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How to collapse the expanders dynamically in a stack panel?

Posted By:      Posted Date: August 27, 2010    Points: 0   Category :WPF
Hello, please help me in this scenario: I have created 1 stack panel & dynamically i have added the expanders. How to collapse the expanders when 1 expander is expanded??? i want 1 expander to be expanded at a time, when i expand 1 expander, automatically other all expanders should be in collapsed state??

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