options

问题 I am trying to send a CORS request for a JSON payload. I control both the server and the client. I'm following along here: https://developer.mozilla.org/en-US/docs/HTTP/Access_control_CORS?redirectlocale=en-US&redirectslug=HTTP_access_control The server has a custom header that must be sent along with every request. This custom header therefore makes the request 'not simple' and thus the request must be preflighted with an OPTIONS request. I can see jquery making the OPTIONS request, but it

问题 I've already asked a similar question, here: Linking to modules in external directory Compaq Visual Fortran command prompt And I thought that the first answer was correct (that is, in the manual they say you can simply specify the path name before the module), but after deleting the temporary files in my library folder, this approach seemed to stop working. Trying with the /include[:path] approach, here is my .bat file: df /include:..\FORTRAN_LIB\ __constants myIO griddata_mod myfdgen myDiff

问题 I'm using jqgrid's form editing feature. Can I programmatically set the readonly attribute of the editoptions options in the jqgrid ? I need to determine if as specific field would be readonly or not, depends on one of the current row cell value. Thanks 回答1: You can set readonly attribute inside of beforeShowForm on the field (see here) or alternatively you can set/remove readonly: 'readonly' property (see here) of the editoptions for the column inside of beforeInitData which will be called

问题 I have a select element that should be filled with some options that I need to retrieve from an API call, then set the first one as selected. But Angular creates an empty option at first position and I don't know how to delete it. Here's my code: HTML <select class="form-control" ng-model="selectedPositionFamily"> <option ng-repeat="pf in positionFamilies" ng-value="pf.uuid">{{pf.name}}</option> </select> Controller function Controller($scope, PositionFamilyService) { $scope.positionFamilies

问题 I'm to to Javascript and I'm looking to make a form. I found some code that I edited but it doesn't work. What I'm trying to make is a form with 2 select dropdowns. When the visitor chooses one service from the first dropdown, then the 2nd dropdown will be automatically updated with the names of the staff of each service. I have uploded the code to jsFiddle. The url is http://jsfiddle.net/mrtxR/ . I thought it would be really simple but couldn't find any tutorial and guide on this. // The

问题 Hello I am trying to get the options from a html select element. The logic I am using is working in firefox, but it isn't working in IE. It gives me the length of the options array or the number of options but it isn't giving me the values of options. How do I troubleshoot this issue?? var SelectId= 'select_1'; //id of the html select element options = document.getElementById(SelectId).options; alert(options.length); for(var o=0;o< options.length;o++) {alert(options[o].value);} 回答1: The

问题 Is there a way to set the compiler warnings to be interpreted as an error in the Arduino IDE? Or any generic way to set gcc compiler options? I have looked at the ~/.arduino/preferences.txt but found nothing that indicates fine tuned control. I also looked if I could set gcc options via environment variables, but did not find anything. I don't want to have verbose compiler output (which you can specify using the IDE) that is way too much distracting non-essential information, I don't want to

问题 I implemented CORS on my Django backend by installing django-cors-headers and following the steps mentioned in- https://github.com/OttoYiu/django-cors-headers . Essentially, I performed the following steps- pip install django-cors-headers INSTALLED_APPS = ( ... 'corsheaders', ... ) MIDDLEWARE = [ 'corsheaders.middleware.CorsMiddleware', 'django.middleware.common.CommonMiddleware', ... ] CORS_ORIGIN_WHITELIST = ( 'localhost:8000', #LB '10.254.138.226:443' ) I still can not make it work when I

问题 So I have a simple page (html) where using jquery I load 's into a select using a php file. The code is as follows: The HTML: <div data-role="page" id="pg_invoicedtl"> <header data-role="header" data-theme="b"> <a href="javascript:history.go(0)" data-icon="refresh" class="ui-btn-right" data-theme="e">Refresh</a> <h1>MyApp</h1> </header> <div align="center" data-role="content"> <ul data-role="listview" data-theme="c" data-divider-theme="e" data-count-theme="b" data-inset="true"> <li data-role=

问题 I'm currently making a function that returns an object. But If i find something invalid in the input I want to return something to indicate that problem. I just can not wrap my head around on working this out.. What is the correct way to handle errors here? Using Options? But returning None does not specify any specific problems. Am i getting something wrong?:) case class myClass(value: Int) def myFunction(input: Int) : myClass { //return myClass if succeded //else return some error - what do