转换页面以后如何让按钮保持红色？

Question

哈喽，哈喽

    早上好啊

    现在遇到这么一个问题。

    1）我在form1中做了一个白色的按钮，点下去以后呢，这个按钮就变成红色了，这个是正常的。

   2）但是，我一旦转换页面进入了form2窗体后，再返回form1窗体，发现，这个按钮又变成白色了。我要再次点击它才能变为红色，但是我再转换页面回来，它又恢复白色了

  我的问题就是，不管我如何转换页面，我希望只点击一次按钮，她就一直保持红色。

  private void button5_Click(object sender, EventArgs e)
        {

            button5.BackColor = Color.Red;
        }

Answer 1

Hi,

你能把你的代码放到one drive 上面吗？ 请不要包含私人信息。 我这边测试是没有问题的。

你可以看我的截图。

Best Regards,

Hart

---

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Answer 2

这是因为你转到其它页面后，包含红色按钮的页面已经销毁，再次回到此页面时，是需要重新创建此页面对象，自然它就是新创建时的白色。

考虑把包含红色按钮的页面加到缓存中，每次从缓存中获取此页面实例，获取不到则创建，能获取到则直接载入缓存中的页面对象。

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专注于.NET ERP/CRM开发框架，C/S架构，SQL Server + ORM(LLBL Gen Pro) + Infragistics WinForms

Answer 3

亲爱的版主，您好

     1） one drive  是什么呀?如何操作才能把代码放在one drive 上面呢？

     2)你演示的是没有问题的，但是不知道你的 代码是怎么写的，你写的这个代码可否插入进来，我看下是怎么写的。

Answer 4

可否把代码写出来呢？

Answer 5

Hi,

代码写的简单，粗暴。

private void button1_Click(object sender, EventArgs e)
        {
            button1.BackColor = Color.Red;

        }

        

        private void button2_Click(object sender, EventArgs e)
        {
            Form form2 = new Form();
            form2.Show();
        }

Best Regards,

Hart

---

Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to MSDN Support, feel free to contact [e-mail].

Answer 6

当你打开另外一个窗体的时候，form1没有被hide()

我需要的是当打开另外一个窗体的时候form1.hide();

 private void button1_Click(object sender, EventArgs e)
        {
            this.Hide();
            Form2 frm2 = new Form2();
            frm2.Show();

        }

  private void button5_Click(object sender, EventArgs e)
        {

            button5.BackColor = Color.Red;
        }
      

Answer 7

代码应该如何写呢？帮忙写下代码吧。

Answer 8

Hi,

不明白你的需求，不明白你最终想要实现什么？ 几个form 这些form的先后顺序，这些都是不知道的。

不过我觉得你带有红色button 按钮的form，肯定是被你销毁了，不然颜色会一直是红色。

Best Regards,

Hart

---

Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to MSDN Support, feel free to contact [e-mail].

Answer 9

我知道为什么了，但是不知道该怎么解决这个问题：

  我在form2窗体返回按钮的代码里创建了新的form1的对象，所以返回了新创建的form1窗体，所以按钮是白色的，而老的form1窗体按钮仍然是红色的，再返回时就有2 个form1窗体，如果我不重新创建form1窗体，我就没法返回到form1窗体。

我该怎么办呢？

     private void button1_Click(object sender, EventArgs e)
        {
            this.Hide();
            Form2 frm2 = new Form2();
            frm2.Show();

        }

        private void button1_Click_1(object sender, EventArgs e)
        {
            this.Close();
            Form1 frm1 = new Form1();
            frm1.Show();
              
             
        }

Answer 10

是这样的，但是我应该如何写代码才能保持这个按钮为红色的呢？

Answer 11

Hi,

我写了一个demo，演示效果可以看我的动态图。

代码如下：

  public Form1()
        {
            InitializeComponent();
        }

        Form form3 = new Form();
        private void button1_Click(object sender, EventArgs e)
        {
            button1.BackColor = Color.Red;
            Button btn = new Button();
            btn.Text = "show";
            btn.Size = new Size(100, 50);
            btn.Location = new Point(100, 100);
            btn.Click += Btn_Click;
            form3.Controls.Add(btn);

            form3.Show();
            this.Hide();

           
        }

        private void Btn_Click(object sender, EventArgs e)
        {
            this.Show();
        }

Best Regards,

Hart

---

Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to MSDN Support, feel free to contact [e-mail].

Answer 12

亲爱的版主，您好

     1） one drive  是什么呀?如何操作才能把代码放在one drive 上面呢？

one drive 就是类似百度云这种，当然还有更多功能，你可以把代码放在上面，再把链接给别人，别人就能看到这个内容。

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Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to MSDN Support, feel free to contact [e-mail].