WPF "flying" combobox

is it possible to create a combobox in wpf from code, which I could position wherever I want on the 开发者_JS百科window? In my case, I basically want to create something like a Autocomplete for DataGrid rows,...

Thanks!

TextBox supports auto complete, and you can create your datagrid's template column and you can specify the template with textbox which can interact and give you autocompletion.

if you put it in a <Popup> you can then position the popup wherever you want--it is not "bound" by a parent container.