I have several listboxes which have a SelectedItem property I intend to use as input parameters to execute my stored procedure in Entity Framework.
I now realize my only
You can access it as a function call, and the order of the parameters is determined by EF:
using (var db = new YourEntityContext())
{
var result = db.YourFunctionImportName(
Convert.ToInt32(ddlWhatever1.SelectedValue),
Convert.ToInt32(ddlWhatever2.SelectedValue));
//Int32 used as an example, use whatever type your function import is expecting.
//Do whatever with result.
}