System.ArgumentException:in treeview

[sasire18]

Hi I am creating a dynamic treeview from sql database while running the page i get the following error

System.ArgumentException: Format of the initialization string does not conform to specification starting at index 52.

I am writing the small code snipet where the error is occuring

private void GenerateTreeView()
{
SqlConnection con=new SqlConnection("server=server-name;database=pubs;user id=sa;password=sa;" + Server.MapPath("~/data/Tree.sql"));
con.Open();

I dont know what causing it this error. sasi