this-keyword | 易学教程

When NOT TO USE 'this' keyword?

阅读更多关于 When NOT TO USE 'this' keyword?

问题 Sorry for asking it again, there are already some questions about this keyword. But all of them tell the purpose of 'this'. When do you use this keyword C# when to use this keyword Use of “this” keyword in formal parameters for static methods in C# Proper usage of “this.” keyword in C#? My question is when not to use 'this' keyword . OR Is it all right to use this keyword always in situation like the code class RssReader { private XmlTextReader _rssReader; private XmlDocument _rssDoc; private

C# Properties and this-keyword

阅读更多关于 C# Properties and this-keyword

问题 When should I use the this -keyword for properties in code? public class MyClass { public string MyString { get; private set; } public void MyMethod() { OtherClass.DoStuff(MyString); // Or this.MyString? } } I know that if the type and name of a property is the same you have to use this. to make it work. public string Emailer Emailer { get { return _emailer; } } What are the guidelines for using this. on Properties and even Methods in a class? I know it makes no difference in the compiled

Cross-browser onload event in a static script tag

阅读更多关于 Cross-browser onload event in a static script tag

问题 Is there a cross-browser way to associate an onload event to a static script tag, in a html document? The following will not work in IE 7 and IE 8: <script onload="DoThat" type="text/javascript" src="..."></script> Some background I have found a way to accomplish this with a dynamic script tag and if statements. It is for example explained in this MSDN article. My issue is that I need to locate the current script tag, because I am building widgets that insert DOM elements in-place. In the

Difference between accessing static instance variables using the keyword this and Class name

阅读更多关于 Difference between accessing static instance variables using the keyword this and Class name

问题 I have got the following java class. When I am calling the login method in my constructor, I access the static instance variable username using the class name, and the static instance variable password using the keyword this . My question is what is the difference between the two approaches? Which one should be used in what situation? public class MyClass { private Main main; private static String username = "mylogindetails"; private static String password = "mypassword"; public MyClass(){

Let Resharper force this keyword on fields

阅读更多关于 Let Resharper force this keyword on fields

问题 Does anyone know if it is possible to have resharper force the use of the this keyword when it can be used? For fields and such... Resharper is capable of showing where it can be removed, but our coding standard tells us to use the this keyword. 回答1: In ReSharper Options, under Code Editing -> C# -> Code Style there is an option for Use "this." qualifier for that you can set for fields, properties, events, and methods. 回答2: Checkout the StyleCop for Resharper plugin (part of the StyleCop

Let Resharper force this keyword on fields

阅读更多关于 Let Resharper force this keyword on fields

Does anyone know if it is possible to have resharper force the use of the this keyword when it can be used? For fields and such... Resharper is capable of showing where it can be removed, but our coding standard tells us to use the this keyword. In ReSharper Options, under Code Editing -> C# -> Code Style there is an option for Use "this." qualifier for that you can set for fields, properties, events, and methods. Checkout the StyleCop for Resharper plugin (part of the StyleCop project ). You can then set the "default" severity for StyleCop to Error (or just this particular rule) and it will

How is the 'this' variable in Java actually set to the current object?

阅读更多关于 How is the 'this' variable in Java actually set to the current object?

Consider: class TestParent{ public int i = 100; public void printName(){ System.err.println(this); //{TestChild@428} according to the Debugger. System.err.println(this.i); //this.i is 100. } } class TestChild extends TestParent{ public int i = 200; } public class ThisTest { public static void main(String[] args) { new TestChild().printName(); } } I know that similar questions have been asked, but I couldn't get a firm understanding of the 'this' variable in Java. Let me try to explain how I understand the result of the above image. Since it's a new TestChild() object that's calling the

When NOT TO USE 'this' keyword?

阅读更多关于 When NOT TO USE 'this' keyword?

Sorry for asking it again, there are already some questions about this keyword. But all of them tell the purpose of 'this'. When do you use this keyword C# when to use this keyword Use of “this” keyword in formal parameters for static methods in C# Proper usage of “this.” keyword in C#? My question is when not to use 'this' keyword . OR Is it all right to use this keyword always in situation like the code class RssReader { private XmlTextReader _rssReader; private XmlDocument _rssDoc; private XmlNodeList _xn; protected XmlNodeList Item { get { return _xn; } } public int Count { get { return