using System.Windows.Forms; using Microsoft.Win32; namespace RegeditManager { public partial class Form1 : Form { public Form1() { InitializeComponent(); } //创建并写入 private void button1_Click(object sender, EventArgs e) { RegistryKey key = Registry.LocalMachine; try { RegistryKey software = key.CreateSubKey("software\\LabManager"); software = key.OpenSubKey("software\\LabManager", true); software.SetValue("Address", @"C:\Program Files\实验室管理系统\dbcom.xml"); } catch (Exception ex) { MessageBox.Show(ex.ToString()); } finally { key.Close(); } } //读取 private void button2_Click(object sender, EventArgs e) { string info = string.Empty; RegistryKey key=Registry.LocalMachine; try { key = key.OpenSubKey("software\\LabManager"); if (IsRegeditKeyExit("software\\LabManager", "Address")) { info = key.GetValue("Address").ToString(); MessageBox.Show("注册表里的信息为:" + info); } else { MessageBox.Show("键值Address不存在;"); } } catch (Exception ex) { MessageBox.Show(ex.ToString()); } finally { key.Close(); } } //删除 private void button3_Click(object sender, EventArgs e) { RegistryKey key = Registry.LocalMachine; try { key = key.OpenSubKey("software\\LabManager",true); if (IsRegeditKeyExit("software\\LabManager", "Address")) { key.DeleteValue("Address"); MessageBox.Show("删除成功"); } else { MessageBox.Show("键值Address不存在;"); } } catch (Exception ex) { MessageBox.Show(ex.ToString()); } finally { key.Close(); } } /// <summary> /// 判断键值是否存在 /// </summary> /// <param name="RegistryStr">注册表项</param> /// <param name="KeyStr">键值</param> /// <returns></returns> private bool IsRegeditKeyExit(string RegistryStr,string KeyStr) { string[] subkeyNames; RegistryKey hkml = Registry.LocalMachine; RegistryKey software = hkml.OpenSubKey(RegistryStr); subkeyNames = software.GetValueNames(); foreach (string keyName in subkeyNames) { if (keyName == KeyStr) //判断键值的名称 { hkml.Close(); return true; } } hkml.Close(); return false; } /// <summary> /// 判断注册表项是否存在 /// </summary> /// <param name="RegistryName">例如:SOFTWARE</param> /// <param name="ValueStr">例如:LabManager</param> /// <returns></returns> private bool IsRegeditItemExist(string RegistryName,string ValueStr) { string[] subkeyNames; RegistryKey hkml = Registry.LocalMachine; RegistryKey software = hkml.OpenSubKey(RegistryName); subkeyNames = software.GetSubKeyNames(); //取得该项下所有子项的名称的序列,并传递给预定的数组中 foreach (string keyName in subkeyNames) //遍历整个数组 { if (keyName == ValueStr) //判断子项的名称 { hkml.Close(); return true; } } hkml.Close(); return false; } } }