Re: Checkbox's question.
Here is modified code for CheckBoxTag. Maybe it could be usefull to other developpers
as
it enables unchecking checkboxes without having to write some reset() method for
ActionForms.
I worked on Struts 1.0 version of CheckBoxTag, what i modified :
- added indexed tags support
- added generation of hidden field
Here is my new version for doStartTag() method :
public int doStartTag() throws JspException {
// Create an appropriate hidden element to put it before the input element
// with value false. This will force to uncheck in the ActionForm if the checkbox
// is not checked
StringBuffer resultsHidden = new StringBuffer(input type=\hidden\);
// Create an appropriate input element based on our parameters
StringBuffer results = new StringBuffer(input type=\checkbox\);
resultsHidden.append( name=\);
results.append( name=\);
// Indexed properties handling
if (indexed != null) {
IterateTag iterateTag =
(IterateTag) findAncestorWithClass(this, IterateTag.class);
if (iterateTag == null) {
// this tag should only be nested in iteratetag, if it's not, throw
exception
JspException e =
new JspException(messages.getMessage(indexed.noEnclosingIterate));
RequestUtils.saveException(pageContext, e);
throw e;
}
if (name != null) {
results.append(name);
resultsHidden.append(name);
}
results.append([);
results.append(iterateTag.getIndex());
results.append(]);
resultsHidden.append([);
resultsHidden.append(iterateTag.getIndex());
resultsHidden.append(]);
if (name != null) {
results.append(.);
resultsHidden.append(.);
}
}
// End of Indexed properties handling
results.append(this.property);
results.append(\);
resultsHidden.append(this.property);
resultsHidden.append(\ value=\false\ /);
if (accesskey != null) {
results.append( accesskey=\);
results.append(accesskey);
results.append(\);
}
if (tabindex != null) {
results.append( tabindex=\);
results.append(tabindex);
results.append(\);
}
results.append( value=\);
if (value == null)
results.append(on);
else
results.append(value);
results.append(\);
Object result = RequestUtils.lookup(pageContext, name, property, null);
if (result == null)
result = ;
if (!(result instanceof String))
result = result.toString();
String checked = (String) result;
if (checked.equalsIgnoreCase(true)
|| checked.equalsIgnoreCase(yes)
|| checked.equalsIgnoreCase(on))
results.append( checked=\checked\);
results.append(prepareEventHandlers());
results.append(prepareStyles());
results.append();
// Print this field to our output writer
ResponseUtils.write(pageContext, results.toString() + resultsHidden.toString());
// Continue processing this page
this.text = null;
return (EVAL_BODY_TAG);
}
- Original Message -
From: Barry L. White [EMAIL PROTECTED]
Date: Thursday, December 20, 2001 6:31 am
Subject: Re: Checkbox's question.
BONNET Francois-Xavier wrote:
You don't even need javascript :
I have modified checkboxTag to generate a hidden field with the same name that the
checkbox and value false. As Struts BeanUtils.populate(...) method takes first
value
found in the request to populate the field in the ActionForm, i just had to put the
hidden field after the checkbox.
It seems to work fine, no javascript and other developpers on my project do not
have to
worry about it anymore.
Francois-Xavier Bonnet
- Original Message -
From: Dan Cancro [EMAIL PROTECTED]
Date: Monday, December 17, 2001 6:41 pm
Subject: RE: Checkbox's question.
I was just thinking about this problem, too. I think this
checkbox-in-request-only-when-checked anomaly should be handled with
javascript like this:
The checkbox jsp tag should create a hidden field named after the property,
and a checkbox with some other name. When the checkbox is checked or
unchecked, it should change the value of the hidden field with a generated
line of javascript.
This way, the controller doesn't have to know that the field is rendered as
a checkbox (and do this special checkbox jig), and the field's value is only
changed when the field exists in the request. So if another jsp doesn't
have the checkbox at all, the value isn't touched.
Dan
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 10:29 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!!
All values from your formbean are sent in the request as
parameters when you
press submit - but checkbox values are only in this request
if they have the
value
Re: Checkbox's question.
BONNET Francois-Xavier wrote:
You don't even need javascript :
I have modified checkboxTag to generate a hidden field with the same name that the
checkbox and value false. As Struts BeanUtils.populate(...) method takes first value
found in the request to populate the field in the ActionForm, i just had to put the
hidden field after the checkbox.
It seems to work fine, no javascript and other developpers on my project do not have
to
worry about it anymore.
Francois-Xavier Bonnet
- Original Message -
From: Dan Cancro [EMAIL PROTECTED]
Date: Monday, December 17, 2001 6:41 pm
Subject: RE: Checkbox's question.
I was just thinking about this problem, too. I think this
checkbox-in-request-only-when-checked anomaly should be handled with
javascript like this:
The checkbox jsp tag should create a hidden field named after the property,
and a checkbox with some other name. When the checkbox is checked or
unchecked, it should change the value of the hidden field with a generated
line of javascript.
This way, the controller doesn't have to know that the field is rendered as
a checkbox (and do this special checkbox jig), and the field's value is only
changed when the field exists in the request. So if another jsp doesn't
have the checkbox at all, the value isn't touched.
Dan
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 10:29 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!!
All values from your formbean are sent in the request as
parameters when you
press submit - but checkbox values are only in this request
if they have the
value on = they are checked. If you use the reset method it
should work in a
correct way - values are first set to false by the reset
method and then,
if they are present i the request they receive value true,
otherwise the
have the value false. /Linnéa
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 7:07 PM
Subject: RE: Checkbox's question.
coincidentally, I was working on the check box today for the
first time. I
found the problem too.
It seems OK when you set the check box unchecked as defaut
(openWindow=null;). but when you set it checked as default,
each time you
uncheck the box and submit. the value won't change, it still remained
checked. In fact. the setOpenWindow(..) function has never
been called when
the box was unchecked. It is only called when the check box
is checked.
Any one knows what went wrong?
Thanks
Yunming Li
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 11:51 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!
Use the reset method in the form bean:
public void reset(ActionMapping mapping, HttpServletRequest request) {
openWindow= false;
}
This is a well known problem, see link:
http://www.jguru.com/faq/view.jsp?EID=471957
Good luck / Linnéa
- Original Message -
From: Hong Xing [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 4:05 PM
Subject: Checkbox's question.
Hi all,
I am a newbie.
I used html:checkbox in my work. But it worked strange. When I
first view the page and submit the form, the checkbox is OK. Then if I
view the page again and change the checkbox's state, the
checkbox is not
ok. It's always checked. How to fix it?
html:checkbox property=openWindow value=on/
public void setOpenWindow(String openWindow)
{
this.openWindow=openWindow;
}
public String getOpenWindow()
{
return openWindow;
}
private String openWindow=on;
Please help me!!!
Sincerely, Hong Xing
==
Bioinformatics Department
Beijing Genomics Institute
Beijing Center
Beijing Airport Industrial Zone B6
Beijing 101300
Tel: 0086-10-80494199-3306(Office)
Email : [EMAIL PROTECTED]
==
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Francois,
Could you post the changes you made to the checkBoxTag to the Struts dev group so it
can reviewed and possibly added to the next version of the taglibs? Hey, that's what
open source is all about. :)
Barry
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RE: Checkbox's question.
It's a consequence of the HTML standard. It does not represent unchecked
checkboxes. You can hardly call it a bug of struts.
And I don't think you should force your users to use java-enabled
browsers if you can do it otherwise.
My 0,02
tomK
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: maandag 17 december 2001 20:48
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!!
I think it's a bug...
Javascript is funny but it slows down the prestanda a lot
/Linnéa
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 8:27 PM
Subject: RE: Checkbox's question.
So it is the way supposed to be or just a bug of struts?
-Original Message-
From: Dan Cancro [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 1:41 PM
To: 'Struts Users Mailing List'
Subject: RE: Checkbox's question.
I was just thinking about this problem, too. I think this
checkbox-in-request-only-when-checked anomaly should be handled with
javascript like this:
The checkbox jsp tag should create a hidden field named after
the property,
and a checkbox with some other name. When the checkbox is checked or
unchecked, it should change the value of the hidden field
with a generated
line of javascript.
This way, the controller doesn't have to know that the field
is rendered as
a checkbox (and do this special checkbox jig), and the
field's value is only
changed when the field exists in the request. So if another
jsp doesn't
have the checkbox at all, the value isn't touched.
Dan
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 10:29 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!!
All values from your formbean are sent in the request as
parameters when you
press submit - but checkbox values are only in this request
if they have the
value on = they are checked. If you use the reset method it
should work in a
correct way - values are first set to false by the reset
method and then,
if they are present i the request they receive value true,
otherwise the
have the value false. /Linnéa
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 7:07 PM
Subject: RE: Checkbox's question.
coincidentally, I was working on the check box today for the
first time. I
found the problem too.
It seems OK when you set the check box unchecked as defaut
(openWindow=null;). but when you set it checked as default,
each time you
uncheck the box and submit. the value won't change, it
still remained
checked. In fact. the setOpenWindow(..) function has never
been called when
the box was unchecked. It is only called when the check box
is checked.
Any one knows what went wrong?
Thanks
Yunming Li
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 11:51 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!
Use the reset method in the form bean:
public void reset(ActionMapping mapping, HttpServletRequest
request) {
openWindow= false;
}
This is a well known problem, see link:
http://www.jguru.com/faq/view.jsp?EID=471957
Good luck / Linnéa
- Original Message -
From: Hong Xing [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 4:05 PM
Subject: Checkbox's question.
Hi all,
I am a newbie.
I used html:checkbox in my work. But it worked strange. When I
first view the page and submit the form, the checkbox is
OK. Then if I
view the page again and change the checkbox's state, the
checkbox is not
ok. It's always checked. How to fix it?
html:checkbox property=openWindow value=on/
public void setOpenWindow(String openWindow)
{
this.openWindow=openWindow;
}
public String getOpenWindow()
{
return openWindow;
}
private String openWindow=on;
Please help me!!!
Sincerely, Hong Xing
==
Bioinformatics Department
Beijing Genomics Institute
Beijing Center
Beijing Airport Industrial Zone B6
Beijing 101300
Tel: 0086-10-80494199-3306(Office)
Email : [EMAIL PROTECTED]
==
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To unsubscribe, e-mail:
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Re: RE: Checkbox's question.
You don't even need javascript :
I have modified checkboxTag to generate a hidden field with the same name that the
checkbox and value false. As Struts BeanUtils.populate(...) method takes first value
found in the request to populate the field in the ActionForm, i just had to put the
hidden field after the checkbox.
It seems to work fine, no javascript and other developpers on my project do not have
to
worry about it anymore.
Francois-Xavier Bonnet
- Original Message -
From: Dan Cancro [EMAIL PROTECTED]
Date: Monday, December 17, 2001 6:41 pm
Subject: RE: Checkbox's question.
I was just thinking about this problem, too. I think this
checkbox-in-request-only-when-checked anomaly should be handled with
javascript like this:
The checkbox jsp tag should create a hidden field named after the property,
and a checkbox with some other name. When the checkbox is checked or
unchecked, it should change the value of the hidden field with a generated
line of javascript.
This way, the controller doesn't have to know that the field is rendered as
a checkbox (and do this special checkbox jig), and the field's value is only
changed when the field exists in the request. So if another jsp doesn't
have the checkbox at all, the value isn't touched.
Dan
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 10:29 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!!
All values from your formbean are sent in the request as
parameters when you
press submit - but checkbox values are only in this request
if they have the
value on = they are checked. If you use the reset method it
should work in a
correct way - values are first set to false by the reset
method and then,
if they are present i the request they receive value true,
otherwise the
have the value false. /Linnéa
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 7:07 PM
Subject: RE: Checkbox's question.
coincidentally, I was working on the check box today for the
first time. I
found the problem too.
It seems OK when you set the check box unchecked as defaut
(openWindow=null;). but when you set it checked as default,
each time you
uncheck the box and submit. the value won't change, it still remained
checked. In fact. the setOpenWindow(..) function has never
been called when
the box was unchecked. It is only called when the check box
is checked.
Any one knows what went wrong?
Thanks
Yunming Li
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 11:51 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!
Use the reset method in the form bean:
public void reset(ActionMapping mapping, HttpServletRequest request) {
openWindow= false;
}
This is a well known problem, see link:
http://www.jguru.com/faq/view.jsp?EID=471957
Good luck / Linnéa
- Original Message -
From: Hong Xing [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 4:05 PM
Subject: Checkbox's question.
Hi all,
I am a newbie.
I used html:checkbox in my work. But it worked strange. When I
first view the page and submit the form, the checkbox is OK. Then if I
view the page again and change the checkbox's state, the
checkbox is not
ok. It's always checked. How to fix it?
html:checkbox property=openWindow value=on/
public void setOpenWindow(String openWindow)
{
this.openWindow=openWindow;
}
public String getOpenWindow()
{
return openWindow;
}
private String openWindow=on;
Please help me!!!
Sincerely, Hong Xing
==
Bioinformatics Department
Beijing Genomics Institute
Beijing Center
Beijing Airport Industrial Zone B6
Beijing 101300
Tel: 0086-10-80494199-3306(Office)
Email : [EMAIL PROTECTED]
==
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To unsubscribe, e-mail:
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RE: Checkbox's question.
Hi,
use the form's reset()-methode.
why:
- check out the links in the Struts resource area
- search the mailing list archive
regards
Alexander Jesse
-Original Message-
From: Hong Xing [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 4:06 PM
To: [EMAIL PROTECTED]
Subject: Checkbox's question.
Hi all,
I am a newbie.
I used html:checkbox in my work. But it worked strange. When I
first view the page and submit the form, the checkbox is OK. Then if I
view the page again and change the checkbox's state, the checkbox is not
ok. It's always checked. How to fix it?
html:checkbox property=openWindow value=on/
public void setOpenWindow(String openWindow)
{
this.openWindow=openWindow;
}
public String getOpenWindow()
{
return openWindow;
}
private String openWindow=on;
Please help me!!!
Sincerely, Hong Xing
==
Bioinformatics Department
Beijing Genomics Institute
Beijing Center
Beijing Airport Industrial Zone B6
Beijing 101300
Tel: 0086-10-80494199-3306(Office)
Email : [EMAIL PROTECTED]
==
--
To unsubscribe, e-mail: mailto:[EMAIL PROTECTED]
For additional commands, e-mail: mailto:[EMAIL PROTECTED]
--
To unsubscribe, e-mail: mailto:[EMAIL PROTECTED]
For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Checkbox's question.
Hi!
Use the reset method in the form bean:
public void reset(ActionMapping mapping, HttpServletRequest request) {
openWindow= false;
}
This is a well known problem, see link:
http://www.jguru.com/faq/view.jsp?EID=471957
Good luck / Linnéa
- Original Message -
From: Hong Xing [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 4:05 PM
Subject: Checkbox's question.
Hi all,
I am a newbie.
I used html:checkbox in my work. But it worked strange. When I
first view the page and submit the form, the checkbox is OK. Then if I
view the page again and change the checkbox's state, the checkbox is not
ok. It's always checked. How to fix it?
html:checkbox property=openWindow value=on/
public void setOpenWindow(String openWindow)
{
this.openWindow=openWindow;
}
public String getOpenWindow()
{
return openWindow;
}
private String openWindow=on;
Please help me!!!
Sincerely, Hong Xing
==
Bioinformatics Department
Beijing Genomics Institute
Beijing Center
Beijing Airport Industrial Zone B6
Beijing 101300
Tel: 0086-10-80494199-3306(Office)
Email : [EMAIL PROTECTED]
==
--
To unsubscribe, e-mail:
mailto:[EMAIL PROTECTED]
For additional commands, e-mail:
mailto:[EMAIL PROTECTED]
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For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Checkbox's question.
coincidentally, I was working on the check box today for the first time. I
found the problem too.
It seems OK when you set the check box unchecked as defaut
(openWindow=null;). but when you set it checked as default, each time you
uncheck the box and submit. the value won't change, it still remained
checked. In fact. the setOpenWindow(..) function has never been called when
the box was unchecked. It is only called when the check box is checked.
Any one knows what went wrong?
Thanks
Yunming Li
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 11:51 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!
Use the reset method in the form bean:
public void reset(ActionMapping mapping, HttpServletRequest request) {
openWindow= false;
}
This is a well known problem, see link:
http://www.jguru.com/faq/view.jsp?EID=471957
Good luck / Linnéa
- Original Message -
From: Hong Xing [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 4:05 PM
Subject: Checkbox's question.
Hi all,
I am a newbie.
I used html:checkbox in my work. But it worked strange. When I
first view the page and submit the form, the checkbox is OK. Then if I
view the page again and change the checkbox's state, the checkbox is not
ok. It's always checked. How to fix it?
html:checkbox property=openWindow value=on/
public void setOpenWindow(String openWindow)
{
this.openWindow=openWindow;
}
public String getOpenWindow()
{
return openWindow;
}
private String openWindow=on;
Please help me!!!
Sincerely, Hong Xing
==
Bioinformatics Department
Beijing Genomics Institute
Beijing Center
Beijing Airport Industrial Zone B6
Beijing 101300
Tel: 0086-10-80494199-3306(Office)
Email : [EMAIL PROTECTED]
==
--
To unsubscribe, e-mail:
mailto:[EMAIL PROTECTED]
For additional commands, e-mail:
mailto:[EMAIL PROTECTED]
--
To unsubscribe, e-mail:
mailto:[EMAIL PROTECTED]
For additional commands, e-mail:
mailto:[EMAIL PROTECTED]
Re: Checkbox's question.
Hi!!
All values from your formbean are sent in the request as parameters when you
press submit - but checkbox values are only in this request if they have the
value on = they are checked. If you use the reset method it should work in a
correct way - values are first set to false by the reset method and then,
if they are present i the request they receive value true, otherwise the
have the value false. /Linnéa
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 7:07 PM
Subject: RE: Checkbox's question.
coincidentally, I was working on the check box today for the first time. I
found the problem too.
It seems OK when you set the check box unchecked as defaut
(openWindow=null;). but when you set it checked as default, each time you
uncheck the box and submit. the value won't change, it still remained
checked. In fact. the setOpenWindow(..) function has never been called when
the box was unchecked. It is only called when the check box is checked.
Any one knows what went wrong?
Thanks
Yunming Li
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 11:51 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!
Use the reset method in the form bean:
public void reset(ActionMapping mapping, HttpServletRequest request) {
openWindow= false;
}
This is a well known problem, see link:
http://www.jguru.com/faq/view.jsp?EID=471957
Good luck / Linnéa
- Original Message -
From: Hong Xing [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 4:05 PM
Subject: Checkbox's question.
Hi all,
I am a newbie.
I used html:checkbox in my work. But it worked strange. When I
first view the page and submit the form, the checkbox is OK. Then if I
view the page again and change the checkbox's state, the checkbox is not
ok. It's always checked. How to fix it?
html:checkbox property=openWindow value=on/
public void setOpenWindow(String openWindow)
{
this.openWindow=openWindow;
}
public String getOpenWindow()
{
return openWindow;
}
private String openWindow=on;
Please help me!!!
Sincerely, Hong Xing
==
Bioinformatics Department
Beijing Genomics Institute
Beijing Center
Beijing Airport Industrial Zone B6
Beijing 101300
Tel: 0086-10-80494199-3306(Office)
Email : [EMAIL PROTECTED]
==
--
To unsubscribe, e-mail:
mailto:[EMAIL PROTECTED]
For additional commands, e-mail:
mailto:[EMAIL PROTECTED]
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RE: Checkbox's question.
I was just thinking about this problem, too. I think this
checkbox-in-request-only-when-checked anomaly should be handled with
javascript like this:
The checkbox jsp tag should create a hidden field named after the property,
and a checkbox with some other name. When the checkbox is checked or
unchecked, it should change the value of the hidden field with a generated
line of javascript.
This way, the controller doesn't have to know that the field is rendered as
a checkbox (and do this special checkbox jig), and the field's value is only
changed when the field exists in the request. So if another jsp doesn't
have the checkbox at all, the value isn't touched.
Dan
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 10:29 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!!
All values from your formbean are sent in the request as
parameters when you
press submit - but checkbox values are only in this request
if they have the
value on = they are checked. If you use the reset method it
should work in a
correct way - values are first set to false by the reset
method and then,
if they are present i the request they receive value true,
otherwise the
have the value false. /Linnéa
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 7:07 PM
Subject: RE: Checkbox's question.
coincidentally, I was working on the check box today for the
first time. I
found the problem too.
It seems OK when you set the check box unchecked as defaut
(openWindow=null;). but when you set it checked as default,
each time you
uncheck the box and submit. the value won't change, it still remained
checked. In fact. the setOpenWindow(..) function has never
been called when
the box was unchecked. It is only called when the check box
is checked.
Any one knows what went wrong?
Thanks
Yunming Li
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 11:51 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!
Use the reset method in the form bean:
public void reset(ActionMapping mapping, HttpServletRequest request) {
openWindow= false;
}
This is a well known problem, see link:
http://www.jguru.com/faq/view.jsp?EID=471957
Good luck / Linnéa
- Original Message -
From: Hong Xing [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 4:05 PM
Subject: Checkbox's question.
Hi all,
I am a newbie.
I used html:checkbox in my work. But it worked strange. When I
first view the page and submit the form, the checkbox is OK. Then if I
view the page again and change the checkbox's state, the
checkbox is not
ok. It's always checked. How to fix it?
html:checkbox property=openWindow value=on/
public void setOpenWindow(String openWindow)
{
this.openWindow=openWindow;
}
public String getOpenWindow()
{
return openWindow;
}
private String openWindow=on;
Please help me!!!
Sincerely, Hong Xing
==
Bioinformatics Department
Beijing Genomics Institute
Beijing Center
Beijing Airport Industrial Zone B6
Beijing 101300
Tel: 0086-10-80494199-3306(Office)
Email : [EMAIL PROTECTED]
==
--
To unsubscribe, e-mail:
mailto:[EMAIL PROTECTED]
For additional commands, e-mail:
mailto:[EMAIL PROTECTED]
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For additional commands, e-mail:
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RE: Checkbox's question.
So it is the way supposed to be or just a bug of struts?
-Original Message-
From: Dan Cancro [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 1:41 PM
To: 'Struts Users Mailing List'
Subject: RE: Checkbox's question.
I was just thinking about this problem, too. I think this
checkbox-in-request-only-when-checked anomaly should be handled with
javascript like this:
The checkbox jsp tag should create a hidden field named after the property,
and a checkbox with some other name. When the checkbox is checked or
unchecked, it should change the value of the hidden field with a generated
line of javascript.
This way, the controller doesn't have to know that the field is rendered as
a checkbox (and do this special checkbox jig), and the field's value is only
changed when the field exists in the request. So if another jsp doesn't
have the checkbox at all, the value isn't touched.
Dan
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 10:29 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!!
All values from your formbean are sent in the request as
parameters when you
press submit - but checkbox values are only in this request
if they have the
value on = they are checked. If you use the reset method it
should work in a
correct way - values are first set to false by the reset
method and then,
if they are present i the request they receive value true,
otherwise the
have the value false. /Linnéa
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 7:07 PM
Subject: RE: Checkbox's question.
coincidentally, I was working on the check box today for the
first time. I
found the problem too.
It seems OK when you set the check box unchecked as defaut
(openWindow=null;). but when you set it checked as default,
each time you
uncheck the box and submit. the value won't change, it still remained
checked. In fact. the setOpenWindow(..) function has never
been called when
the box was unchecked. It is only called when the check box
is checked.
Any one knows what went wrong?
Thanks
Yunming Li
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 11:51 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!
Use the reset method in the form bean:
public void reset(ActionMapping mapping, HttpServletRequest request) {
openWindow= false;
}
This is a well known problem, see link:
http://www.jguru.com/faq/view.jsp?EID=471957
Good luck / Linnéa
- Original Message -
From: Hong Xing [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 4:05 PM
Subject: Checkbox's question.
Hi all,
I am a newbie.
I used html:checkbox in my work. But it worked strange. When I
first view the page and submit the form, the checkbox is OK. Then if I
view the page again and change the checkbox's state, the
checkbox is not
ok. It's always checked. How to fix it?
html:checkbox property=openWindow value=on/
public void setOpenWindow(String openWindow)
{
this.openWindow=openWindow;
}
public String getOpenWindow()
{
return openWindow;
}
private String openWindow=on;
Please help me!!!
Sincerely, Hong Xing
==
Bioinformatics Department
Beijing Genomics Institute
Beijing Center
Beijing Airport Industrial Zone B6
Beijing 101300
Tel: 0086-10-80494199-3306(Office)
Email : [EMAIL PROTECTED]
==
--
To unsubscribe, e-mail:
mailto:[EMAIL PROTECTED]
For additional commands, e-mail:
mailto:[EMAIL PROTECTED]
--
To unsubscribe, e-mail:
mailto:[EMAIL PROTECTED]
For additional commands, e-mail:
mailto:[EMAIL PROTECTED]
--
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For additional commands, e-mail:
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RE: Checkbox's question.
This was just an idea for an improvement to the CheckboxTag tag that would
help cope with some HTML wierdness. What do the rest of you think?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 11:28 AM
To: [EMAIL PROTECTED]
Subject: RE: Checkbox's question.
So it is the way supposed to be or just a bug of struts?
-Original Message-
From: Dan Cancro [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 1:41 PM
To: 'Struts Users Mailing List'
Subject: RE: Checkbox's question.
I was just thinking about this problem, too. I think this
checkbox-in-request-only-when-checked anomaly should be handled with
javascript like this:
The checkbox jsp tag should create a hidden field named after
the property,
and a checkbox with some other name. When the checkbox is checked or
unchecked, it should change the value of the hidden field
with a generated
line of javascript.
This way, the controller doesn't have to know that the field
is rendered as
a checkbox (and do this special checkbox jig), and the
field's value is only
changed when the field exists in the request. So if another
jsp doesn't
have the checkbox at all, the value isn't touched.
Dan
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 10:29 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!!
All values from your formbean are sent in the request as
parameters when you
press submit - but checkbox values are only in this request
if they have the
value on = they are checked. If you use the reset method it
should work in a
correct way - values are first set to false by the reset
method and then,
if they are present i the request they receive value true,
otherwise the
have the value false. /Linnéa
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 7:07 PM
Subject: RE: Checkbox's question.
coincidentally, I was working on the check box today for the
first time. I
found the problem too.
It seems OK when you set the check box unchecked as defaut
(openWindow=null;). but when you set it checked as default,
each time you
uncheck the box and submit. the value won't change, it
still remained
checked. In fact. the setOpenWindow(..) function has never
been called when
the box was unchecked. It is only called when the check box
is checked.
Any one knows what went wrong?
Thanks
Yunming Li
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 11:51 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!
Use the reset method in the form bean:
public void reset(ActionMapping mapping, HttpServletRequest
request) {
openWindow= false;
}
This is a well known problem, see link:
http://www.jguru.com/faq/view.jsp?EID=471957
Good luck / Linnéa
- Original Message -
From: Hong Xing [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 4:05 PM
Subject: Checkbox's question.
Hi all,
I am a newbie.
I used html:checkbox in my work. But it worked strange. When I
first view the page and submit the form, the checkbox is
OK. Then if I
view the page again and change the checkbox's state, the
checkbox is not
ok. It's always checked. How to fix it?
html:checkbox property=openWindow value=on/
public void setOpenWindow(String openWindow)
{
this.openWindow=openWindow;
}
public String getOpenWindow()
{
return openWindow;
}
private String openWindow=on;
Please help me!!!
Sincerely, Hong Xing
==
Bioinformatics Department
Beijing Genomics Institute
Beijing Center
Beijing Airport Industrial Zone B6
Beijing 101300
Tel: 0086-10-80494199-3306(Office)
Email : [EMAIL PROTECTED]
==
--
To unsubscribe, e-mail:
mailto:[EMAIL PROTECTED]
For additional commands, e-mail:
mailto:[EMAIL PROTECTED]
--
To unsubscribe, e-mail:
mailto:[EMAIL PROTECTED]
For additional commands, e-mail:
mailto:[EMAIL PROTECTED]
--
To unsubscribe, e-mail:
mailto:[EMAIL PROTECTED]
For additional commands, e-mail:
mailto:[EMAIL PROTECTED]
--
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For additional commands, e-mail:
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Re: Checkbox's question.
Hi!!
I think it's a bug...
Javascript is funny but it slows down the prestanda a lot
/Linnéa
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 8:27 PM
Subject: RE: Checkbox's question.
So it is the way supposed to be or just a bug of struts?
-Original Message-
From: Dan Cancro [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 1:41 PM
To: 'Struts Users Mailing List'
Subject: RE: Checkbox's question.
I was just thinking about this problem, too. I think this
checkbox-in-request-only-when-checked anomaly should be handled with
javascript like this:
The checkbox jsp tag should create a hidden field named after the property,
and a checkbox with some other name. When the checkbox is checked or
unchecked, it should change the value of the hidden field with a generated
line of javascript.
This way, the controller doesn't have to know that the field is rendered as
a checkbox (and do this special checkbox jig), and the field's value is only
changed when the field exists in the request. So if another jsp doesn't
have the checkbox at all, the value isn't touched.
Dan
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 10:29 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!!
All values from your formbean are sent in the request as
parameters when you
press submit - but checkbox values are only in this request
if they have the
value on = they are checked. If you use the reset method it
should work in a
correct way - values are first set to false by the reset
method and then,
if they are present i the request they receive value true,
otherwise the
have the value false. /Linnéa
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 7:07 PM
Subject: RE: Checkbox's question.
coincidentally, I was working on the check box today for the
first time. I
found the problem too.
It seems OK when you set the check box unchecked as defaut
(openWindow=null;). but when you set it checked as default,
each time you
uncheck the box and submit. the value won't change, it still remained
checked. In fact. the setOpenWindow(..) function has never
been called when
the box was unchecked. It is only called when the check box
is checked.
Any one knows what went wrong?
Thanks
Yunming Li
-Original Message-
From: Linnea Ahlbeck [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 11:51 AM
To: Struts Users Mailing List
Subject: Re: Checkbox's question.
Hi!
Use the reset method in the form bean:
public void reset(ActionMapping mapping, HttpServletRequest request) {
openWindow= false;
}
This is a well known problem, see link:
http://www.jguru.com/faq/view.jsp?EID=471957
Good luck / Linnéa
- Original Message -
From: Hong Xing [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, December 17, 2001 4:05 PM
Subject: Checkbox's question.
Hi all,
I am a newbie.
I used html:checkbox in my work. But it worked strange. When I
first view the page and submit the form, the checkbox is OK. Then if I
view the page again and change the checkbox's state, the
checkbox is not
ok. It's always checked. How to fix it?
html:checkbox property=openWindow value=on/
public void setOpenWindow(String openWindow)
{
this.openWindow=openWindow;
}
public String getOpenWindow()
{
return openWindow;
}
private String openWindow=on;
Please help me!!!
Sincerely, Hong Xing
==
Bioinformatics Department
Beijing Genomics Institute
Beijing Center
Beijing Airport Industrial Zone B6
Beijing 101300
Tel: 0086-10-80494199-3306(Office)
Email : [EMAIL PROTECTED]
==
--
To unsubscribe, e-mail:
mailto:[EMAIL PROTECTED]
For additional commands, e-mail:
mailto:[EMAIL PROTECTED]
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For additional commands, e-mail:
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