Editable datagrid inside a combo box in WPF?

Is it possible to show an editable data开发者_JAVA百科grid inside a combo box? I have to show the columns of another datagrid in one column and the filter condition in the second column.

which is the best way to do this?

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Yes you can template the combobox to display a datagrid in it. If you are not using dotnet 4, you will find the DataGrid control in the WPF Toolkit