VB.NET中怎么访问注册表，针对这个问题，这篇文章详细介绍了相对应的分析和解答，希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。
返回或创建一个注册表键
Dim Key1 As Microsoft.Win32.RegistryKey Key1 = My.Computer.Registry.CurrentUser '返回当前用户键 Dim Key2 As Microsoft.Win32.RegistryKey Key2 = Key1.OpenSubKey("northsnow") '返回当前用户键下的northsnow键 If Key2 Is Nothing Then Key2 = Key1.CreateSubKey("northsnow") '如果键不存在就创建它 End If删除注册表键
Dim Key1 As Microsoft.Win32.RegistryKey Key1 = My.Computer.Registry.CurrentUser '返回当前用户键 Dim Key2 As Microsoft.Win32.RegistryKey Key2 = Key1.OpenSubKey("northsnow") '返回当前用户键下的northsnow键 If Not Key2 Is Nothing Then Key1.DeleteSubKey("northsnow") '如果键不存在就创建它 End If创建或读取注册表项
Dim Key1 As Microsoft.Win32.RegistryKey Key1 = My.Computer.Registry.CurrentUser '返回当前用户键 Dim Key2 As Microsoft.Win32.RegistryKey Key2 = Key1.OpenSubKey("northsnow", True) '返回当前用户键下的northsnow键, 如果想创建项，必须指定第二个参数为true If Key2 Is Nothing Then Key2 = Key1.CreateSubKey("northsnow") '如果键不存在就创建它 End If '创建项，如果不存在就创建，如果存在则覆盖 Key2.SetValue("name", "塞北的雪") Key2.SetValue("sex", True) Key2.SetValue("age", 30) '返回项值 Dim sb As New System.Text.StringBuilder sb.AppendLine(Key2.GetValue("name")) sb.AppendLine(Key2.GetValue("sex")) sb.AppendLine(Key2.GetValue("age")) MsgBox(sb.ToString) '查验某个项是否存在 If (Key2.GetValue("name")) Is Nothing Then MsgBox("no") Else MsgBox("yes") End If If (Key2.GetValue("name2")) Is Nothing Then MsgBox("no") Else MsgBox("yes") End If '输出 ' 塞北的雪 'True '30 'yes 'no遍历注册表
这个也非常简单，在窗体上放一个按钮和两个文本框，添加如下的代码：
Dim sb As New System.Text.StringBuilder '返回遍历结果 Dim sb2 As New System.Text.StringBuilder '返回读取出错的注册表键 Private Sub Button3_Click()Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click Dim Key1 As Microsoft.Win32.RegistryKey Key1 = My.Computer.Registry.CurrentUser '返回当前用户键 If Not Key1 Is Nothing Then sb.AppendLine(Key1.Name) readValue(Key1) readReg(Key1) End If Me.TextBox1.Text = sb.ToString Me.TextBox2.Text = sb2.ToString End Sub '遍历注册表键树 Private Sub readReg()Sub readReg(ByVal r As Microsoft.Win32.RegistryKey) If r.SubKeyCount > 0 Then Dim keyName() As String Dim keyTemp As Microsoft.Win32.RegistryKey keyName = r.GetSubKeyNames Dim i As Integer For i = 0 To keyName.GetLength(0) - 1 Try sb.AppendLine(keyName(i)) keyTemp = r.OpenSubKey(keyName(i), True) readValue(keyTemp) readReg(keyTemp) Catch ex As Exception sb2.AppendLine(keyName(i)) End Try Next End If End Sub '遍历某键下的项 Private Sub readValue()Sub readValue(ByVal r As Microsoft.Win32.RegistryKey) If r.ValueCount > 0 Then Dim valueName() As String Dim i As Integer valueName = r.GetValueNames For i = 0 To valueName.GetLength(0) - 1 sb.AppendLine("####") sb.Append(r.Name) sb.Append("----") sb.Append(r.GetValue(valueName(i)).ToString) Next End If End Sub关于VB.NET中怎么访问注册表问题的解答就分享到这里了，希望以上内容可以对大家有一定的帮助，如果你还有很多疑惑没有解开，可以关注编程网行业资讯频道了解更多相关知识。
