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Posted 19 Nov 2003

Folder Size Information in the Windows Explorer Details View

, 18 Aug 2010
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This code displays the folder size information in the Explorer's Details view.
Sample Image - DirSize.jpg

Introduction

In day to day life, when one wants to know the size of a folder, (s)he has to right click on the folder name and has to choose the Properties. Using this DLL, one can view the folder size as one of the columns of the Explorer as shown in the image. We also have the facility to sort according to the folder size. (I did not do anything to sort, it is done by Explorer. :))

This class implements the Shell interface called IColumnProvider. Using this interface, one can customize the Explorer's Details view. This class adds one more column to the Details view, which displays the consolidated folder size.

To build this project, you must install Microsoft Platform SDK, or click here [53.5 KB] to download SHLOBJ.h.

How to Use the DLL

Well, if you build the project, you need not do anything, since the IDE automatically registers the DLL. If demo project is downloaded, then unzip the DLL and register it using the command "regsvr32 <Path of the unzipped DLL>". E.g., Regsvr32 c:\DirSize.DLL, if the DLL is present in C:.

Scope for Further Improvements

This code can be modified to display the number of files/folders in the folder. Or maybe, you can pack two more classes to display columns for number of files and number of folders into the same DLL to do so.

Performance Issues

When the user selects the "Folder Size" item from the Explorer context menu, the Explorer starts calculating the folder size by traversing all the files and nested folders. First time, it might take some minutes depending upon the contents of the folder. But all the operations are done in the background (Explorer is smart enough!.. Ehh). So this won't stop you from traversing through other files.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Sharan Basappa
Team Leader
India India
He is a graduate, currently working as a Software Engineer in Bangalore, India. You can reach him at sharan34@yahoo.com

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Comments and Discussions

 
GeneralMy vote of 1 Pin
Member 1254146323-May-16 9:50
memberMember 1254146323-May-16 9:50 
QuestionFolder Size workink but no sorting correct by Folder Size Pin
vmix28-Apr-15 2:18
membervmix28-Apr-15 2:18 
Questiongood code Pin
Member 102766607-Apr-14 23:40
memberMember 102766607-Apr-14 23:40 
GeneralMy vote of 5 Pin
Michael Haephrati מיכאל האפרתי20-Feb-13 5:07
mvpMichael Haephrati מיכאל האפרתי20-Feb-13 5:07 
QuestionFolder Size working but Ascending and Descending order not working! Pin
Aniljpatil2-Dec-11 21:56
memberAniljpatil2-Dec-11 21:56 
Dear Sir,
I have downloaded the file and activated it as per given procedure. After that I made visible the 'Folder Size' column and the Folder size with number of files and folders is appearing. But when I click on the Heading of the 'Folder Size' Column the Folders are not getting arranged in Ascending & Descending Order as per their Size. Even the 3 information's (Folder size, no. of files & no. of folders) look a bit congested and not orderly! Is it possible to separate these 3 information's in different columns or semi columns? Or is it possible to present them with a tab space in between them?

Best regards,

Anil
QuestionThanks! - Folder Size is what I was looking for. Pin
ww dd19-Oct-11 6:29
memberww dd19-Oct-11 6:29 
GeneralGood Job! Pin
omzig2-Sep-11 6:03
memberomzig2-Sep-11 6:03 
Questionadd a column for file/path length in windows explorer Pin
Member 435848925-Aug-11 11:32
memberMember 435848925-Aug-11 11:32 
GeneralMany Thanks!!! Pin
Member 791160310-May-11 2:14
memberMember 791160310-May-11 2:14 
GeneralNew DLL uploaded Pin
Sharan Basappa18-Aug-10 17:55
memberSharan Basappa18-Aug-10 17:55 

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