Web用户控制和使用会话，请求和响应 [英] Web User Control and using session, request and response
问题描述
您好，
我正在忙着编写一个新的asp.net应用程序，我正在重用我的一些现有的asp函数和方法。用户控制。我需要访问
会话，在某些功能中请求和响应，我无法找到
如何做到这一点。这是我做的一个例子，我得到以下内容
不能从共享方法中引用类的实例成员或
共享成员没有明确的类实例的初始化程序
此行上的
client = Request.ServerVariables（" HTTP_USER_AGENT"）
公共共享功能GetIEVersion（）As Double
Dim IEVer，client，ver
client = Request.ServerVariables（" HTTP_USER_AGENT"）
如果InStr（1，客户端，MSIE，1）> 0然后
IEVer =拆分（客户端，" ;;"，-1,1）
ver =拆分（修剪（IEVer（1）），"" ;）（1）
否则
ver = -9999
结束如果
返回ver
结束功能
如果我能找到如何包含像经典ASP这样的文件，那么它也会为我提供
。
#include file =" inc\utils.asp"在asp =？在asp.net
问候，
乔治
Hi there,
I am busy writing a new asp.net application and I am reusing some of my
existing asp functions and methods in a user control. I need access to
session, request and response in some of the functions and I can''t find out
how to do it. Here is an example of what I do and I get the following
Cannot refer to an instance member of a class from within a shared method or
shared member initializer without an explicit instance of the class
on this line
client = Request.ServerVariables("HTTP_USER_AGENT")
Public Shared Function GetIEVersion() As Double
Dim IEVer, client, ver
client = Request.ServerVariables("HTTP_USER_AGENT")
If InStr(1, client, "MSIE", 1) > 0 Then
IEVer = Split(client, ";", -1, 1)
ver = Split(Trim(IEVer(1)), " ")(1)
Else
ver = -9999
End If
Return ver
End Function
if I can find out how to include files like in classic ASP it would also do
it for me.
#include file = "inc\utils.asp" in asp = ? in asp.net
Regards,
George
推荐答案
嗨乔治：
使用HttpContext.Current，它可以让你访问带有请求，响应和会话属性的curent
请求上下文。
< br $> b $ b -
Scott
http ：//www.OdeToCode.com/
On Thu，2004年9月30日11:14:06 +0200，George G.
< george.g @ - xx--buildsmart.co.za>写道：
Hi George:
Use HttpContext.Current, which will give you access to the curent
request context with Request, Response, and Session properties.
--
Scott
http://www.OdeToCode.com/
On Thu, 30 Sep 2004 11:14:06 +0200, "George G."
<george.g@--xx--buildsmart.co.za> wrote:
你好，
我正在忙着编写一个新的asp.net应用程序，我正在重用我现有的一些asp函数和用户控件中的方法。我需要访问
会话，请求和响应某些功能，我无法找到
如何做到这一点。以下是我所做的一个示例，我得到以下内容
不能从共享方法或
共享成员初始化程序中引用类的实例成员而没有类的显式实例
这一行
client = Request.ServerVariables（" HTTP_USER_AGENT"）
公共共享功能GetIEVersion（）As Double
Dim IEVer，client，ver
client = Request.ServerVariables（" HTTP_USER_AGENT"）
如果InStr（1，客户端，MSIE，1）> 0然后
IEVer =拆分（客户端，" ;;"，-1,1）
ver =拆分（修剪（IEVer（1）），""）（1）
其他
ver = -9999
结束如果
返回ver
结束功能
如果我能找到如何包含像经典ASP这样的文件它我也会这样做。
#include file =" inc\utils.asp"在asp =？在asp.net
问候，
George
Hi there,
I am busy writing a new asp.net application and I am reusing some of my
existing asp functions and methods in a user control. I need access to
session, request and response in some of the functions and I can''t find out
how to do it. Here is an example of what I do and I get the following
Cannot refer to an instance member of a class from within a shared method or
shared member initializer without an explicit instance of the class
on this line
client = Request.ServerVariables("HTTP_USER_AGENT")
Public Shared Function GetIEVersion() As Double
Dim IEVer, client, ver
client = Request.ServerVariables("HTTP_USER_AGENT")
If InStr(1, client, "MSIE", 1) > 0 Then
IEVer = Split(client, ";", -1, 1)
ver = Split(Trim(IEVer(1)), " ")(1)
Else
ver = -9999
End If
Return ver
End Function
if I can find out how to include files like in classic ASP it would also do
it for me.
#include file = "inc\utils.asp" in asp = ? in asp.net
Regards,
George
感谢您的回答。从用户控件访问页面似乎很简单，我应该更多地使用类浏览器。
但是，我还需要更多的帮助。
我尝试从用户控件访问该页面，这样做：
受保护的UC1为UC1 = DirectCast（Page，Parent_Page）
Parent_Page .Label1.Text =" Text here" ''错误在这里
" Label1"在Parent_Page中声明为Public。
这给了我错误对象引用未设置为
对象的实例。在运行时。
然后我尝试设置Label1作为公共共享，现在（它可以，但是）vbc
在编译时给出以下警告：
"警告BC42025：通过实例访问共享成员;
符合条件的表达式将不会被评估。
这里是否与错误和警告消息冲突？错误消息说
我没有使用对象的实例，但是警告消息说我使用
一个实例。
我不明白为什么我需要使用另一个
页面的用户控件实例（或声明类共享）如果用户控件
页面已经在页面中声明了，我从用户控件中引用了
页面。
我在这里想念的是什么？
Thanks for your answers. Accessing page from user controls seemed be
simple, I should use class browser more.
But, I still need more help.
I tried to access the page from a user control, doing it this way:
Protected UC1 As UC1 = DirectCast(Page, Parent_Page)
Parent_Page.Label1.Text = "Text here" '' error here
"Label1" is declared as Public in "Parent_Page".
This gives me error "Object reference not set to an instance of an
object." at the runtime.
Then I tried to set "Label1" as "Public Shared", now (it works, but) vbc
gives me following warning when compiling:
"warning BC42025: Access of shared member through an instance;
qualifying expression will not be evaluated."
Isn''t here conflict with error and warning messages? Error message says
that I don''t use instance of an object, but warning message says I use
an instance.
I don''t understand why I would need to use another instance of the
page′s user control (or declaring class shared) if user controls of the
page are already declared in the page, and I have a reference to the
page from a user control.
What I miss here?
对不起，我可能有点累了。
以前的帖子被认为是继续线程如何访问：a
来自用户控件的页面和另一个用户控件来自另一个用户控件？
Sorry, I maybe a little tired.
Previous post was meaned to be continue to the thread "How to access: a
page from a User control, and another User control from another one?"
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