te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - SignalR invoke method: connection must be started before data can be sent - Stack Overflow

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    javascript - SignalR invoke method: connection must be started before data can be sent - Stack Overflow

    programmeradmin5浏览0评论

    There are lots of 'connection must be started before data can be sent' issues in here and GitHub, but I hardly find hub related problems.

    $(function () {
        // Declare a proxy to reference the hub. 
        var connection = $.hubConnection('/');
        var chat = connection.createHubProxy('MyHub');

        // Start the connection.
        $.connection.hub.start().done(function () {
            console.log('Connect! connection Id=' + $.connection.hub.id);

            $('#sendmessage').click(function () {
                chat.invoke('method1','0000').done(function () {
                    console.log ('Invocation of method1 succeeded');
                }).fail(function (error) {
                    console.log('Invocation of method1 failed. Error: ' + error);
                });
            });
        })
        .fail(function(){ console.log('Could not Connect!'); });
    });

    The above code gives to execute a method when user clicks the button. I can check the method works with my WPF .NET app.

    I can get Connection Id successfully, but when I click the button it says 'SignalR invoke method: connection must be started before data can be sent. Call .start() before .send()' error.

    What did I wrong?

    There are lots of 'connection must be started before data can be sent' issues in here and GitHub, but I hardly find hub related problems.

    $(function () {
        // Declare a proxy to reference the hub. 
        var connection = $.hubConnection('http://www.website/');
        var chat = connection.createHubProxy('MyHub');

        // Start the connection.
        $.connection.hub.start().done(function () {
            console.log('Connect! connection Id=' + $.connection.hub.id);

            $('#sendmessage').click(function () {
                chat.invoke('method1','0000').done(function () {
                    console.log ('Invocation of method1 succeeded');
                }).fail(function (error) {
                    console.log('Invocation of method1 failed. Error: ' + error);
                });
            });
        })
        .fail(function(){ console.log('Could not Connect!'); });
    });

    The above code gives to execute a method when user clicks the button. I can check the method works with my WPF .NET app.

    I can get Connection Id successfully, but when I click the button it says 'SignalR invoke method: connection must be started before data can be sent. Call .start() before .send()' error.

    What did I wrong?

    • javascript
    • signalr
    Share Improve this question asked Jul 3, 2013 at 10:15 YoungjaeYoungjae 25.1k19 gold badges117 silver badges203 bronze badges
    Add a ment  | 

    1 Answer 1

    Reset to default 10

    Read tutorial carefully and it works now.

     $(function () {
        // Declare a proxy to reference the hub. 
        var connection = $.hubConnection('http://www.website/');
        var chat = connection.createHubProxy('MyHub');

        connection.start().done(function() {
            console.log('Now connected, connection ID=' + connection.id); 
            // Wire up Send button to call sendmessage on the server.
            $('#sendmessage').click(function () {
                chat.invoke('method1', '0000');
                });
            })
            .fail(function(){ console.log('Could not connect'); });;
    });

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