Send values to modal popup using Jquery

I have a gridview that contains a hyperlink column.  When a user clicks on the hyperlink, a modal popup containing a user control is displayed.  My question is, how do I send values from the grid containing the hyperlink column to the usercontrol inside of the modal popup?  I want to be able to access the grid values inside of the user control code behind.
 
$(document).on("click", ".modalcolumn", function (e) { //assign column values $("#modalContent").show(); });