private void button2_Click(object sender, EventArgs e) { int age = int.Parse(textBox2.Text); StudentContext st = new StudentContext(); StudentData st1 = st.StuData.First(i => i.Age == age); st.StuData.Remove(st1); st.SaveChanges(); }
private void button3_Click(object sender, EventArgs e) { string name = textBox1.Text; int age = int.Parse(textBox2.Text); StudentContext st = new StudentContext(); StudentData st2 = st.StuData.First(i => i.Age == age); st2.Name = name; st.SaveChanges(); }
private void button1_Click(object sender, EventArgs e) { string name = textBox1.Text; int mobile = int.Parse(textBox3.Text); StudentData st1 = new StudentData { Name = name, Mobile = mobile }; StudentContext st = new StudentContext(); st.StuData.Add(st1); st.SaveChanges(); }