How to construct WMI query

问题

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();

What's wrong?

For comparision

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

works well

回答1:

Try this:

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

Adding some test info:

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"] );
}

Output: