mvvm - Bind to selected items in WPF DataGrid -

mvvm - Bind to selected items in WPF DataGrid -

i want know selected items in datagrid (insert them collection in viewmodel).

when bind selected item changed when click on row (1 row), when press ctrl + clicking remains first item, why happening , possible link selected items?

here datagrid:

<datagrid selectedindex="{binding selectedxindex}" datacontext="{binding xviewmodel}" selecteditem="{binding currentx}" itemssource="{binding listx, mode=twoway}" autogeneratecolumns="false" > <datagrid.columns> ... </datagrid.columns> </datagrid>

in xviewmodel have:

selectedxindex (int) selected index

currentx (object of class x) current selection

listx - list of class x

the first suggestions made did not work. leave them historical reasons.

i think problem want kind of unusual - or error prone. set bind selecteditem (one item) while want able select multiple.

i set no binding @ in xaml (except itemssource of course) , track selection changes selectionchanged event in end code. link similar problem supporting method found here

hope find improve solution

old suggestions:

this should solve issue seem treating single mode selection datagrid nto explicitely define such:

<datagrid selectionmode="single"

if want selection mode multiple should not bind selectedindex

i wonder why have both selectedindex binding , selecteditem binding. in case 1 should needed.

keep selecteditem binding set selectionmode extended , seek again

wpf mvvm datagrid selecteditem