如何构造WMI查询

Question

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

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

Answer 1

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}]\tName: {1}", retObject[ "ProcessID" ], retObject["Name"] );
}

输出:

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

Answer 2

要构建WMI查询,请使用Microsoft提供的免费工具WMI Code Creator,使用不同的编程语言VBS,VB.NET,C#

从http://www.microsoft.com/downloads/en/details.aspx?familyid=2cc30a64-ea15-4661-8da4-55bbc145c30e&displaylang=en下载