Consider the case when model validation fails. View will be redisplayed again with model sent with the request. However this line: new SelectList(ViewBag.Districts, “district_id”, “district_name”, Model.Districts) will have null as a first parameter, since ViewBag.Districts was not repopulated, causing the exception. So in order to avoid exception just set this property again: // If we … Read more
I decided to dig a bit deeper and found exactly what I was looking for after searching through the MVC source code. The convention for controller names is deep inside the roots of the MVC Framework, especifically in two classes ControllerDescriptor and ControllerTypeCache. In ControllerDescriptor it is given by the following attribute: public virtual string … Read more
There is an old saying, Smart data structures and dumb code works a lot better than the other way around. Everything you have described is about how one piece of data relates to another. That itself is your clue that the logic for those relationships, including validation should be in the model or database layer. … Read more
If your base url is like that= http://localhost/myapp/ where myapp is your context then myapp/a.html, myapp/b.html myapp/c.html will get mapped to the first 3 method in the following controller. But anything else will reach the last method which matches **. Please note that , if you put ** mapped method at the top of your … Read more
Another option is to create a base controller. Place the function in the base controller and then inherit from this. To achieve this in CodeIgniter, create a file called MY_Controller.php in the libraries folder of your application. class MY_Controller extends Controller { public function __construct() { parent::__construct(); } public function is_logged_in() { $user = $this->session->userdata(‘user_data’); … Read more
You can update service to return a hash of resources, not a single one: angular.module(‘myApp.services’, [‘ngResource’]). factory(“geoProvider”, function($resource) { return { states: $resource(‘../data/states.json’, {}, { query: { method: ‘GET’, params: {}, isArray: false } }), countries: $resource(‘../data/countries.json’, {}, { query: { method: ‘GET’, params: {}, isArray: false } }) }; }); You will be able … Read more
Solution One way to do this is to create a class and use its instance, this way you can not only access the object of the class within a controller, blade, or any other class as well. AppHelper file In you app folder create a folder named Helpers and within it create a file name … Read more
If you wants to refresh page: Controller: public ActionResult Index() { return View(); } public ViewResult Test() { ViewBag.Name = Request[“txtName”]; return View(); } Index.cshtml: @using (Html.BeginForm(“Test”, “Home”, FormMethod.Post )) { <input type=”submit” id=”btnSearch” class=”btn btn-warning” style=”height:35px;width:120px” value=”Search”/> <label>Name:</label><input type=”text” id=”txtName” name=”txtName” /> } Test.cshtml: @ViewBag.Name ============================================= If you don’t wants to refresh page: Controller: … Read more
The simplest way is to add the data to the request. Since this is a forward, the same request is passed around to different handlers within the server. As example, let’s start with a simple setup of two controllers, one forwarding to the other: @Controller public class TestController { @RequestMapping(value=”/test”) public String showTestPage() { return … Read more
Best way I found until now is: @RequestMapping(value = “/greeting”, method = POST, consumes = APPLICATION_JSON_VALUE, produces = APPLICATION_JSON_VALUE) @ResponseBody public String greetingJson(HttpEntity<String> httpEntity) { String json = httpEntity.getBody(); // json contains the plain json string Let me know if there are other alternatives.