DirectoryInfo::Exists Property

 

Gets a value indicating whether the directory exists.

Namespace:   System.IO
Assembly:  mscorlib (in mscorlib.dll)

public:
property bool Exists {
	virtual bool get() override;
}

Property Value

Type: System::Boolean

true if the directory exists; otherwise, false.

The Exists property returns false if any error occurs while trying to determine if the specified file exists. This can occur in situations that raise exceptions such as passing a file name with invalid characters or too many characters, a failing or missing disk, or if the caller does not have permission to read the file.

The following example demonstrates a use of the Exists property in the context of copying a source directory to a target directory.

using namespace System;
using namespace System::IO;

// Copy a source directory to a target directory.
void CopyDirectory( String^ SourceDirectory, String^ TargetDirectory )
{
   DirectoryInfo^ source = gcnew DirectoryInfo( SourceDirectory );
   DirectoryInfo^ target = gcnew DirectoryInfo( TargetDirectory );

   //Determine whether the source directory exists.
   if (  !source->Exists )
      return;

   if (  !target->Exists )
      target->Create();


   //Copy files.
   array<FileInfo^>^sourceFiles = source->GetFiles();
   for ( int i = 0; i < sourceFiles->Length; ++i )
      File::Copy( sourceFiles[ i ]->FullName, String::Concat( target->FullName, "\\", sourceFiles[ i ]->Name ), true );

   //Copy directories.
   array<DirectoryInfo^>^sourceDirectories = source->GetDirectories();
   for ( int j = 0; j < sourceDirectories->Length; ++j )
      CopyDirectory( sourceDirectories[ j ]->FullName, String::Concat( target->FullName, "\\", sourceDirectories[ j ]->Name ) );
}

int main()
{
   CopyDirectory( "D:\\Tools", "D:\\NewTools" );
}

Universal Windows Platform
Available since 10
.NET Framework
Available since 1.1
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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