Event of RadioButtons

It's my problem.

I have a few RadioButtons. If i click on first开发者_C百科 Radiobutton on form create TextBox, if click on second - create second TextBox and if i click again on first RadioButton, again one TextBox,is it possible?

Give me idea, please.

And without property visible.

There isn't much point in dynamically creating and destroying controls here. It is just a headache, ensuring the position, size and tab order is correct. Just make the text box visible if you like the choice:

    private void radioButton2_CheckedChanged(object sender, EventArgs e) {
        textBox1.Visible = radioButton2.Checked;
    }

Set the textbox' Visible property to False in the designer.

Try something like this (this is only one of them):

TextBox t;

private void radio_CheckedChanged(object sender, System.EventArgs e)
{
    if (radio.Checked) {
          t = new TextBox();
          t.Top = radio.Top;
          t.Left = radio.Left + radio.Width;
          this.Controls.Add(t);
          t.Show();
        } else {
          if (t!=null)t.Dispose();
        }       
}

See Only foreach and void TextBoxes.

using System;
    using System.Text;
    using System.Windows.Forms;
    using System.Drawing;


class MyForm : Form
{
    private const int 
        HeightTextBox = 40, WidthTextBox = 25, //размер textboxes
        DistanceBetweenTexBoxHeight = 25, DistanceBetweenTexboxWigth = 25; //растояние между ними
    private int DimentionalTextBox = 3;
    private const int
        RadioButtonNumbers = 3, // количество радио кнопок
        DistanceBetweenRadiobutton = 50,
        RadioButtonFirstGroupStartPositionX = 5,
        RadioButtonSecondGroupStartPositionX = 0,
        RadioButtonFirstGroupStartPositionY = 0,
        RadioButtonSecondGroupStartPositionY = 0,
        RadioButtonSize = 25;

    public MyForm()
    {
        //Size of window
        ClientSize = new System.Drawing.Size(7 * HeightTextBox + 8 * DistanceBetweenTexBoxHeight,
            7 * WidthTextBox + 8 * DistanceBetweenTexboxWigth);

        //Create RaioButton
        int x = RadioButtonFirstGroupStartPositionX;
        int y;
        RadioButton[] DimRadioButtons = new RadioButton[RadioButtonNumbers];
        for (int i = 0; i < RadioButtonNumbers; i++)
        {
            DimRadioButtons[i] = new RadioButton();
            DimRadioButtons[i].Name = "RadioButton" + (i + 2);
            DimRadioButtons[i].Text = Convert.ToString(i + 2);
            DimRadioButtons[i].SetBounds(x, RadioButtonFirstGroupStartPositionY, RadioButtonSize, RadioButtonSize);
            x += DistanceBetweenRadiobutton;
            Controls.Add(DimRadioButtons[i]);
        }

        //Watch dimention
        // And catch even click on RadioButton
        foreach (var a in this.Controls)
        {
            if (a is RadioButton)
            {
                if (((RadioButton)a).Checked)
                {
                    DimentionalTextBox = Convert.ToInt16(((RadioButton)a).Text);
                    ((RadioButton)a).Click += new EventHandler(this.TextBoxes);
                }
            }
        }
    }

    // Create-Delete TextBoxes
    private void TextBoxes(object sender, EventArgs e)
    {
        RadioButton rb_click = (RadioButton)sender;
        int x = RadioButtonFirstGroupStartPositionX;
        int y = 30;
        int dim = Convert.ToInt16(rb_click.Text);
        TextBox[,] MatrixTextBoxes = new TextBox[dim, dim];
        for (int i = 0; i < dim; i++)
        {
            for (int j = 0; j < dim; j++)
            {
                MatrixTextBoxes[i, j] = new TextBox();
                MatrixTextBoxes[i, j].Top = rb_click.Top;
                MatrixTextBoxes[i, j].Name = "MatrixTextBox" + i + j;
                MatrixTextBoxes[i, j].Text = i + " " + j;
                MatrixTextBoxes[i, j].SetBounds(x, y, WidthTextBox, HeightTextBox);
                x += DistanceBetweenTexboxWigth;
                this.Controls.Add(MatrixTextBoxes[i, j]);
                MatrixTextBoxes[i, j].Show();
            }
            y += DistanceBetweenTexBoxHeight;
            x = RadioButtonFirstGroupStartPositionX;
        }
    }
}


class MyClassMain : MyForm
{
    public static void Main()
    {
        Application.Run(new MyClassMain());
    }
}