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();
}
