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ASP.net (CheckBoxList) determine which Item was Checked

Posted on 2014-02-06
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Last Modified: 2014-02-12
Hello Experts!

Let me start by saying I don't want to loop through all the checkboxlist items.

What I'm trying to do is if a certian item is checked within the checkboxlist items box I want to disable the rest of the items in the list.

You see if have a list of roles...if the administrator selects the "Reporting" Role I want to disable ALL the other roles as this is the ONLY role they are allowed to have.  Vise Versa if they uncheck the "Reporting" role I want to enable the rest of the roles again to be allowed to be checked off.

I have the checkboxlist inside a UpdatePanel so it will only Post Back this area of the page, but I want to know if that item is checked rather than looping through the whole list to see if that was checked off then have to loop through again to disable the rest of the roles.

Any ideas??

Thanks,
Mark
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Question by:smithmrk
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9 Comments
 
LVL 19

Expert Comment

by:Melih SARICA
ID: 39839417
I once saw a nice example.. try this..

var selected = CBLGold.Items.Cast<ListItem>().Where(x => x.Selected);

and populate other items
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Author Comment

by:smithmrk
ID: 39839427
Is this JavaScript or Code Behind?
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LVL 19

Expert Comment

by:Melih SARICA
ID: 39839477
Code behind Linq
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Author Comment

by:smithmrk
ID: 39839489
OH...then this won't work, I'm using Visual Studio 2005 (.net 2.0) so Linq will NOT work.

Any other ideas??

Thanks,
Mark
0
 
LVL 19

Expert Comment

by:Melih SARICA
ID: 39839504
Jquery  posibility ?
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Author Comment

by:smithmrk
ID: 39839527
There is no way to get the item that was just checked in Code Behind?

If I click a box it automatically posts back...there must be a way to get the item I just checked off.

Mark
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LVL 19

Accepted Solution

by:
Melih SARICA earned 500 total points
ID: 39839572
Nope its not possible.. with checkboxlist. Its explained in MSDN

http://msdn.microsoft.com/en-US/library/y860k7cx(v=vs.80).aspx

but an idea u can try ..

Putting indidual checkboxes with repeater and setting  CheckedChanged event to an event can help u i guess..
<repeater>
 <header>
   <panel>
  </header>
 <item>
   <checkbox  CheckedChanged="samefunctionforallcheckboxes>
  </item>
<footer>
  </panel>
</footer>
</repeater>

then u can reach all checkboxes from panel.controls
0
 

Author Comment

by:smithmrk
ID: 39839588
OK, I'll get back to you then...stay tune.
I'll try it out and get back to you.

Mark
0
 

Author Closing Comment

by:smithmrk
ID: 39854626
Well I'll give you the points for helping me out...but I decided to do it a totally different way rather than screw around with the CheckBoxList.

Thanks for the help though!

Mark
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