field

问题 1.How can i make a text field non-editable (readable=false) while editing record My Form View Code <div class="field"> <%= f.label t :profile_name %><br /> <%= f.text_field :profile_name %> </div> 2.How can i make a field visible while editing a record. I have a field in the database table that i just want to display to fill in while editing the record however while create a new record that field not be visible. RESOLVED: Never Mind Guys i got the solution, 1. <div class="field"> <%= f.label

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Getting attributes of Enum’s value This is my class: [AttributeUsage(AttributeTargets.Field)] public sealed class LabelAttribute : Attribute { public LabelAttribute(String labelName) { Name = labelName; } public String Name { get; set; } } and I want to get the fields of the attributes: public enum ECategory { [Label("Safe")] Safe, [Label("LetterDepositBox")] LetterDepositBox, [Label("SavingsBookBox")]

问题 So I have a class that contains a String-field: public class A { private String type = ... public String getType(){ return this.type; } public void setType(String type){ this.type = type; } } I also have a list of all possible types, there are twelve and possibly more in the future. Now I want to write a method that gets an object of class A and calls a specific method depending on which "type" is in the class. Is there a smarter solution than writing 12 (or more) if-statements? Normally I

问题 I'm trying to parse in android studio a JSON, that containts this : "stops": [ { "num": 1, "time": "2016-04-27T06:15:00.000Z", "title":"Flight to London", "desc":"Barcelona BCN-London-Gatwick LGW", "type":"0", "subtype":0 }, { "num": 2, "time": "2016-04-27T10:35:00.000Z", "title":"Gatwick express", "desc":"From Airport to London", "type":"0", "subtype":1 }, { "num": 3, "time": "2016-04-27T12:15:00.000Z", "title":"Pub the black horse", "desc":"From Airport to London", "type":1, "subtype":1,

问题 I am using an imported class with has constant field values set using: public static final int BLUE = 1; public static final int GREEN = 2; etc. Is there any way of getting a string representation of the constant field value from the int value? i.e. given the value 2 I want to get a string of GREEN. P.S. This isn't my class so I can't use ENUMs 回答1: If you can change the class which contains these constants, it would be better to make it an enum with a value() method. Otherwise, I would

问题 I would like to know how to set the default value of a form Combobox field as the value in the database in Symfony2. The explanation is as below: This is the code of the entity I am dealing with: <?php namespace Ikproj\HomeBundle\Entity; use Doctrine\ORM\Mapping as ORM; /** * User * * @ORM\Table(name="user") * @ORM\Entity(repositoryClass="Ikproj\HomeBundle\Entity\UserRepository") */ class User { /** * @var integer * * @ORM\Column(name="id_user", type="integer") * @ORM\Id * @ORM\GeneratedValue

问题 I have a vector 3D class class Vector3D{ public: float x; float y; float z; //some functions, e.g. operator+ - * / //some 3D-specific function }; and a vector N-D class. template<int constSize> class VecFloatFix{ float database[constSize]; //some functions, e.g. operator+ - * / }; I noticed that there is code-duplication between two classes, so I think I should make Vector3D derived from VecFloatFix<3> :- class Vector3D : public VecFloatFix<3>{ //some 3D-specific function }; Everything seems

问题 I am using a form field to capture stats of a particular situation. I need the value of a hidden field to change based on the input of two text fields. I will describe the function in plain English. Help translating this to a functioning jQuery script would be greatly appreciated. Hidden field equals 'yes' where the value of field_1 equals 4 && field_2 equals 2 or Hidden field equals 'yes' where the value of field_1 equals 3 && field_2 equals 1 or Hidden field equals 'yes' where the value of

问题 Can I change the field of a class at runtime in c#? for example, if i have the class: public class ExampleClass{ public string Name; } can I Change it at runtime, using reflection or other techniques, to change the Name to Name1? public class ExampleClass{ public string Name1; } 回答1: No, you cannot change the actual members of a type at runtime Options: create a new type on the fly, that looks a lot like ExampleClass , but has different members - and presumably some mapping code between them

问题 Newbie to Acumatica here. I've performed a small amount of customization to our system, and am now diving into adding custom data fields. My goal is to synchronize hardware shipment information from Acumatica into our legacy (outdated and proprietary) hardware management system, as we will need to continue using this system for the time being for warranty calculations. I plan to eventually build this into Acumatica. My current issue is that I need a method of associating Customer Locations to