xaml - WPF expander not expanded above buttons make buttons unclickable -


in wpf form, have expander expands above other controls, such buttons :

<expander grid.row="0" panel.zindex="99" name="searchmenuexpander" header="search menu" fontweight="bold" horizontalalignment="stretch" margin="10,10,0,0" minwidth="510" minheight="200" verticalalignment="top" foreground="midnightblue" cursor="arrow">     <grid background="white">         <border horizontalalignment="stretch" verticalalignment="stretch" />         <textblock text="name" horizontalalignment="left" verticalalignment="top" margin="20,10,0,0" width="65" height="20" cursor="arrow" />         <textbox name="namesearchtextbox"  horizontalalignment="left" verticalalignment="top" margin="115,10,0,0" width="100" height="20"/>     </grid> </expander> <button content="button" height="34" width="85"/>

my problem controls behind expander not clickable anymore, when expander not expanded. happening? how rid of bug?

assuming have grid parent of both expander , button, need put button on different row.

<grid>     <grid.rowdefinitions>         <rowdefinition height="auto" />         <rowdefinition />     </grid.rowdefinitions>     <expander grid.row="0">     </expander>     <button grid.row="1" /> </grid>

by setting height of first row (which contains expander) auto, ensure minimized when expander not-expanded (only header part of expander occupy space).


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