c# - DataGridComboBoxColumn binding -

i have seen few posts on here people getting confused on how bind datagridcomboboxcolumn,

i have

<datagridcomboboxcolumn selecteditembinding="{binding collection}"  displaymemberpath="name" header="name" width="70"> 

which didnt work..

so used

<datagridcomboboxcolumn itembinding="{binding collection}" displaymemberpath="name"> header="name" width="70"> 

which again didn't work, why binding datagridcombo different original combo box.

<combobox itemssource="{binding collection}" displaymemberpath="name" horizontalalignment="left"> 

which work

what correct method of binding combo box inside datagrid?

---edit---

i might have found problem, have datagrid binding itemsource, however, want comboboxcolumn bounded different itemsource, possible?

cheers

you need bind itemssource property. set in editingelementstyle.

<datagridcomboboxcolumn>     <datagridcomboboxcolumn.editingelementstyle>         <style targettype="combobox">             <setter property="itemssource" value="{binding collection}"/>             <setter property="displaymemberpath" value="name"/>         </style>     </datagridcomboboxcolumn.editingelementstyle> </datagridcomboboxcolumn> 

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in case want itemssource bind collection outside of datagrid underlying source object, can well.

say have collection anothercollection residing in viewmodel of window/usercontrol, can bind using relativesource markup extension.

also, have set selecteditembinding property want set value selected combobox , declare same style under elementstyle of datagridcomboboxcolumn. suppose property name name want bind.

<datagridcomboboxcolumn selecteditembinding="{binding name}">     <datagridcomboboxcolumn.editingelementstyle>         <style targettype="combobox">             <setter property="itemssource"                     value="{binding datacontext.anothercollection,                                relativesource={relativesource mode=findancestor,                                                           ancestortype=window}}"/>             <setter property="displaymemberpath" value="name"/>         </style>     </datagridcomboboxcolumn.editingelementstyle>     <datagridcomboboxcolumn.elementstyle>         <style targettype="combobox">             <setter property="itemssource"                     value="{binding datacontext.anothercollection,                               relativesource={relativesource mode=findancestor,                                                           ancestortype=window}}"/>             <setter property="displaymemberpath" value="name"/>         </style>     </datagridcomboboxcolumn.elementstyle> </datagridcomboboxcolumn>