c# - 通过单击按钮更改控件的可见性

Question

我正在用c#开发一个项目。我的表单中有一个文本框，下面有一个按钮。我想通过单击按钮来更改文本框的可见性。例如，当表单加载时，文本框是隐藏的。当用户单击按钮，文本框出现在表单上。然后用户第二次再次单击它，文本框再次隐藏。我应该怎么做。请帮助我。

感谢您的帮助。

Answer 1

private void button1_Click(object sender, EventArgs e)
{
    textBox1.Visible = !textBox1.Visible;
}

Answer 2

像这样的事情应该这样做

        private void button1_Click(object sender, EventArgs e)
        {
            tbProgress.Visible = !tbProgress.Visible;
        }

Answer 3

    bool showtext = false;

    public Form1()
    {
        InitializeComponent();
        textBox1.Visible = showtext;
        button1.Click += button1_Click;
    }

    private void button1_Click(object sender, EventArgs e)
    {
        showtext = !showtext;
        textBox1.Visible = showtext;
    }

Answer 4

    public partial class Form1 : Form
    { 
        bool buttonvisible = false;

        public Form1()
        {
            InitializeComponent();
            button1.Visible = false;
            button1.Click += button1_Click;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if(buttonvisible)
            {
                buttonvisible = false;
                button1.Visible = false;
            }
            else
            {
                buttonvisible = true;
                button1.Visible = true;
            }
        }
    }

或者简单，但不太可编辑：

private void button1_Click(object sender, EventArgs e)
{
    button1.Visible = !button1.Visible;
}