Application freezes when trying to read Author from .doc multiple files

Question

I'm trying to make an app that displays all authors of .doc files from a Folder and its subfolders, the problem is that I used Directory.GetFiles("*.doc", SearchOption.AllDirectories) and when I'm trying to read from a folder with very much files, the app freeze in this point. Here is my code

FileInfo[] Files = dir.GetFiles("*.doc", SearchOption.AllDirectories);
foreach(FileInfo file in Files) 
{
    try
    {
        //ConvertDOCToDOCX(file.FullName);
        using(WordprocessingDocument sourcePresentationDocument = WordprocessingDocument.Open(file.FullName, false)) 
        {
            metadataList.Add(new Metadata() 
            {
                Name = "Title", Value = file.Name
            });
            metadataList.Add(new Metadata() 
            {
                Name = "Author", Value = sourcePresentationDocument.PackageProperties.Creator
            });
            metadataList.Add(new Metadata() 
            {
                Name = "", Value = ""
            });
        }
    }
}

score 1 · Accepted Answer · edited May 23 '17 at 12:30

1

I think you dont need this "WordprocessingDocument" - this is producing a heavy load - you can just read the meta-information via .net default file methods.

For an example, you should take a look at Read/Write 'Extended' file properties (C#)

edited May 23 '17 at 12:30

Community

1
1

answered May 15 '15 at 07:10

Cadburry

1,844
10
21

thanks,it helped but is there any way to check all subdirectories of the path with shell32? – Stern Edi May 15 '15 at 07:38
I dont think so, you have to iterate through all folders recursively – Cadburry May 15 '15 at 08:29

score 0 · Answer 2 · answered May 15 '15 at 07:09

the app freeze in this point

Yes, because you're doing a lot of work in the UI thread. Don't do that - never do that.

You should probably do all that work in a background thread (either with BackgroundWorker or maybe Task.Run) and then only modify the UI (on the UI thread) when you're done.

Application freezes when trying to read Author from .doc multiple files

2 Answers2