protected void btnDelete_Click(object sender, EventArgs e)
        {
            Student objstudent = new Student();
            objstudent.studentID = txtbxID.Text;
            StudentDal sd = new StudentDal();
            bool status = sd.DeleteStudentInfo(objstudent);
            if (status)
            {
                lblMessage.Text = "Data Deleted Successfully";
                lblMessage.ForeColor = Color.Green;
                lblMessage.Font.Size = 12;
            }

            else
            {
                lblMessage.Text = "Data Delete Failed";
                lblMessage.ForeColor = Color.Red;
                lblMessage.Font.Size = 12;
            }
            Response.Redirect("StudentInfo.aspx");
        }