The Mutually Exclusive Checkbox extender can be applied to a collection of Checkobxes when we want the user to select only one checkbox from a collection of many. This can not be achieved with the normal checkbox (possible but not as possible as with the extender).
Steps to use Mutually Exclusive Checkbox Extender :
1. Add 2-3 Checkboxes on your webform.
2. Add the Mutually Exclusive Checkbox Extender to all the checkboxes.
3. Specify the following properties :
TargetControlID : The ID of Checkbox on which the Extender is to be applied.
Key : A common name given to all the extenders which makes all the checkboxes mutually exclusive for a given key name.
This is all that has to be done for using a Mutually Exclusive Checkbox Extender and your controls are ready to be used.
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