在C#中禁用和启用按钮

Question

我正在做一些相当简单的事情,我认为它会是.我想要的是当点击button1我希望它禁用button1并启用button2.我得到以下错误:错误1只能将赋值,调用,递增,递减和新对象表达式用作语句.

{
public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void button3_Click(object sender, EventArgs e)
    {
        Close();

    }

    private void Form1_Load(object sender, EventArgs e)
    {

    }
    private void RandomNumber(int min, int max)
    {
        int num = new Random().Next(min, max);
         label1.Text = num.ToString();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        RandomNumber(0,99);
        button2.Enabled == true ;
        if (textBox1.Text == label1.Text)
            MessageBox.Show("Winner");

    }

    private void label1_Click(object sender, EventArgs e)
    {

    }

    private void textBox1_TextChanged(object sender, EventArgs e)
    {

    }

    private void button2_Click(object sender, EventArgs e)
    {

    } 

}
}

Answer 1

在你的button1_click函数中,你正在使用'==' button2.Enabled == true;

这应该是 button2.Enabled = true;

Answer 2

button2.Enabled == true ;一定是button2.Enabled = true ;.

你有一个比较==你应该有一个分配=.

Answer 3

button2.Enabled == true ;

这就是问题 - 它应该是:

button2.Enabled = true ;

Answer 4

button2.Enabled == true ;

应该

button2.Enabled = true ;

Answer 5

改变这个

button2.Enabled == true

至

button2.Enabled = true;