args)
    {
        using (RegistryKey root = Registry.CurrentUser)
        {
            string myKey="Java";
            SearchSubKeys(root, myKey);
        }
    }
}
开发者ID:C#程序员,项目名称:Microsoft.Win32,代码行数:42,代码来源:RegistryKey.OpenSubKey



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