how to find if a file is open or not

Code Snippet
   using System;
    using System.Management;
    // Search the processes which have a certain file open
    class App {
        public static void Main() {
        WhoHasThisFileOpen(@"c:\\windows\\system32\\wsock32.dll");
    }
    static void WhoHasThisFileOpen(string objectQry){
    SelectQuery query = new SelectQuery("select name from cim_datafile where
    name ='" + objectQry +"'" );
    using(ManagementObjectSearcher searcher = new
    ManagementObjectSearcher(query)) {
    foreach (ManagementObject mo in searcher.Get()) {
    Console.WriteLine("File Name: {0} \nIs currently opened by:",
    mo.Properties["Name"].Value);
    // Get processes having this File open
    foreach (ManagementBaseObject b in mo.GetRelated("Win32_Process")) {
    ShowProcessProperties(b.ToString());
    b.Dispose();
    }
    }
    }
    }
    static void ShowProcessProperties(string objectClass) {
    using(ManagementObject process = new ManagementObject (objectClass))
    {
    process.Get();
    PropertyDataCollection processProperties = process.Properties;
    Console.WriteLine("ProcessID: {0,6} \tCommandLine: {1}" ,
    processProperties["ProcessID"].Value,
    processProperties["CommandLine"].Value);
    }
    }
    }

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Raj Kumar17y ago

Code Snippet
    using System;
    using System.Management;
    // Search the processes which have a certain file open
    class App {
        public static void Main() {
        WhoHasThisFileOpen(@"c:\\windows\\system32\\wsock32.dll");
    }
    static void WhoHasThisFileOpen(string objectQry){
    SelectQuery query = new SelectQuery("select name from cim_datafile where
    name ='" + objectQry +"'" );
    using(ManagementObjectSearcher searcher = new
    ManagementObjectSearcher(query)) {
    foreach (ManagementObject mo in searcher.Get()) {
    Console.WriteLine("File Name: {0} \nIs currently opened by:",
    mo.Properties["Name"].Value);
    // Get processes having this File open
    foreach (ManagementBaseObject b in mo.GetRelated("Win32_Process")) {
    ShowProcessProperties(b.ToString());
    b.Dispose();
    }
    }
    }
    }
    static void ShowProcessProperties(string objectClass) {
    using(ManagementObject process = new ManagementObject (objectClass))
    {
    process.Get();
    PropertyDataCollection processProperties = process.Properties;
    Console.WriteLine("ProcessID: {0,6} \tCommandLine: {1}" ,
    processProperties["ProcessID"].Value,
    processProperties["CommandLine"].Value);
    }
    }
    }