Forum Discussion

saharin's avatar
saharin
Explorer | Level 4
2 years ago

Dropbox api. not worked foreach (var item in list.Entries.Where(i => i.IsFolder))

I want to use the dropbox api. I use the code from this page - https://www.dropbox.com/developers/documentation/dotnet#tutorial .

But in my Visual.Studio throws an error -
CS1061 "IList<Metadata>" does not contain a definition of "Where", and it was not possible to find an available "Where" extension method that accepts the type "IList<Metadata>" as the first argument (perhaps the using directive or assembly reference was omitted).
Why doesn 't it recognize WHERE ?

 

Code:

async Task ListRootFolder(DropboxClient dbx)
{
var list = await dbx.Files.ListFolderAsync(string.Empty);

// show folders then files
foreach (var item in list.Entries.Where(i => i.IsFolder))
{
Console.WriteLine("D {0}/", item.Name);
}

foreach (var item in list.Entries.Where(i => i.IsFile))
{
Console.WriteLine("F{0,8} {1}", item.AsFile.Size, item.Name);
}
}

  • Здравко's avatar
    Здравко
    Legendary | Level 20

    Hi saharin,

    Hm..🤔 It's something strange - seems like a problem of your environment (Visual Studio in the case).

    Try something like following simpler code:

    async Task ListRootFolder(DropboxClient dbx)
    {
        var list = await dbx.Files.ListFolderAsync(string.Empty);
    
        foreach (var item in list.Entries)
        {
            Console.WriteLine("{0} {1,10} {2}", item.IsFolder ? "D->" : "F->",
              item.IsFolder ? "" : item.AsFile.Size.ToString(), item.Name); 
        }
    }

    Does this show the same (or some other) error?

      • Greg-DB's avatar
        Greg-DB
        Icon for Dropbox Staff rankDropbox Staff

        saharin Can you clarify what you mean when you say "This ok"? Have you resolved this issue?

  • Greg-DB's avatar
    Greg-DB
    Icon for Dropbox Staff rankDropbox Staff

    saharin I just tried out that original code sample, and it worked for me.

     

    If you're still having trouble with this, can you let me know the version numbers of each of the following that you're using?

    • Visual Studio
    • .NET Framework
    • Dropbox .NET package
    • saharin's avatar
      saharin
      Explorer | Level 4

      VS - 2019

      .NET 5.0

      dropbox api 6.37.0

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