Recent questions tagged Properties

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properties - Java 8: Observable List - Invalidation Listener nor Change Listener is called in case of property change

I build a custom property and add it to a observable list. But no listener is called if property content is ... list. What is wrong? Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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properties - how to check if a property value exists in array of objects in swift

I am trying to check if a specific item (value of a property) exists in a array of objects, but could not find ... not exists in the array") } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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properties - Doctrine 2: How to handle join tables with extra columns

How do I setup a join table with extra columns, or a many-to-many association with additional properties, in Doctrine 2? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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properties - Property getter/setter have no effect in Python 2

I'm a bit confused about properties in python. Consider the following code class A: @property def N(self): ... where exactly is the problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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properties - Liferay: How to configure Liferay Portal

How to configure or to override Liferay portal properties with portal.properties? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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503 views

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properties - Lazy instantiation in Objective-C/ iPhone development

Quick question... Well I understand that all properties start out as nil in Objective-C and that sending a ... ? Thanks to all who answer See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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properties - PropertyGrid Browsable not found for entity framework created property, how to find it?

Trying to remove or place items on a property grid by changing the Browsable attribute. But unless browsable is ... code for each Property. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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properties - C# add validation on a setter method

I have a a couple of variables that i define in C# by: public String firstName { get; set; } public String ... and in there validate the data? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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properties - Objective-C property that is readonly publicly, but has a private setter

I'd like to use the @property syntax to declare a synthesized property that is publicly readonly but has a ... only available within the class? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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properties - C# Get property value without creating instance?

Is it possible to get value without creating an instance ? I have this class: public class MyClass { ... without creating instance of MyClass. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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657 views

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properties - `def` vs `val` vs `lazy val` evaluation in Scala

Am I right understanding that def is evaluated every time it gets accessed lazy val is evaluated once it gets ... gets into the execution scope? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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458 views

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properties - C# property and ref parameter, why no sugar?

I just ran across this error message while working in C# A property or indexer may not be passed as ... implement the trivial workaround. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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848 views

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properties - c# foreach (property in object)... Is there a simple way of doing this?

I have a class containing several properties (all are strings if it makes any difference). I also have a ... getting into anything too complex? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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384 views

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properties - JavaScript object detection: dot syntax versus 'in' keyword

I have seen two ways of detecting whether a UA implements a specific JS property: if(object.property) and if ... at jsperf.com/object-detection See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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556 views

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properties - “Strange” C# property syntax

I just saw this in a c# project: public char this[int index] I consider myself new to C#; any one can help what it's meaning? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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441 views

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properties - Why won't anyone accept public fields in C#?

Seems like every C# static analyzer wants to complain when it sees a public field. But why? Surely there are ... 't a simple field suffice? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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586 views

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properties - 'property: 0' or 'property: 0px' in CSS?

I've seen this notation used a lot, and I was wondering, is there is any notable difference between these two ... one is better or correct? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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595 views

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properties - Determine if a JavaScript property has a getter or setter defined?

Is it possible, given an object and property name to determine if that property is defined using either a getter ... to work in WebKit/Firefox. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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