Custom Button to Edit a Modal Form

I'm new to DataTables, but I have a custom button that I am using to edit the data in the Modal form. Currently, I like to use the modal form, instead of the standard edit form that comes with the editor. So in the DataTable, I have several rows of data. When I select a row and click on the custom (Edit) button, I want to pass all of the data to the modal form. What is the best way. Thanks.