[C#.NET][VB.NET] 如何利用 ManagementObjectSearcher 列舉 WMI 類別
1.需要加入System.Management參考，以及引用System.Management類別
2.利用 ManagementObjectSearcher 搜尋WMI類別
ManagementObjectSearcher Query = new ManagementObjectSearcher(strQuery);
3.利用 ManagementObjectCollection 擷取各種管理物件集合
ManagementObjectCollection EnumWMI = Query.Get();
C#完整範例
private void button1_Click(object sender, EventArgs e)
{
long i = 0;
this.listBox1.Items.Clear();
//1.定義問句
String strQuery = "select * from meta_class";
//2.引用ManagementObjectSearcher
ManagementObjectSearcher Query = new ManagementObjectSearcher(strQuery);
//3.擷取各種WMI集合
ManagementObjectCollection EnumWMI = Query.Get();
//4.列舉WMI類別
foreach (ManagementObject searcher in EnumWMI)
{
i++;
this.listBox1.Items.Add(searcher.ToString());
}
this.label1.Text = i.ToString();
}
VB完整範例
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim i As Long = 0
Me.ListBox1.Items.Clear()
'1.定義問句
Dim strQuery As [String] = "select * from meta_class"
'2.引用ManagementObjectSearcher
Dim Query As New ManagementObjectSearcher(strQuery)
'3.擷取各種WMI集合
'ManagementObjectCollection EnumWMI = Query.Get();
Dim EnumWMI As ManagementObjectCollection = Query.[Get]()
'4.列舉WMI類別
For Each searcher As ManagementObject In EnumWMI
i += 1
Me.ListBox1.Items.Add(searcher.ToString())
Next
Me.Label1.Text = i.ToString()
End Sub
4.範例下載：EnumWMI.rar
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Microsoft MVP Award 2010~2017 C# 第四季
Microsoft MVP Award 2018~2022 .NET
