await DropboxOAuth2Helper.ProcessCodeFlowAsync() doesn't completed and breaks between the loop.

[JayPatel1992]

I want to get access token using OAuth2Response response = await DropboxOAuth2Helper.ProcessCodeFlowAsync(code, AppKey, AppSecret, uriBuilder.Uri.AbsoluteUri); in C#.Net (not MVC). 
Created a method:

public async Task ProcessDropboxCallback(string code)
        {
            var AppKey = "";
            var AppSecret = "";
            var uriBuilder = new UriBuilder(Request.Url);
            uriBuilder.Query = Request.QueryString.ToString();
            uriBuilder.Fragment = null;
            uriBuilder.Query = null;
            OAuth2Response response = await DropboxOAuth2Helper.ProcessCodeFlowAsync(code, AppKey, AppSecret, uriBuilder.Uri.AbsoluteUri);
            string DropboxToken = response.AccessToken;
            Session["DropboxAccessToken"] = DropboxToken;
        }

 and calling above method in page_load as:

ProcessDropboxCallback(code);

What is happening here is when the compiler reaches to await method, the loop breaks.

It doesn't goes to string Dropbox, so not able to set the token in session. Also it doesn't continues to page_load, loop breaks and the page loads without continuing code after ProcessDropboxCallback(code). 

Stuck in this, need help.

Thanks.

[Greg-DB · Accepted solution]

It sounds like the issue is that this is an async method, but you're not waiting for the result. I.e., you probably want to await your method call like this:

await ProcessDropboxCallback(code);

[JayPatel1992]

Yes, that's true.

But for that I need to make Page_load method "async". Is that a good thing ? Because I am not aware with what will happen if I add async to Page_Load.

[Greg-DB]

That's more of a general C#/async programming design question, so I'm afraid I can't offer insight on that.

[JayPatel1992]

No problem. I tried that and now it is working good.

Thank you so much for help.