private void button13_Click(object sender, EventArgs e)
{
if (textBox2.Text != "")
{
try
{
int serchkey = Convert.ToInt32(textBox2.Text);
Student todel = Serchclass.Liniersearch(students, serchkey);
if (todel == null)
{
MessageBox.Show("that element not exist");
}
students.Remove(todel);
textBox1.Clear();
for (int i = 0; i < students.Count; i++)
{
textBox1.AppendText(students[i].printinfo());
}
}
catch (FormatException)
{
MessageBox.Show("uncorrect data");
}
}
else
{
MessageBox.Show("wrong data");
}
}
private void button2_Click(object sender, EventArgs e)
{
if (textBox2.Text != "" && textBox3.Text != "")
{
Student temp = Serchclass.Liniersearch(students, Convert.ToInt32(textBox2.Text));
bool flag = false;
if (temp != null)
{
for (int i = 0; i < students.Count; i++)
{
if (temp.Name == students[i].Name || temp.Number == students[i].Number)
{
MessageBox.Show("this element already exist");
flag = true;
break;
}
}
}
if (!flag)
{
try
{
students.Add(new Student(textBox3.Text, Convert.ToInt32(textBox2.Text)));
textBox1.AppendText(students[students.Count - 1].printinfo());
}
catch (FormatException)
{
MessageBox.Show("uncorrect data");
}
}
}
else
{
MessageBox.Show("wrong data");
}
}
private void button8_Click(object sender, EventArgs e)
{
if (textBox5.Text != "")
{
//bool excep = true;
int serchkey = 0;
try
{
serchkey = Convert.ToInt32(textBox5.Text);
int equal = 0;
Student flag = Serchclass.Liniersearch(students, serchkey, ref equal);
if (flag != null)
{
MessageBox.Show(flag.printinfo() + "number of comparisons: " + equal);
}
else
{
MessageBox.Show("elemnt not exist");
}
}
catch (FormatException)
{
MessageBox.Show("uncorrect data");
}
//int equal = 0;
//Student flag = Serchclass.Liniersearch(students, serchkey, ref equal);
//if (flag != null)
// MessageBox.Show(flag.printinfo() + "number of comparisons: " + equal);
//else
// MessageBox.Show("elemnt not exist");
}
else
{
MessageBox.Show("no key inputed");
}
}