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DirectoryInfo.Exists Property

Gets a value indicating whether the directory exists.

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

public override bool Exists { get; }

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 System;
using System.IO;

namespace DirectoryInfoCS2
{
    class Class1
    {
        // Copy a source directory to a target directory. 
        static public void CopyDirectory(string SourceDirectory, string TargetDirectory)
        {
            DirectoryInfo	source = new DirectoryInfo(SourceDirectory);
            DirectoryInfo	target = new DirectoryInfo(TargetDirectory);
			
            //Determine whether the source directory exists. 
            if(!source.Exists)
                return;
            if(!target.Exists)
                target.Create();
			
            //Copy files.
            FileInfo[] sourceFiles = source.GetFiles();	
            for(int i = 0; i < sourceFiles.Length; ++i)
                File.Copy(sourceFiles[i].FullName, target.FullName + "\\" + sourceFiles[i].Name,true);
			
            //Copy directories.
            DirectoryInfo[] sourceDirectories = source.GetDirectories();	
            for(int j = 0; j < sourceDirectories.Length; ++j)
                CopyDirectory(sourceDirectories[j].FullName,target.FullName +"\\" + sourceDirectories[j].Name);
        }

        static void Main(string[] args)
        {
            CopyDirectory("D:\\Tools","D:\\NewTools");
        }
    }
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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