This week's giveaway is in the Android forum.
We're giving away four copies of Android Security Essentials Live Lessons and have Godfrey Nolan on-line!
See this thread for details.
The moose likes Struts and the fly likes how to display a check box using html:checkbox ? Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of Android Security Essentials Live Lessons this week in the Android forum!
JavaRanch » Java Forums » Frameworks » Struts
Bookmark "how to display a check box using html:checkbox ?" Watch "how to display a check box using html:checkbox ?" New topic
Author

how to display a check box using html:checkbox ?

Ajay Xavier
Ranch Hand

Joined: Jan 03, 2005
Posts: 109
Hi,

I am new to Struts programming. My requirement is to Display a check box in a Page1(with standard display text) and display some additional
information in Page2 if the check box is checked.(should be developed using struts)

i created a Actionform with a boolean variable



In my JSP page1 i am using <html:checkbox> to generate a check box


In my struts-config.xml the scope of this action is set to "Session" (this should be session for some other purpose)

If i check the checkbox for the first time and clicking on the Next button. Page2 gets displayed with the additional text.

On clicking the Back button on page2, it displays page1 with values retained(check box is selected since scope is set as session). On deselecting the checkbox and clicking on the next button, Page2 gets displayed with the additional text. The "displayAddText" does not get toggled when the check box toggles. (whereas the value toggled
for the first time).

what could be the problem? where am i going wrong? please let me know.

Thanks in advance.

Regards,
Ajay.
Merrill Higginson
Ranch Hand

Joined: Feb 15, 2005
Posts: 4864
Add the following method to your ActionForm:


This is necessary because of a quirky behavior of HTML. When a checkbox is not checked, no value is returned to the server. That means if the boolean is set to true, it will stay set to true even if the box is unchecked. Since Struts automatically calls the reset method before populating the properties of the ActionForm, the above code makes sure the value starts out as false and only gets set to true if the box is checked.
[ September 13, 2006: Message edited by: Merrill Higginson ]

Merrill
Consultant, Sima Solutions
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: how to display a check box using html:checkbox ?
 
Similar Threads
how to populate formbean property using html:checkbox values
Display checkbox intially checked
URGENT ! Trouble using CHECKBOX
actionlistener for selectBooleanCheckbox doubt?
How to return to the last page in failure