Greg,
Is is possible you could post a snippet of C# code that shows how to call an async method from another class? I want to have a class called DropboxManager where I can put all of the Dropbox code in and then call those methods. But I can't figure out how to pass parameters without another level of indirection. Here are some code snippets to help you understand. This is in the Form_Load method of my Windows Form application
this.dbx = DropboxManager.GetUserToken(this.DropboxDevelopmentAccessToken);
Task<FullAccount> task = Task.Run(GetCurrentAccount);
task.Wait();
this.full = task.Result;
this.lblDropboxUserName.Text = full.Name.DisplayName;
this.lblDropboxEmailAddress.Text = full.Email;
Task<List<string>> task1 = Task.Run(ListFolders);
task1.Wait();
int i = task1.Result.Count;
Here are the functions that are another level of indirection and in the same class as the Form_Load method.
async Task<List<string>> ListFolders()
{
DropboxManager dm = new DropboxManager();
List<string> FolderList = await dm.ListFolders(dbx);
return FolderList;
}
async Task<FullAccount> GetCurrentAccount()
{
try
{
DropboxManager dm = new DropboxManager();
return await dm.GetCurrentAccount(dbx);
}
catch (Exception e)
{
throw e;
}
}
Here are the methods that are called in my DropboxManager class:
public async Task<List<string>> ListFolders(DropboxClient dbx)
{
try
{
List<string> FolderList = new List<string>();
var list = await dbx.Files.ListFolderAsync(string.Empty);
foreach (var item in list.Entries.Where(i => i.IsFolder))
{
FolderList.Add(item.Name);
}
return FolderList;
}
catch (Exception ex)
{
throw ex;
}
}
public static DropboxClient GetUserToken(string oauth2AccessToken)
{
try
{
DropboxClient dbx = new DropboxClient(oauth2AccessToken);
return dbx;
}
catch (Exception e)
{
throw e;
}
}
public async Task<FullAccount> GetCurrentAccount(DropboxClient dbx)
{
try
{
return await dbx.Users.GetCurrentAccountAsync();
}
catch (Exception e)
{
throw e;
}
}
So you can see that the only way I can pass parameters is by executing a Run() on an async function that calls another async function. I can't figure out how to pass parameters from that first level. Is that even possible?
Thanks.
