How can I pass the value of variable text to t except declare text at class
level?
..........
string text = "text";
Timer a = new Timer();
a.Interval = 10000;
a.Start();
a.Tick += new EventHandler(t) ;
..........
private void t(object sender, EventArgs eArgs)
{
} 4 2816
Elliot,
Well, the way you have it, you can't, as the EventHandler delegate only
takes two parameters.
However, you can make the value text available to t by setting a field
in the class that t is on, and then use it that way.
Or, you can use an anonymous method and change t like so:
private void t(object sender, EventArgs eArgs, string text)
{
}
string text = "text";
Timer a = new Timer();
a.Interval = 10000;
a.Start();
a.Tick += delegate(object sender, EventArgs e) { t(sender, e, text); };
If you are using C# 3.0, you can use a lambda expression as well to make
this code even smaller.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m
"Elliot" <el************ @hotmail.co.ukw rote in message
news:39******** *************** ***********@mic rosoft.com...
How can I pass the value of variable text to t except declare text at
class level?
..........
string text = "text";
Timer a = new Timer();
a.Interval = 10000;
a.Start();
a.Tick += new EventHandler(t) ;
..........
private void t(object sender, EventArgs eArgs)
{
}
Since you are *handling* an event, you can't use a custom
handler/event-args, but you might be able to do what you want via an
anonymous method:
a.Tick += delegate { SomeMethod(text );}
SomeMethod(stri ng value) {
//...
}
Marc
Works, thank you.
"Nicholas Paldino [.NET/C# MVP]" <mv*@spam.guard .caspershouse.c omwrote in
message news:uu******** ******@TK2MSFTN GP06.phx.gbl...
Elliot,
Well, the way you have it, you can't, as the EventHandler delegate only
takes two parameters.
However, you can make the value text available to t by setting a field
in the class that t is on, and then use it that way.
Or, you can use an anonymous method and change t like so:
private void t(object sender, EventArgs eArgs, string text)
{
}
string text = "text";
Timer a = new Timer();
a.Interval = 10000;
a.Start();
a.Tick += delegate(object sender, EventArgs e) { t(sender, e, text); };
If you are using C# 3.0, you can use a lambda expression as well to
make this code even smaller.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m
"Elliot" <el************ @hotmail.co.ukw rote in message
news:39******** *************** ***********@mic rosoft.com...
>How can I pass the value of variable text to t except declare text at class level?
.......... string text = "text"; Timer a = new Timer(); a.Interval = 10000; a.Start(); a.Tick += new EventHandler(t) ; ..........
private void t(object sender, EventArgs eArgs) { }
Thank you too.
"Marc Gravell" <ma**********@g mail.comwrote in message
news:uV******** ******@TK2MSFTN GP04.phx.gbl...
Since you are *handling* an event, you can't use a custom
handler/event-args, but you might be able to do what you want via an
anonymous method:
a.Tick += delegate { SomeMethod(text );}
SomeMethod(stri ng value) {
//...
}
Marc
This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: velthuijsen |
last post by:
The STL sort only accepts a function that is defined in the form of
bool Fname(<type>, <type>) in which <type> is the type of range to be
sorted.
I'm looking for a way to be able to sort the range on a different set
of types then the range.
I currently have worked out a way to do it (see code below) but it
seems fairly involved and I was wondering if there is a better way of
doing it?
|
by: Remco |
last post by:
Hello,
Serverside I'm generating a html page.
There are different controls for which I want to create an
eventhandler manually.
Like:
document.forms.TextBox1.onchange = EventHandler;
document.forms.Button1.onclick = EventHandler;
|
by: thesushant |
last post by:
hi,
whats the use of third argument to main( ), i.e. environmental
parameters.... if i am not wrong ? 1st 1 is argc 2nd is argv and what
bout the 3rd 1???????????
sushant
|
by: aplaxas |
last post by:
Hi!
"CDemo.Call" eventHandler is added to "button3.click"
Event when both button1 and button2 are clicked.
However, I want to add "cd.Call" only one time even though
I clicked both button1 and button2.
For Example,
1. Click button1
2. Click button2
|
by: Michael Conroy |
last post by:
Hi... Synposis...
Throws exception:
"Specified argument was out of the range of valid values."
Read on for the juicy tidbits.
MySimpleClassCol mscc=new MySimpleClassCol();
private void InitCombo()
{
| |
by: DotNetJunky |
last post by:
I have built a control that runs an on-line help system. Depending on the
category you selected via dropdownlist, it goes out and gets the child
subcategories, and if there are any, adds a new dropdownlist to the screen
for selection. This continues until there are no children, and then it
checks for a help article list based on that last selection and displays
actual articles for display.
Adding the controls and getting everything...
|
by: Stephen Ahn |
last post by:
Suppose I have object O with an event E that are
defined in an assembly M that I am referencing in
my code via reflection. M also defines object A which
is an argument to E.
At compile-time, how can I write a function that meets
the signature for event E, when the compiler
doesn't know about A ?
I can solve this problem using Delegate.CreateDelegate
|
by: zhang.yongpeng |
last post by:
Hello, I met some problems when trying to sort a list that has
shared_ptr in it. here is the non-compliable code.
test.cpp:
/********************* begin of code *************************/
#include <boost/shared_ptr.hpp>
#include <list>
class T{ // simplified this class to the simplest form
public:
T(int t):capacity(t){}
|
by: manjuks |
last post by:
Hi All,
int bind(int SOCKFD, struct sockaddr *MYADDR, int ADDRLEN);
In the above system call, the third argument is the length of socket address structure.
My question is why we need third argument? since we are passing second parameter as pointer to socket address structure, so it can calculate itself the length of the structure.
Thanks,
Manjunath
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
| |
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
| |
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| |