/// <summary>
/// This method adds a comment to a post that was already published to a user's Wall.
/// </summary>
/// <example>
/// <code>
/// private static void RunDemoAsync()
/// {
/// Api api = new Api(new FBMLCanvasSession(Constants.WebApplicationKey, Constants.WebSecret));
/// api.Stream.AddCommentAsync(Constants.PostId1, "adding a comment (async)", AsyncDemoCompleted, null);
/// }
///
/// private static void AsyncDemoCompleted(string result, Object state, FacebookException e)
/// {
/// var actual = result;
/// }
/// </code>
/// </example>
/// <param name="postId">The ID for the post to which you're adding the comment.</param>
/// <param name="comment">The text of the comment. This is a plain text parameter only; you cannot format the comment with HTML or FBML.</param>
/// <param name="callback">The AsyncCallback delegate</param>
/// <param name="state">An object containing state information for this asynchronous request</param>
/// <returns>This call returns a comment_id if the comment was added successfully, or an error code if the call was unsuccessful.</returns>
public void AddCommentAsync(string postId, string comment, AddCommentCallback callback, Object state)
{
AddCommentAsync(0, postId, comment, callback, state);
}
/// <summary>
/// This method adds a comment to a post that was already published to a user's Wall.
/// </summary>
/// <example>
/// <code>
/// private static void RunDemoAsync()
/// {
/// Api api = new Api(new FBMLCanvasSession(Constants.WebApplicationKey, Constants.WebSecret));
/// api.Stream.AddCommentAsync(Constants.UserId, Constants.PostId1, "adding a comment (async)", AsyncDemoCompleted, null);
/// }
///
/// private static void AsyncDemoCompleted(string result, Object state, FacebookException e)
/// {
/// var actual = result;
/// }
/// </code>
/// </example>
/// <param name="uid">The user ID of the user adding the comment. If this parameter is not specified, then it defaults to the session user. Note: This parameter applies only to Web applications. Facebook ignores this parameter if it is passed by a desktop application.</param>
/// <param name="postId">The ID for the post to which you're adding the comment.</param>
/// <param name="comment">The text of the comment. This is a plain text parameter only; you cannot format the comment with HTML or FBML.</param>
/// <param name="callback">The AsyncCallback delegate</param>
/// <param name="state">An object containing state information for this asynchronous request</param>
/// <returns>This call returns a comment_id if the comment was added successfully, or an error code if the call was unsuccessful.</returns>
public void AddCommentAsync(long uid, string postId, string comment, AddCommentCallback callback, Object state)
{
AddComment(uid, postId, comment, true, callback, state);
}
private string AddComment(long uid, string post_id, string comment, bool isAsync, AddCommentCallback callback, Object state)
{
var parameterList = new Dictionary<string, string> { { "method", "facebook.stream.addComment" } };
Utilities.AddOptionalParameter(parameterList, "uid", uid);
Utilities.AddOptionalParameter(parameterList, "post_id", post_id);
Utilities.AddOptionalParameter(parameterList, "comment", comment);
if (isAsync)
{
SendRequestAsync<stream_addComment_response, string>(parameterList, uid <= 0, new FacebookCallCompleted<string>(callback), state);
return null;
}
var response = SendRequest<stream_addComment_response>(parameterList, uid <= 0);
return response == null ? null : response.TypedValue;
}
