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Forum Discussion
malindor
6 years agoNew member | Level 2
Newbie Question: Compiler error when going from sample to project.
I appolgize if this is not the correct forum for this question. As the issue came up working with the APIs here, I figured I would start here and go elsewhere if necessary.
I'm using the latest .NET dropbox.api library on VS 2019. I have been asked to create a in-house library for other developers to use until we can put together some in-house formal training for everyone on Dropbox's APIs. I've read through the documentation and the sample GitHub code. I reproduced the example and got it working. Everything's good. The working code (abridged for brevity):
static void Main(string[] args) { var task = Task.Run((Func<Task>)Program.Run); task.Wait(); } static async Task Run() { using (var dbx = new DropboxClient("MyAccessToken")) { await CreateFolder(dbx, "/2019-11-07"); Console.ReadKey(); } }
So I move on to starting to build a basic library and will add all the bells and whistles after getting a few functions to work. This is where the problem is. I created what I thought was a similar entry point but now I'm getting a compiler error The erroring code:
public int CreateFolder(string strPath, string FileName) { try { var task = Task.Run((Func<Task>)SoDropbox.CF(Path.Combine(strPath,FileName))); task.Wait(); } catch(Exception e) { return -1; } return 1; } static async Task CF(string strPath) { using (var dbx = client) { var folderArg = new CreateFolderArg(Path); var folder = await dbx.Files.CreateFolderV2Async(folderArg); } }
The error that I am getting is in the first line of the try block or the CreateFolder method. The error is: Cannot convert type 'System.Threading.Tasks.Task' to 'System.Func<System.Threading.Tasks.Task>'
I'm sure this has more to do with my lack of understanding of the Func delegate and asynchronous Tasks but I am not seeing what the difference is between the working code and the new code.
Any help would be appreciated and, like I said, if this is not appropriate for this forum just let me know.
It looks like this is more about managing tasks in .NET/C#, and not really about using the Dropbox API itself, so I'm afraid I can't really be of help here. This question may be better suited somewhere where you can get general .NET/C# programming advice, such as StackOverflow. Apologies I can't be more useful!
- Greg-DBDropbox Staff
It looks like this is more about managing tasks in .NET/C#, and not really about using the Dropbox API itself, so I'm afraid I can't really be of help here. This question may be better suited somewhere where you can get general .NET/C# programming advice, such as StackOverflow. Apologies I can't be more useful!
- malindorNew member | Level 2
No worries. I wasn't sure and doesn't hurt to ask. Thanks for your time.
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