如何构造 WMI 查询 [英] How to construct WMI query

问题描述

我想找到名称以 param1 开头，以 param2 结尾但我的代码不起作用的结果

I'd like to find results that Name starts with param1, and ends with param2 but my code doesn't work

string wmiQuery = string.Format("SELECT CommandLine FROM Win32_Process WHERE Name LIKE '{0}%' AND Name LIKE '%{1}'", param1, param2);
ManagementObjectSearcher searcher = new ManagementObjectSearcher(wmiQuery);
ManagementObjectCollection retObjectCollection = searcher.Get();

怎么了?

比较

string wmiQuery = string.Format("SELECT CommandLine FROM Win32_Process WHERE Name LIKE '{0}%'", param1);

效果很好

推荐答案

试试这个:

string wmiQuery = string.Format("SELECT CommandLine FROM Win32_Process WHERE Name LIKE '{0}%{1}'", param1, param2);

添加一些测试信息:

string wmiQuery = string.Format ( "SELECT Name, ProcessID FROM Win32_Process WHERE Name LIKE '{0}%{1}'", "wpf", ".exe" );

Console.WriteLine ( "Query: {0}", wmiQuery );

ManagementObjectSearcher searcher = new ManagementObjectSearcher ( wmiQuery );
ManagementObjectCollection retObjectCollection = searcher.Get ( );

foreach (ManagementObject retObject in retObjectCollection)
{
    Console.WriteLine ( "[{0}]	Name: {1}", retObject[ "ProcessID" ], retObject["Name"] );
}

输出:

查询:SELECT 名称，ProcessID FROMWin32_Process WHERE 名称 LIKE'wpf%.exe'
[896] 名称:WPFFontCache_v0400.exe

Query: SELECT Name, ProcessID FROM Win32_Process WHERE Name LIKE 'wpf%.exe'
[896] Name: WPFFontCache_v0400.exe

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