protected void DeleteStudent_Click(object sender, EventArgs e) { if (TextBoxDeleteId.Text.Equals("") ) { Response.Write("<script language='javascript'>alert('Please fill the Delete Id field.');</script>"); } else { String stu_Id = TextBoxDeleteId.Text; StudentsDBDataClassesDataContext db = new StudentsDBDataClassesDataContext(); Student stu = db.Students.Single(u => u.Student_Id == stu_Id); db.Students.DeleteOnSubmit(stu); db.SubmitChanges(); TextBoxDeleteId.Text = ""; GridView1.DataBind(); } }
protected void Button1_Click(object sender, EventArgs e) { if (TextBoxID.Text.Equals("") || TextBoxName.Text.Equals("") || TextBoxAge.Text.Equals("") || TextBoxUniversity.Text.Equals("")) { Response.Write("<script language='javascript'>alert('Please fill all the fields.');</script>"); } else { String stu_Id = TextBoxID.Text; StudentsDBDataClassesDataContext db = new StudentsDBDataClassesDataContext(); Student stu = db.Students.Single(u => u.Student_Id == stu_Id); stu.Student_Age = Convert.ToInt32(TextBoxAge.Text); stu.Student_Name = TextBoxName.Text; stu.Student_University = TextBoxUniversity.Text; db.SubmitChanges(); TextBoxID.Text = ""; TextBoxAge.Text = ""; TextBoxName.Text = ""; TextBoxUniversity.Text = ""; GridView1.DataBind(); } }