单选按钮选中时如何使文本框不可见

Question

I am working on C# application. I have 10 radio buttons in a group panel, so now if I only checked the radioButton10 then textBox1 will be visible, if I checked someone of the other radio Buttons (radioButton1 .... radioButton9) then textBox1 should be invisible. I wrote the following code but the textBox1 is still visible. If the code is right where can I wrote it(form load, some function ... etc) if it's NOT, then Please Help.

    public TeamInfoForm()
    {
        InitializeComponent();
        showTeam();
        if (radioButton10 .Checked)
            textBox1 .Visible = true;
        else
            textBox1 .Visible = false;

    }

Answer 1

I think you forgot to implement the event that occur when you check or uncheck the radiobutton. Try to imlpement "OnCheckChanged" event for the radiobutton and you have to set autopostback to true if you want that the event occurs, otherwise the event won't work.

Answer 2

Initially you have to set the Visible property of textBox1 to false in Forms Designer. Otherwise you can set it in FormInitialize() method. Next you have write code like below

    public void ToggleTextBox()
    {
        textBox1.Visible = radioButton3.Checked;
    }

    private void radioButton1_CheckedChanged(object sender, EventArgs e)
    {
        ToggleTextBox();
    }

    private void radioButton2_CheckedChanged(object sender, EventArgs e)
    {
        ToggleTextBox();
    }

    private void radioButton3_CheckedChanged(object sender, EventArgs e)
    {
        ToggleTextBox();
    }