c# - Access a Datagrid in a Rowdetailtemplate -

i've created datagrid in datagrid.rowdetailstemplate , use items.refresh on when click on button created outside of datagrid.

i can't find way access function datagrid_detail button button_refreshdetail. here code :

<datagrid x:name="datagrid" horizontalalignment="left" height="618" margin="10,74,0,0" verticalalignment="top" width="1472" autogeneratecolumns="false" loadingrowdetails="datagrid_loadingrowdetails" canuseraddrows="false">     <datagrid.columns>         <datagridtextcolumn header="a" binding="{binding a}" width="*"/>         </datagrid.columns>         <datagrid.rowdetailstemplate>             <datatemplate>                 <datagrid x:name="datagrid_detail" itemssource="{binding b}" autogeneratecolumns="false" selectionchanged="datagrid_detail_selectionchanged" mouseleftbuttonup="datagrid_detail_mouseleftbuttonup">                     <datagrid.columns>                         <datagridcheckboxcolumn header="c" binding="{binding c, mode=twoway}" isreadonly="false"/>                         <datagridtextcolumn header="d" binding="{binding d, mode=twoway}" isreadonly="false"/>                         <datagridcomboboxcolumn header="e" x:name="combobox_e"/>                         <datagridcomboboxcolumn header="f" x:name="combobox_f"/>                         <datagridtextcolumn header="g" binding="{binding g, mode=twoway}" isreadonly="false"/>                         <datagridcomboboxcolumn header="h" x:name="combobox_h"/>                         <datagridcomboboxcolumn header="i" x:name="combobox_i"/>                         <datagridtemplatecolumn width="45" header="j">                             <datagridtemplatecolumn.celltemplate>                                 <datatemplate>                                     <image source="j.png" width="20" height="20"/>                                 </datatemplate>                             </datagridtemplatecolumn.celltemplate>                         </datagridtemplatecolumn>                     </datagrid.columns>                 </datagrid>             </datatemplate>         </datagrid.rowdetailstemplate>     </datagrid>     <button x:name="button_refreshdetail" content="button_refreshdetail" horizontalalignment="left" height="26" margin="129,697,0,0" verticalalignment="top" width="118" click="button_refreshdetail"/> 

thank help.

couldn't use collection named "b" in order alter items?

if binding configured , mean :

• b observablecollection

and every custom data type in collection

• implements inotifypropertychanged

you should able update properties of each object or add/remove items collection , view updated no other code.

at least do. maybe not understanding refreshing scenario.