Finding the size of a folder

bharathreddy

How to find the size of a folder using C# code?

step1:
Here take the folder which u want to find the size, then pass that folder to the recursive function name FolderSize!.

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 DirectoryInfo dirInfo = new DirectoryInfo(strPath) ;            

decimal dSize = 0;

//If the folder exists then only its size will be calculated if not its size will be 

//zero!

 if (dirInfo.Exists)

                dSize = FolderSize(dirInfo);

Step2:

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 #region FolderSize (Recursive Function)

    /// <summary>

    /// This method is used to find the size of the folder specified.

    /// This method is called recursively to find the length of the folder.

    /// </summary>

    /// <param name="dirInfo"></param>

    /// <returns></returns>

    protected decimal FolderSize(DirectoryInfo dirInfo)

    {

        decimal dSize = 0;
 
        //Size of the files in that specific fodler.

        foreach (FileInfo fileInfo in dirInfo.GetFiles())

        {

            dSize += Math.Abs((decimal)(fileInfo.Length / 1024.0));

        }
 
        //Size of the files in the child folders

        foreach (DirectoryInfo childDir in dirInfo.GetDirectories())

        {

            dSize += FolderSize(childDir);

        }

        return dSize;

    }

    #endregion

This is the simple recursive method used for finding the size of the folder hirarchy!.

Thanks & Regards
Bharath Reddy VasiReddy

bharathreddy

If u want to round off the value to a two digit after the point, use the below statement instead of dSize = FolderSize(dirInfo);

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  //Round to the two decimal digit.            

 dSize = Math.Round(FolderSize(dirInfo),2);

Thanks & Regards
Bharath Reddy VasiReddy

Frinavale

Thanks for this solution Bharath. Great example of using recursion.

-Frinny

insertAlias

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