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i've seen several other posts converting qstring std::string, , should simple. somehow i'm getting error. my code compiled vs project using cmake (i'm using vs express), there's no issue qt libraries, , gui wrote works besides part. i have qcombobox cb holds names objects, , qlineedit lineedit allows me specify name of object looking for. should run function tested , working when press go button, input qcombobox , lineedit arguments. here's code when go button clicked: void gui::on_go_clicked(){ std::string str(cb->currenttext().tostdstring()); //std::cout << str << "\n"; //qstring qstr = lineedit->text(); //std::cout<<lineedit->text().tostdstring(); updatedb(str, lineedit->text().tostdstring()); } the first line, creating str , works fine. i.e. there's no problem library functions or tostdstring() . when executes function, program breaks, , it's not becuase of function, it's b...

i'm trying find things inside double quotes , replace link using it. have on 500 lines of questions, don't want hand. original php doc snippet: $q2 = array ("what mars earth?", "what mars's position relative earth?"); $q3 = array ("what mars's surface like?", "show me view of surface of mars.", "show me picture of surface of mars."); formatting want: $q2 = array ("<a href="answer.php?query=what+does+mars+look+like+from+earth%3f">what mars earth?</a>", <a href="answer.php?query=what+is+mars's+position+relative+to+earth%3f">"what mars's position relative earth?"); i tried using regex, without previous experience it, unsuccessful. using regexr ( my example ) came find of: "[a-za-z0-9\s.\?']*" , replace of: < href=answer.php?query=$&>$&" this gave results like $q2 = array (<a href=answer.php?query="wh...

i handling changes in ravendb database code: _documentstore.changes( "databasename" ).foralldocuments() .subscribe( change => { using ( var session = _documentstore.opensession( "databasename" ) ) { var obj = session.load<object>( change.id ); //deal changed object } } ); but reason after period of inactivity (i have not been able measure how long precisely, 15-20 minutes), stops sending updates. don't receive exception, after restarting application, runs fine. there sort of time out need set? or there else might cause this? it bug in ravendb fixed while ago. build running?

environment: ms sql server, ef, wcf-ria-service, sliverlight try define event async call complete event like: public event eventhandler<int> mysavecomplete; the event call sp in db , return id value(int). but got error message when try compile code: the type 'int' cannot used type parameter 'teventargs' in generic type or method 'system.eventhandler'. there no boxing conversion 'int' 'system.eventargs' how resolve problem? eventhandler<t> requires generic argument of type eventargs (i.e. 1 inherited it). so, should create own class: public class mysavecompleteeventargs : eventargs { public mysavecompleteeventargs(int id) { id = id; } public int id { get; private set; } } and use eventhandler<t> argument: public event eventhandler<mysavecompleteeventargs> mysavecomplete; event raising: protected void onmysavecomplete(int id) { if (mysavecomplete == n...

i followed tutorial on internet on drag , drop, using js function: function draguser(user, event) { event.datatransfer.setdata('user', user.id); } function dropuser(target, event) { var user = event.datatransfer.getdata('user'); target.appendchild(document.getelementbyid(user)); } and div/id/elements modified this: <div id="unassigned" ondrop="dropuser(this, event)" ondragenter="return false" ondragover="return false"> names: <a draggable="true" class="user" id="banana" ondragstart="draguser(this, event)">banana</a> <a draggable="true" class="user" id="newyork" ondragstart="draguser(this, event)">new york</a> <a draggable="true" class="user" id="london" ondragstart="draguser(this, event)">london</a> <a draggable="true...

i have drop down in values concatenated 2 columns of table, use value of drop down parameter stored procedure, possible? how that? this code create procedure [dbo].[reassign] @recordumber int @employeename begin update qr set qr.qamemberid = @qamemberid roster qr inner join teammaster s tm on qr.qamemberid = tm.qamemberid qr.recordnumber = @recordumber , qr.firstname, qr.lastname = @employeename end and qr.firstname , qr.lastname = @employeename know last piece of code wrong... how can right way? thank you... do not concatenate values in code, rather use parameter firstname , parameter lastname , this: create procedure [dbo].[reassign] @recordumber int, @firstname, @lastname begin update qr set qr.qamemberid = @qamemberid roster qr inner join teammaster s tm on qr.qamemberid = tm.qamemberid qr.recordnumber = @recordumber , qr.firstname = @firstname, qr.lastname = @lastname en...

mysql> select * on_connected; +----+-----------+-------------+---------------------------+---------------------+ | id | extension | destination | call_id | created_at | +----+-----------+-------------+---------------------------+---------------------+ | 11 | 1111111 | 01155555551 | 521243ad953e-965inwuz1gku | 2013-08-19 17:11:53 | +----+-----------+-------------+---------------------------+---------------------+ mysql> select * on_disconnected; +----+-----------+-------------+---------------------------+---------------------+ | id | extension | destination | call_id | created_at | +----+-----------+-------------+---------------------------+---------------------+ | 1 | 1111111 | 01155555551 | 521243ad953e-965inwuz1gku | 2013-08-19 17:11:57 | +----+-----------+-------------+---------------------------+---------------------+ 1 row in set (0.00 sec) there time difference of 4sec between two. calculate difference using ...