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How to get button name? (转载)

How to get button name? (转载)# DotNet - 窗口里的风景

i*p2007-05-31 07:05

1 楼

【以下文字转载自 BuildingWeb 讨论区】
发信人: isup (No), 信区: BuildingWeb
标题: How to get button name?
发信站: BBS 未名空间站 (Thu May 31 23:09:24 2007)
There are several buttons in one page. It always calls the fuction no matter
clicking any button. Inside this function, how can we know which button is
clicked? In other word, how can we get value "b1" or "b2"?
The buttons in the HTML are defined like these.

g*y2007-05-31 07:05

2 楼

event.srcElement.id

y*o2007-05-31 07:05

3 楼

Maybe he wants this on the server side.
I think he can have a method that does the real work, and then call this met
hod in Button1_click, Button2_click, Button3_click, Button4_click. This is n
ot exactly what he wants, but it is straightforward and does not increase th
at many lines of code.
protected void doTheNastyWork()
{
// do something
}
protected void Button1_click(object sender, EventArgs e)
{
doTheNastyWork();
}
protected void Button2_click(object sender, EventArgs e)
{
doTheN

l*s2007-05-31 07:05

4 楼

why bother? Just get it from sender/eventargs

met
n
th

【在 y********o 的大作中提到】

: Maybe he wants this on the server side.
: I think he can have a method that does the real work, and then call this met
: hod in Button1_click, Button2_click, Button3_click, Button4_click. This is n
: ot exactly what he wants, but it is straightforward and does not increase th
: at many lines of code.
: protected void doTheNastyWork()
: {
: // do something
: }
: protected void Button1_click(object sender, EventArgs e)

g*y2007-05-31 07:05

5 楼

if the story is on server side, sender object has everything he needs. also
one function will work when you register the func with all three buttons.

y*o2007-05-31 07:05

6 楼

That's wonderful.
Understood that one function works if he registers it with the buttons. I t
hought he wanted to know which button was clicked, which of course, as you g
uys have pointed out, can be obtained from the event arguments.

also

【在 g***y 的大作中提到】

: if the story is on server side, sender object has everything he needs. also
: one function will work when you register the func with all three buttons.