get the cell values lies in the next column of same row of checked checkboxes in wpf datagridview

I have a two data gridview in wpf form.

Datagrid 1: Q1) should contain the list of fields of a data table. (solved by using sql query and data griditemsource= datatable.defaultview. Q2) along with the fields the checkbox column should be there in data grid view with multiple selection for fields.

once i click the button the selected (check box checked) fields headers should create new columns in datagrid 2.

Kindly help.