尝试从Win32_Printer获取本地安装的远程打印机信息时,出现“无效查询”错误。
string query = "SELECT * from Win32_Printer WHERE Name = '\\\\Server\\PrinterName'";
ManagementScope scope = new ManagementScope(ManagementPath.DefaultPath);
SelectQuery objQuery = new SelectQuery(query);
using (ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, objQuery))
using (ManagementObjectCollection coll = searcher.Get())
{
foreach (ManagementObject printer in coll)
{
foreach (PropertyData property in printer.Properties)
{
result.Add(property.Name, property.Value);
}
}
}
我叫名字 '\\\\ Server \\ PrinterName' 从 System.Drawing.Printing.PrinterSettings.InstalledPrinters。
如果我将查询更改为
"SELECT * from Win32_Printer WHERE Name LIKE '%PrinterName'"
它可以工作,但是我如何查询全名?
答案 0 :(得分:0)
根据@JeroenMostert的评论,在c#和wmi中,'\'字符都是转义字符,因此解决方案是将它们加倍。