关于硬盘序列号的问题

Question

我想获得硬盘的物理序列号，下面是代码，可以获得，现在问题是，当电脑插入存储设备，如mp3时，程序获得的就不是硬盘序列号了，而是关于mp3的信息，我机器上是“USB 2.0(HS)、、、”，怎么解决呀，小弟急用
string hardNumber = "";
                ManagementClass cimobject1 = new ManagementClass("Win32_DiskDrive");
                ManagementObjectCollection moc1 = cimobject1.GetInstances();
                try
                {
                    foreach (ManagementObject mo in moc1)
                    {
                        hardNumber = (string)mo.Properties["Model"].Value;
                       
                    }
                    MessageBox.Show(hardNumber);
                }
                catch
                { 
                }

Answer 1

参考：
http://topic.csdn.net/u/20071027/16/955bf7e0-6bbc-4049-af09-ac6e48189743.html
判断类型来获取

Answer 2

//因为你的moc1是个Collection,你取到的只是最后一个盘的信息
            string hardNumber = "";
            ManagementClass cimobject1 = new ManagementClass("Win32_DiskDrive");
            ManagementObjectCollection moc1 = cimobject1.GetInstances();
            try
            {
                foreach (ManagementObject mo in moc1)
                {
                    hardNumber = (string)mo.Properties["Model"].Value;
                    this.listBox1.Items.Add(hardNumber);//there
                }
            }
            catch
            {
            }

Answer 3

因为你的moc1是个Collection,你取到的只是最后一个盘的信息

Answer 4

string hardNumber = ""; 
                ManagementClass cimobject1 = new ManagementClass("Win32_DiskDrive"); 
                ManagementObjectCollection moc1 = cimobject1.GetInstances(); 
                try 
                { 
                    foreach (ManagementObject mo in moc1) 
                    { 
                        if((string)mo.Properties["DeviceID"] ==@"\\.\PHYSICALDRIVE0")
                        {
                                hardNumber = (string)mo.Properties["Model"].Value; 
                                break;
                        }                      
                    } 
                    MessageBox.Show(hardNumber); 
                } 
                catch 
                { 
                }

Answer 5

string hardNumber = ""; 
                ManagementClass cimobject1 = new ManagementClass("Win32_DiskDrive"); 
                ManagementObjectCollection moc1 = cimobject1.GetInstances(); 
                try 
                { 
                    foreach (ManagementObject mo in moc1) 
                    { 
                        if((string)mo.Properties["DeviceID"] ==@"\\.\PHYSICALDRIVE0") 
                        { 
                                hardNumber = (string)mo.Properties["Model"].Value; 
                                break; 
                        }                      
                    } 
                    MessageBox.Show(hardNumber); 
                } 
                catch 
                { 
                }

Answer 6

if((string)mo.Properties["DeviceID"] ==@"\\.\PHYSICALDRIVE0") 
对不起呀，可是这里报错，“无法将、、、类型转化为string类型”，把前面的string去掉，后面换成
if(mo.Properties["DeviceID"].Tostring() ==@"\\.\PHYSICALDRIVE0") ,就什么也获得不了，高手再指教，谢谢

Answer 7

sorry
string hardNumber = ""; 
                ManagementClass cimobject1 = new ManagementClass("Win32_DiskDrive"); 
                ManagementObjectCollection moc1 = cimobject1.GetInstances(); 
                try 
                { 
                    foreach (ManagementObject mo in moc1) 
                    { 
                        if((string)mo.Properties["DeviceID"].Value  ==@"\\.\PHYSICALDRIVE0") 
                        { 
                                hardNumber = (string)mo.Properties["Model"].Value; 
                                break; 
                        }                      
                    } 
                    MessageBox.Show(hardNumber); 
                } 
                catch 
                { 
                }

Answer 8

这位大哥，再问几句报这种警告怎么解决？？？“上下文“0x1a2050”已断开连接。正在从当前上下文(上下文 0x1a1ee0)释放接口。这可能会导致损坏或数据丢失。要避免此问题，请确保在应用程序全部完成 RuntimeCallableWrapper (表示其内部的 COM 组件)”

Answer 9

        public string GetWMIInfo(string sInfoType, string sWin32_Database)
        {
            try
            {
                ManagementObjectSearcher searcher = new ManagementObjectSearcher("Select " + sInfoType + " From " + sWin32_Database);
                string sResult = "";
                foreach (ManagementObject mo in searcher.Get())
                {
                    sResult = mo[sInfoType].ToString().Trim();
                }
                return sResult;
            }
            catch
            {
                return "";
            }
        }
//获取主板序列号
        public string GetBIOSSerialNumber()
        {
            return GetWMIInfo("SerialNumber", "Win32_BIOS");
        }        //获取CPU序列号
        public string GetCPUSerialNumber()
        {
            return GetWMIInfo("ProcessorId", "Win32_Processor");
        }        //获取硬盘序列号
        public string GetHardDiskSerialNumber()
        {
            return GetWMIInfo("SerialNumber", "Win32_PhysicalMedia");
       }        //获取网卡地址
        public string GetNetCardMACAddress()
        {
            return GetWMIInfo("MACAddress", "Win32_NetworkAdapter WHERE ((MACAddress Is Not NULL) AND (Manufacturer <> 'Microsoft'))");
        }