c# 4.0 - Async calls in c# -

-

when execute code developed call async method of linq2twitter, getting system.aggregate exception, code below:

static async task<list<mytwitterstatus>> getretweets(ulong tweetid, twittercontext twitterctx)         {     list<mytwitterstatus> retweets = new list<mytwitterstatus>();      var publictweets =         await         (from tweet in twitterctx.status          tweet.type == statustype.retweets &&                tweet.id == tweetid          select tweet)          .tolistasync();      if (publictweets != null)         publictweets.foreach(tweet =>         {             if (tweet != null && tweet.user != null)             {                 mytwitterstatus tempstatus = new mytwitterstatus();                 tempstatus.country = tweet.place.country;                 tempstatus.createdat = tweet.createdat;                 tempstatus.favoritecount = long.parse(tweet.favoritecount.tostring());                 tempstatus.id = tweet.id;                 tempstatus.istruncated = tweet.truncated;                 tempstatus.lang = tweet.lang;                 tempstatus.maxid = tweet.maxid;                 tempstatus.placefullname = tweet.place.fullname;                 tempstatus.retweetcount = tweet.retweetcount;                 tempstatus.screenname = tweet.screenname;                 tempstatus.text = tweet.text;                 tempstatus.userfriends = tweet.user.friendscount;                 tempstatus.usercreated = tweet.user.createdat;                 tempstatus.userfollowers = tweet.user.followerscount;                 tempstatus.userfavorities = tweet.user.favoritescount;                 tempstatus.userfriends = tweet.user.friendscount;                 tempstatus.userlocation = tweet.user.location;                 tempstatus.username = tweet.user.name;                 tempstatus.usertweetcount = tweet.user.statusescount;                 retweets.add(tempstatus);             }         });         return retweets;         }

the issue when called method

var authorizer = new singleuserauthorizer {     credentialstore = new inmemorycredentialstore     {         consumerkey = sm.default.consumer_key2.tostring(),         consumersecret = sm.default.consumer_secret2.tostring(),         oauthtoken = sm.default.access_token2.tostring(),         oauthtokensecret = sm.default.access_secret2.tostring()     } }; twittercontext twitterctx = new twittercontext(authorizer);  task<list<mytwitterstatus>> task = task<list<mytwitterstatus>>.factory.startnew(() => getretweets(ulong.parse(tweet.stringid), twitterctx).result); task.wait();                     list<mytwitterstatus> templist = task.result.tolist<mytwitterstatus>();  foreach (var ret in templist) {     un = file.removespecialcharacters(ret.username);     sn = file.removespecialcharacters(ret.screenname);      tweets.appendline(account + "," + getwe(ret.createdat) + "," + text + "," + un + "," + sn + "," + ret.createdat + "," +     file.removespecialcharacters(ret.userlocation) + ",,,1,," + ret.usertweetcount + "," +     ret.retweetcount + "," + ret.favoritecount + "," + ret.userfollowers);

i appreciate kind of assistance it, have no idea how solve it.

can add try/catch see inner exception is.

try {     //perform operation here } catch (aggregateexception aex) {     //dive inner exception }

Comments

Post a Comment

Popular posts from this blog

c++ - No viable overloaded operator for references a map -

-
i trying use map can make tag names reference number. when try , use it, in code error (6 in total every time reference map): src/main.cpp:25:45: error: no viable overloaded operator[] type 'std::map<std::string, std::string>' const char* idcs = node.child_value(tagmap[3]); this code: #include "pugi/pugixml.hpp" #include <iostream> #include <string> #include <map> int main() { pugi::xml_document doca, docb; std::map<std::string, pugi::xml_node> mapa, mapb; std::map<std::string, std::string> tagmap {{"1", "data"}, {"2", "entry"}, {"3", "id"}, {"4", "content"}}; if (!doca.load_file("a.xml") || !docb.load_file("b.xml")) { std::cout << "can't find input files"; return 1; } (auto& node: doca.child(tagmap[1]).children(tagmap[2])) { co
Read more

java - Custom OutputStreamAppender not run: LOGBACK: No context given for <MYAPPENDER> -

-
i wish write custom appender on basis of outputstreamappender . wrote following class package tests; import java.io.ioexception; import java.io.outputstream; import ch.qos.logback.core.outputstreamappender; public class myappender<e> extends outputstreamappender<e> { public myappender() { system.out.println("myappender created"); setoutputstream(new outputstream() { @override public void write(int b) throws ioexception { throw new unsupportedoperationexception(); } }); } } then wrote following runner: package tests; import org.slf4j.loggerfactory; import ch.qos.logback.classic.logger; public class runner { private static final logger log = (logger) loggerfactory.getlogger(runner.class); public static void main(string[] args) { //log.addappender(new myappender<iloggingevent>()); log.info("hello world"); } } finall
Read more

java - Cannot secure connection using TLS -

-
i'm trying establish secure socket connection between java client applet (built jdk 1.7.0_75-b13) , vc++ server application. as test vehicle, used vc++ client/server sample found in msdn forums, modified use schannel , able establish socket using cipher suite tls_rsa_with_aes_128_cbc_sha. works of tls 1.0/1.1/1.2. when try opening socket java applet same server application, connection rejected server reporting following: tls 1.0 acceptsecuritycontext failed: 0x80090327 tls 1.1 acceptsecuritycontext failed: 0x80090331 tls 1.2 acceptsecuritycontext failed: 0x80090331 this java code used create socket: debugprint("setting secure connection"); sslsocketfactory sslsocketfactory = (sslsocketfactory) sslsocketfactory.getdefault(); sslsocket sslsocket = (sslsocket) sslsocketfactory.createsocket("127.0.0.1", socketnumber); debugprint("starting handshake"); sslsocket.settcpnodelay(true); sslsocket.setsolinger(false, 0); sslsocket.s
Read more