How collapse a expander with a click?

[Manuel]

Hi there,

I´ve in my silverlight application one expander. What I want to do is after click in some button,the expander automatically collapse.

There is some property for this? I can´t find nothing.

Thanks in advance,

[Manuel]

Already fix it.

Ignore this post please.

[manoj savalia]

Please set IsExpanded="True" or "False" when click on it.