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Questions tagged [object-initializers]

Object initializers let you assign values to any accessible fields or properties of an object at creation time without having to invoke a constructor followed by lines of assignment statements.

An example of object initializers is the Object and Collection Initializers (C# Programming Guide):

Object initializers let you assign values to any accessible fields or properties of an object at creation time without having to invoke a constructor followed by lines of assignment statements. The object initializer syntax enables you to specify arguments for a constructor or omit the arguments (and parentheses syntax).

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passing css class name to asp.mvc view helper

In ASP.NET MVC view helper, you can do something like <%= Html.ActionLink("click me", "DoSomething", null, new { someAttribute = "a value" } ) %> which will produce the following HTML click me My…
Adam
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unable to evaluate viewState against Null

This method I am using to fill the data source for a grid view, but for when getnew is false, it won't return any value , just returns a list with a single null value in it. private List GetAll_T(bool getNew) { if (getNew) …
joshua
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Initializing array of structs within an array of structs

Given the following code: struct BufferPair { ByteBuffer _a; ByteBuffer _b; bool _c; }; struct TestData { MyClass _myClass; BufferPair _data[]; }; I'm trying to initialize an array of TestData where I also initialize an array…
MarkP
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Using VB.NET object initializers in a factory pattern

I have written a base class from which I wish to derive several child classes (in this case Windows Form classes), and I'm using a Factory pattern in order to maintain a collection of the child instances, so that a form can only have one instance…
MCattle
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using object initializer generates CA 2000 warning

Following code generates a CA2000 warning: Myclass myclass = null; try { myclass = new Myclass { Name = "a name" }; } finally { if (myclass != null) { myclass.Dispose(); } } i found some topics with the same problem and as I…
rhe1980
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What to do with useless init?

This is currently what I have for my init, - (id)init { self = [super init]; if (self) { self.url = [[NSURL alloc] init]; self.blurb = [[NSString alloc] init]; self.author = [[NSString alloc] init]; } …
john
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Creation of an instance with `with` block causes a type issue

I am using Groovy to create a package that I use in ReadyApi. In a Groovy script test step, I do the following: class B { String value boolean isSomething } class A { String name B propB public A() { this.name =…
Aymen Turki
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Maximum call stack size exceeded - Object Initializer with reference to self

While playing around with a simple Javascript Object Initializer example, I could not find an explanation while the following code: const obj = { self: this }; console.log(obj); would lead an Error: Maximum call stack size…
tmarwen
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calling an object method from another method not working

Suppose I have the following coding scenario: export const test = () => { return ( var1, var2, var3 ) => { return Object.freeze({ getVarOne: () => var1, getVarTwo: () => var2, …
user1790300
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Set inner object's member as outer object using the object initialization syntax in C#

Context I have a List of type Question. Class Question, in turn, contains a List. Class Answer has a member called public Question Question { get; set; } which stores the question of which the answer is for. I'm using the collection…
Amal K
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Why is a collection initializer without `new` allowed inside an object initializer but not outside?

I noticed strange behaviour when initializing collection property. Consider: class X { public IList Ints { get; set; } } I can initialize Ints like that: var theObject = new X { Ints = { 12, 3, 4, 5, 6 } }; But I cannot do that: var x…
Pawel
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Object Initialization and "Named Constructor Idiom"

Ok. So I have a list of values, and I'd like to do something like the following: MyObjectValues .Select(currentItems=>new MyType() { Parameter1 = currentItems.Value1, Parameter2 = currentItems.Value2 }); So here's the problem. I need…
GWLlosa
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Type-hinted object initializer in parent constructor

Is it possible to have a type-hinted object initializer inside a constructor on a parent class? Ex: class Model { modelField: string; constructor(initializer: SomeSpecialType){ Object.assign(this, initializer); } } class User…
Ionel Lupu
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C# Object Initializers and ConstructorInfo

Can anyone point me towards a solution for the following? I am trying to replicate a property attribute that uses Object Initializers by using the CustomAttributeBuilder; ie. [Display(Order = 0, Name = "UserNameLabel", ResourceType =…
Sam
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C++ Constructors with multiple raw pointers

I do not know how to make constructors for an object with multiple raw pointers. I understand how to make it for one but do not understand multiple. I have tried to write a new constructor during initialization, which then specifies what is accessed…
Codingismybuisness
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