custom-attributes Questions

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I want to write my enum with custom attributes, for example: public enum SomeEnum: long { [SomeAttribute<MyClass1>] Sms = 1, [SomeAttribute<MyClass2>] Email = 2 } but attributes ...
Plebeian asked 23/10, 2014 at 5:9

9

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Question based on MSDN example. Let's say we have some C# classes with HelpAttribute in standalone desktop application. Is it possible to enumerate all classes with such attribute? Does it make se...
Barnaul asked 3/3, 2009 at 16:43

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Let's say I have a class called Test with one property called Title with a custom attribute: public class Test { [DatabaseField("title")] public string Title { get; set; } } And an extension m...
Chiffon asked 24/2, 2010 at 21:36

4

I've been struggling to find examples of how to write a custom attribute to validate method parameters, i.e., turn this form: public void DoSomething(Client client) { if (client.HasAction("do_som...
Harpist asked 17/6, 2013 at 14:44

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I just want to put conditional Required Attribute which is work with WEB API Example public sealed class EmployeeModel { [Required] public int CategoryId{ get; set; } public string Email{ get;...
Tirol asked 17/12, 2013 at 18:52

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For example—say I want to add a helloWorld() method to Python's dict type. Can I do this? JavaScript has a prototype object that behaves this way. Maybe it's bad design and I should subclass...
Atheling asked 15/1, 2011 at 7:27

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I have the following custom attribute, which can be applied on properties: [AttributeUsage(AttributeTargets.Property, AllowMultiple = false)] public class IdentifierAttribute : Attribute { } For...
Twelfthtide asked 20/7, 2010 at 10:51

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I have an enum where each member has a custom attribute applied to it. How can I retrieve the value stored in each attribute? Right now I do this: var attributes = typeof ( EffectType ).GetCustom...
Koonce asked 23/2, 2011 at 22:3

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Consider the following scenario: A base attribute class BaseAttribute has an AttributeUsageAttribute specifying that it is not inheritable (Inherited = False). A derived attribute class DerivedAt...
Modern asked 19/2, 2013 at 10:39

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I recently discovered that a .NET attribute can only contain primitive types, strings, enums, objects, and single parameter arrays of these types as discussed here. I have the need to accept an ID...
Gustative asked 21/1, 2014 at 17:45

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How can I retrieve a Button custom attribute after the attribute value has been changed using javascript? Example: Asp file <asp:Button ID="Button1" runat="server" Text="Button1" /> <as...
Maharanee asked 26/8, 2014 at 13:55

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I've written my custom View and i want to update some other views after interacting with my custom view. Main Layout: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:androi...
Clementinaclementine asked 29/8, 2013 at 10:22

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I'd like to ensure that two interfaces are never found on the same class at compile-time, similar to how AttributeUsage checks custom Attributes at compile-time. e.g.: [InterfaceUsage(MutuallyExc...
Detritus asked 9/5, 2011 at 12:54

5

Writing custom code to create product detail page with wordpress database. I have displayed product title, desc, price, stock, etc and got stuck up with product attributes. In the database, _produ...
Slopwork asked 26/2, 2014 at 7:40

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I noticed today that some new properties had appeared in my intellisense on the System.Type object for my .NET 4.5 projects. Among these was one called CustomAttributes. I was intrigued by this si...
Hagiocracy asked 4/6, 2015 at 0:1

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React Typescript allow to add custom data-* attributes. But is it possible to add custom attributes like 'name' || 'test' act. ? <span name="I'm causing a type error" data-test="I'm Working"/&g...
Prescott asked 25/2, 2019 at 15:40

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I wrote a somewhat generic deserialization mechanism that allows me to construct objects from a binary file format used by a C++ application. To keep things clean and easy to change, I made a Fiel...
Claymore asked 29/4, 2011 at 8:56

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Is it possible to write an Attribute that can track methods to detect if those methods are never called? [Track] void MyMethod(){ } output: warning: method "MyMethod" in "MyClass" has no refer...
Semblance asked 13/2, 2017 at 13:49

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I have a custom Attribute called AuthoriseAttribute whose constructor looks like this: public AuthoriseAttribute(int userId) { .. blah } This is used with a method called GetUserDetails() like ...
Yep asked 3/5, 2012 at 16:20

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I have an async method that evaluates a field. Task<bool> MyMethod(object obj); I want to create a custom validation attribute that uses the above method. My problem is that the ValidationAt...
Ridenour asked 27/8, 2020 at 4:45

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Can anyone please explain to me a very basic example of a custom attribute with code?
Lathe asked 2/2, 2011 at 20:29

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I am trying to use MethodDevorator.Fody to enable Attribute based method interception. https://github.com/Fody/MethodDecorator/blob/master/readme.md#your-code I wanted to create a reusable compon...
Visionary asked 4/6, 2020 at 8:56

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I am trying to create a generic method that will read an attribute on a class and return that value at runtime. How do would I do this? Note: DomainName attribute is of class DomainNameAttribute....
Waneta asked 16/4, 2010 at 21:25

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Checking out the sample code from http://lukesampson.com/post/471548689/entering-and-exiting-https-with-asp-net-mvc written for ASP.NET MVC2, I noticed they can check if a custom attribute is appli...
Dyanne asked 25/8, 2010 at 19:2

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I want to get a custom attribute value from multiple select. Here is my HTML code: <select multiple name="tax[]" id="tax_classes" onChange="getSelectedOptions(this)&quot...
Priscillaprise asked 28/10, 2019 at 9:33

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