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.NET Forum / ASP.NET / General / July 2007checkboxlist - determine checkbox that caused control to fire
Hi all, I have a CheckBoxList control which has about 10 items. I have set autopostback=true and also set an eventhandler for OnSelectedIndexChanged. The problem is I want to identify which checkbox item caused the event to fire to perform some routines based upon the value of that individual checkbox. How can I determine this? For example, 5 of the 10 items maybe checked. However, when I uncheck one, I want to perform some code based upon the value of just that 1 checkbox that fired the event. TIA! On Jul 28, 7:09 am, <pa...@community.nospam> wrote: > Hi all, > [quoted text clipped - 7 lines] > > TIA! HI... in the OnSelectedIndexChanged eventhandler you access selectedItem.. and more hover you can loop through the items on the items of the checkboxlist... you can check the value... or to some extent you can also add custom attribute to your item... then check the value and perhaps attribute to do your job.... could you give a example exactly what are you trying to accomplish... Thanks Md. Masudur Rahman (Munna) Kaz Software Ltd. www.kaz.com.bd http://munnacs.110mb.com > Hi all, > [quoted text clipped - 6 lines] > one, I want to perform some code based upon the value of just that 1 > checkbox that fired the event. You can't identify which checkbox caused the event to fire, because several may be selected, and the control doesn't keep track of which one was changed (it does keep track internally, but it doesn't let you know). You'll have to store the list of selected items before the postback in ViewState, and compare this with the selected items after postback. Another option might be to replace the checkboxlist with a set of separate checkboxes, and link them all to the same OnCheckedChanged handler. The first parameter of the event handler (sender) will refer to the checkbox that caused the postback.  SignatureRiki Maybe MS should consider opening up that hidden property to let me know which checkbox fired the event in the CheckBoxList. Anyways, I like your second idea. Maybe, I will give that a shot. thanks >> Hi all, >> [quoted text clipped - 18 lines] > first parameter of the event handler (sender) will refer to the checkbox > that caused the postback. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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