تمرین جلسه 61 (تغییر تعداد اعضای آرایه با توجه به اشتراک کاربر)

internal class Data
{
    public static int row = 0;
    public static int maxrow = 5;
    public static Person[] plist = new Person[21];
}

private void cbxSub_SelectedIndexChanged(object sender, EventArgs e)
{
    switch (cbxSub.SelectedIndex)
    {
        case 0:
            {
                Data.maxrow = 5;
                break;
            }
        case 1:
            {
                Data.maxrow = 10;
                break;
            }
        case 2:
            {
                Data.maxrow = 20;
                break;
            }
    }
}

bool IsValid()
{
    if (txtName.Text != "" && txtLastname.Text != "" && numAge.Value > 0 && Data.row != Data.maxrow)
    {
        return true;
    }
    else
    {
        if (txtName.Text == "")
        {
            MessageBox.Show("Name is required", "Error", MessageBoxButtons.OK);
        }
        else if (txtLastname.Text == "")
        {
            MessageBox.Show("Lastname is required", "Error", MessageBoxButtons.OK);
        }
        else if (numAge.Value == 0)
        {
            MessageBox.Show("Age is required", "Error", MessageBoxButtons.OK);
        }
        else
        {
            MessageBox.Show("The maximum amount of people has been reached", "Error", MessageBoxButtons.OK);
        }
        return false;
    }
}

private void btnSubmit_Click(object sender, EventArgs e)
{
    if (IsValid())
    {
        if (txtphnnumber.Text == "")
        {
            txtphnnumber.Text = "None";
        }
        Person p1 = new();
        p1.Pname = txtName.Text;
        p1.Plastname = txtLastname.Text;
        p1.Pnumber = txtphnnumber.Text;
        p1.Page = int.Parse(numAge.Value.ToString());
        switch (_role)
        {
            case -1:
                {
                    p1.Prole = "Student";
                    break;
                }
            case 0:
                {
                    p1.Prole = "Teacher";
                    break;
                }
            case 1:
                {
                    p1.Prole = "Employee";
                    break;
                }
        }
        Data.plist[Data.row] = p1;
        Data.row++;
        this.Close();
    }
}

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