protected void Btn_Click(object sender, EventArgs e)
        {
           SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();

            builder["Data Source"] = TxtDataSource.Text;
            builder["Initial Catalog"] = TxtInitialCatalog.Text;
            builder["User ID"] = TxtUserID.Text;
            builder["Password"] = TxtPassword.Text;
            Debug.Write(builder.ConnectionString);
        }

strConnection = @"Data Source=ORDEP-PCSQLEXPRESS;Initial Catalog=costumized;Persist Security Info=True;User ID=sa;Password=1234";

strConnection = (builder.ConnectionString)