Dynamically provide buttons

Question

insert the description of the image here.You can find out how I can through a textbox insert a numerical value, and with this value x make visible x buttons of y.

ex. if I type 3 in the textbox, the button 1, 2 and 3 will be visible

I am developing a form in which save in an sql datatable, possible dates and number of times for each date (ie if set 3, all these dates will have 3 times). In another form I will schedule the events, and I wanted to make available the dates of the table and the times, as it was registering the events, they would appear as busy or free. Seat marking type on aeroplanes.

Answer 1

If you want to show x TextBox, depending on a value, you can create an array to store and assign the Visible correct for each one through a loop/loop. This way it becomes a little more flexible and easy to expand for more elements.

Example:

public partial class Form1 : Form
{
    private TextBox[] botoes; //array de textboxes

    public Form1()
    {
        InitializeComponent();

        //colocar no array as textboxes que quer e pela ordem certa
        botoes = new TextBox[] { textBox1, textBox2, textBox3 };
    }

    //este método mostra a quantidade de textboxes correspondente ao parametro passado
    private void Mostrar(int quantidade)
    {
        for (int i = 0; i < botoes.Length; ++i)
        {
            botoes[i].Visible = (i < quantidade) ? true : false;
        }
    }

So for what I had said

If I type 3 in the textbox, the button 1, 2 and 3 will be visible

Just call the method with that value: Mostrar(3);.

Note that the same logic applies to Button or any other form element that suits.

Answer 2

Thanks for the help, with your help and searches I got the desired result:

namespace teste3 { public partial class Form1 : Form { int Dias; int Horarios;

    private Button[][] botoes = new Button[3][];
    private GroupBox[] grupo = new GroupBox[3];

    int quantidade;

    public Form1()
    {
        InitializeComponent();
        botoes[0] = new Button[5] { btnA1, btnA2, btnA3, btnA4, btnA5 };
        botoes[1] = new Button[5] { btnB1, btnB2, btnB3, btnB4, btnB5 };
        botoes[2] = new Button[5] { btnC1, btnC2, btnC3, btnC4, btnC5 };

        grupo = new GroupBox[] { group_1, group_2, group_3 };
    }

    private void btn_Verificar_Click(object sender, EventArgs e)
    {
        Dias = int.Parse(text_Dias.Text);
        Horarios = int.Parse(text_Bancas.Text);
        EscondeBotoes();

        // Display the array elements:
        for (int i = 0; i < Dias; i++)
        {
            grupo[i].Visible = true;

            for (int j = 0; j < Horarios; j++)
            {
                botoes[i][j].Visible = true;
            }
        }
    }

    private void Form1_Load(object sender, EventArgs e)
    {

    }

    private void EscondeBotoes()
    {
        for (int i = 0; i < 3; i++)
        {
            grupo[i].Visible = false;

            for (int j = 0; j < 5; j++)
            {
                botoes[i][j].Visible = false;
            }
        }            
    }
}

}