[Solved] Pass Output Parameter in Entity Framework (EDMX) in ASP.Net

I am working with edmx I have make a stored procedure  which return scope identity.

Everything is ok but I have no idea how I   use the out put parmeter following  m y code.

public static string Insert(newdata insert)
    {
        db.Isertdata(
        insert.Name,
        insert.address,
        insert.phonenumber,
        HttpResponse.Write(outputParameter.Value)………………….

this is out put parameter which name is Id I have no how I pass it and return value from it and save into a hidden fie please help me to solve it