TextBox Dynamics

[stefano.a.feltre]

i make a program that create a number of texboxes equal of number that i insert in the first textbox,after i received the others number of the other texboxes in input and i make the sum of these numbers
The problem is that i insert in the first textbox "5" and in the other 5 texboxes i insert
"9" "8" "7" "6" "5" the output is 25

public partial class Multinomiale : Form
    {
        long N;
        int[] Vettore;
        TextBox txtTemp;
        public Multinomiale()
        {
            InitializeComponent();
        }

        private void button5_Click(object sender, EventArgs e)
        {
            Form_capitolo_1 f = new Form_capitolo_1();
            f.Show();
            this.Visible = false;
        }
        private void button1_Click_1(object sender, EventArgs e)
        {
            bool Tn = Controllo_TextBox(textBox1.Text);
            if (Tn == false)
            {
                MessageBox.Show("'n' deve essere un numero intero maggiore di 0!");
                textBox1.Text = "";
            }
            else if (Tn == true)
            {
                N = Convert.ToInt32(textBox1.Text);
                Vettore=new int[N];
                for (int i = 2; i < N+2; i++)
                {
                    string textname = "textBox_f" + i;
                    txtTemp = new TextBox();
                    txtTemp.Location = new System.Drawing.Point(50, 200 + 26 * i);
                    txtTemp.Size = new System.Drawing.Size(200, 25);
                    txtTemp.Name = textname;
                    txtTemp.Width = 100;
                    this.Controls.Add(txtTemp);
                }
                for (int i = 2; i < N + 2; i++)
                {
                    string labelname = "label_f" + i;
                    Label labelTemp = new Label();
                    labelTemp.Location = new System.Drawing.Point(15, 200 + 26 * i);
                    labelTemp.Text = " f" + (i - 1) + "=";
                    labelTemp.Font = new Font(labelTemp.Font, FontStyle.Bold);
                    labelTemp.Name = labelname;
                    this.Controls.Add(labelTemp);
                }
                for (int i = 2; i < N + 2; i++)
                {
                    string textname = "textBox_P" + i;
                    TextBox txtTemp = new TextBox();
                    txtTemp.Location = new System.Drawing.Point(200, 200 + 26 * i);                    
                    txtTemp.Size = new System.Drawing.Size(400, 25);
                    txtTemp.Name = textname;
                    txtTemp.Width = 100;
                    this.Controls.Add(txtTemp);     
                }
                label1.Enabled = false;
                textBox1.Enabled = false;
                button1.Enabled = false;
            }
        }

        static bool Controllo_TextBox(string S)
        {
            bool T = true;
            if (S[0] == 0)
                T = false;
            for (int i = 1; i < S.Length; i++)
            {
                if (S[i] != '0' && S[i] != '1' && S[i] != '2' && S[i] != '3' && S[i] != '4' && S[i] != '5' && S[i] != '6' && S[i] != '7' && S[i] != '8' && S[i] != '9')
                    T = false;
            }
            return T;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            int somma = 0;
            for (int i = 0; i < N; i++)
            {
                Vettore[i] = Convert.ToInt32(txtTemp.Text);
                somma+= Vettore[i];
            }
            label2.Text = Convert.ToString(somma);
        }

[Momerath]

in line 83 you are converting txtTemp.Text to an int, shouldn't you be converting your new textboxes.Text to ints?

[ddanbe]

You are adding 5 times the number 5 which adds up perfectly to 25.(See Momerath)
Computing machines are very dumb, the only do what you ask them to do. :)

[Michael27]

After you create textboxes use the the foreach to loop through all controls, check if control is textbox, parse using TryParse to the desired type and add them together

[Momerath]

That would work if he only had the textboxes on the screen that he wanted to add, but from his code you can see he has at least one other.