C#

Brij wrote:

but for better flexibility and avoid Exceptions one can use it.

bool CanWriteToFolder(string folder)
{
     FileIOPermission f = new FileIOPermission(FileIOPermissionAccess.Write, folder);
     try {
         f.Demand();
     }
     catch (SecurityException) {
         return false;
     }
     return true;
}

string directoryPath = "C:\\XYZ"; //folderBrowserDialog.SelectedPath;<br />
               bool isWriteAccess = false;<br />
               try<br />
               {<br />
                  AuthorizationRuleCollection collection = Directory.GetAccessControl(directoryPath).GetAccessRules(true, true, typeof(System.Security.Principal.NTAccount));<br />
                  foreach (FileSystemAccessRule rule in collection)<br />
                  {<br />
                     if (rule.AccessControlType == AccessControlType.Allow)<br />
                     {<br />
                        isWriteAccess = true;<br />
                        break;<br />
                     }<br />
                  }<br />
               }<br />
               catch (UnauthorizedAccessException ex)<br />
               {<br />
                  isWriteAccess = false;<br />
               }<br />
               catch (Exception ex)<br />
               {<br />
                  isWriteAccess = false;<br />
               }<br />
               if (!isWriteAccess)<br />
               {<br />
                 //handle notifications                 <br />
               }

// Get the compiler
CSharpCodeProvider cp = new CSharpCodeProvider();
ICodeCompiler icc = cp.CreateCompiler();

// Compile the file
CompilerParameters parms = new CompilerParameters();
parms.GenerateExecutable = true;
parms.OutputAssembly = Output;
CompilerResults results = icc.CompileAssemblyFromFile (parms, "HelloWorld.cs");

System.Xml.XmlDocument xmlDocument = new System.Xml.XmlDocument();
xmlDocument.Load(@"c:\text.xml");


// Fetch all 'item' xml elements with attribute 'No' equal to 1000
System.Xml.XmlNodeList xmlNodeList = xmlDocument.SelectNodes("//Item[@No='1000']");

foreach (System.Xml.XmlNode xmlNode in xmlNodeList)
{
    // Display the value of 'Item' xml element
    Console.WriteLine(xmlNode.Value);
}