初始化静态只读方法 [英] Initializing static readonly methods
问题描述
你好，
我是c＃的新手。我有一些基本的编程疑惑。请帮助我
澄清这些疑惑。
我想初始化一个静态和只读字段，返回值
by静态方法。但是，当我调试时，该方法不是被调用的
。所以我无法弄清楚，该领域是否正确地进行了初始化。请解释一下这种行为
提前致谢
Hi Sunil，
你在什么时候看调试器？在您尝试创建类的实例或访问任何
静态成员或公共字段之前，静态字段将初始化为
。你有一个小例子吗？
看到这个问题？
马克
-
http://www.markdawson.org
" sunil"写道：
你好，
我是c＃的新手。我有一些基本的编程疑惑。请帮助我
澄清这些疑惑。
我想初始化一个静态和只读字段，返回值
by静态方法。但是，当我调试时，该方法不是被调用的
。所以我无法弄清楚，该领域是否正确地进行了初始化。请解释一下这种行为
提前致谢
静态只读字段只能由静态构造函数初始化。
你不能通过另一个静态函数初始化。可能这就是为什么你在调试时遇到问题。
相反，你可以尝试使用普通的静态变量并创建一个
readonly属性为exibit readonly属性。
-Rahul
sunil写道：
您好，
我是c＃的新手。我有一些基本的编程疑惑。请帮助我
澄清这些疑惑。
我想初始化一个静态和只读字段，返回值
by静态方法。但是，当我调试时，该方法不是被调用的
。所以我无法弄清楚，该领域是否正确地进行了初始化。请解释一下这种行为
先谢谢
Mark R. Dawson写道：
您好Sunil，
您在调试器中查看的是什么时候？在您尝试创建类的实例或访问任何
静态成员或公共字段之前，静态字段将初始化为
。你有一个小例子吗？
看到这个问题？
马克
-
http://www.markdawson.org
< blockquote class =post_quotes>
Hello Mark
感谢您的快速回复。我正在考虑当包含静态只读字段的类的新
对象实例化为
时。举一个代码示例：
class A
{
private static char [] temp = myFunc（）;
private const i = 9;
private static char [] myFunc（）
{
}
内部A
{
}
}
myFunc（）返回char []最后。
我试图创建一个A类对象。当控件转到构造函数
时，myFunc（）没有被调用。
Hello,
I am new to c# . I have some basic programming doubts. Please help me
in clarifying these doubts.
I want to initialize a static and readonly field with a value returned
by a static method. How ever, when I am debugging, that method is not
being called. So I am not able to figure out, whether the field is
getting initialized properly or not. Please explain this behavior
Thanks in advance
Hi Sunil,
at what point are you looking in the debugger? The static field will be
initialized before you try to create an instance of the class or access any
static members or public fields. Do you have a small example where you are
seeing this problem?
Mark
--
http://www.markdawson.org
"sunil" wrote:
Hello,
I am new to c# . I have some basic programming doubts. Please help me
in clarifying these doubts.
I want to initialize a static and readonly field with a value returned
by a static method. How ever, when I am debugging, that method is not
being called. So I am not able to figure out, whether the field is
getting initialized properly or not. Please explain this behavior
Thanks in advance
Static Readonly fields can be only intialized by a static constructor.
You cannot intialize by another static function. Probably thats why you
are having problems in debugging.
Instead you can try using a normal static variable and create a
readonly property for it to exibit the readonly attribute.
-Rahul
sunil wrote:Hello,
I am new to c# . I have some basic programming doubts. Please help me
in clarifying these doubts.
I want to initialize a static and readonly field with a value returned
by a static method. How ever, when I am debugging, that method is not
being called. So I am not able to figure out, whether the field is
getting initialized properly or not. Please explain this behavior
Thanks in advance
Mark R. Dawson wrote:Hi Sunil,
at what point are you looking in the debugger? The static field will be
initialized before you try to create an instance of the class or access any
static members or public fields. Do you have a small example where you are
seeing this problem?
Mark
--
http://www.markdawson.org
Hello Mark
Thanks for the quick response. I was looking at the point when a new
object of the class containing the static readonly field is being
instantiated. To give a code example:
class A
{
private static char[] temp = myFunc();
private const i = 9;
private static char[] myFunc()
{
}
internal A
{
}
}
myFunc() returns the char[] at the end.
I was trying to create an object of class A. When the control goes to
the constructor, myFunc() is not being called.
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