1

我以编程方式向 C# 表单添加了几个按钮，但只有我通过设计器添加的按钮实际显示出来。尽管如此，其余的仍然是不可见的。在此之前我正在执行很多操作；这可能是原因吗？

public FormView
{
    List<Button> listOfButtons = new List<Button>();
    int frame = 0;
    for (int i = 0; i < 36; i++)
    {
        listOfButtons.Add(new Button());
    }
    listOfButtons[4 * frame].Width = 92;
    listOfButtons[4 * frame].Height = 92;
    listOfButtons[4 * frame].BackColor = Color.Red;
    listOfButtons[4 * frame].BackgroundImage = System.Drawing.Image.FromFile("image.png");
    listOfButtons[4 * frame].BackgroundImageLayout = ImageLayout.Stretch;
    listOfButtons[4 * frame].ImageAlign = ContentAlignment.MiddleCenter;
    listOfButtons[4 * frame].TextAlign = ContentAlignment.TopCenter;
    listOfButtons[4 * frame].Location = new Point(1, 0);
    listOfButtons[4 * frame].Click += new EventHandler(this.button1_Click);

    listOfButtons[4 * frame + 1].Width = 92;
    listOfButtons[4 * frame + 1].Height = 92;
    listOfButtons[4 * frame + 1].BackColor = Color.Red;
    listOfButtons[4 * frame + 1].BackgroundImage = System.Drawing.Image.FromFile("image.png");
    listOfButtons[4 * frame + 1].BackgroundImageLayout = ImageLayout.Stretch;
    listOfButtons[4 * frame + 1].ImageAlign = ContentAlignment.MiddleCenter;
    listOfButtons[4 * frame + 1].TextAlign = ContentAlignment.TopCenter;
    listOfButtons[4 * frame + 1].Location = new Point(1, 99);
    listOfButtons[4 * frame + 1].Click += new EventHandler(this.button2_Click);

    listOfButtons[4 * frame + 2].Width = 92;
    listOfButtons[4 * frame + 2].Height = 92;
    listOfButtons[4 * frame + 2].BackColor = Color.Red;
    listOfButtons[4 * frame + 2].BackgroundImage = System.Drawing.Image.FromFile("image.png");
    listOfButtons[4 * frame + 2].BackgroundImageLayout = ImageLayout.Stretch;
    listOfButtons[4 * frame + 2].ImageAlign = ContentAlignment.MiddleCenter;
    listOfButtons[4 * frame + 2].TextAlign = ContentAlignment.TopCenter;
    listOfButtons[4 * frame + 2].Location = new Point(99, 0);
    listOfButtons[4 * frame + 2].Click += new EventHandler(this.button3_Click);

    listOfButtons[4 * frame + 3].Width = 92;
    listOfButtons[4 * frame + 3].Height = 92;
    listOfButtons[4 * frame + 3].BackColor = Color.Red;
    listOfButtons[4 * frame + 3].BackgroundImage = System.Drawing.Image.FromFile("image.png");
    listOfButtons[4 * frame + 3].BackgroundImageLayout = ImageLayout.Stretch;
    listOfButtons[4 * frame + 3].ImageAlign = ContentAlignment.MiddleCenter;
    listOfButtons[4 * frame + 3].TextAlign = ContentAlignment.TopCenter;
    listOfButtons[4 * frame + 3].Location = new Point(99, 99);
    listOfButtons[4 * frame + 3].Click += new EventHandler(this.button4_Click);


    listOfButtons[4 * frame].Visible = true;
    listOfButtons[4 * frame + 1].Visible = true;
    listOfButtons[4 * frame + 2].Visible = true;
    listOfButtons[4 * frame + 3].Visible = true;
    InitializeComponent();
}

有任何想法吗？

4

3 回答 3

3

我没有看到您将按钮添加到任何父控件。你应该做这样的事情......

Form1.Controls.Add(listOfButtons[4 * frame]); // and so on...
于 2013-07-16T18:23:54.687 回答
1

首先在初始化控件时在 InitalizeComponent 之后执行所有这些操作。

然后将控件添加到表单上的某个容器中。例如

       yourForm.Controls.Add(controlsToAdd);

如果仍然无法查看，可能是由于多种原因，例如您的按钮超出了表单的范围，或者它们与其他控件重叠。尝试在表单边界内为您动态添加的任何一个按钮分配一个固定位置。

于 2013-07-16T18:20:53.813 回答
0

您应该将非设计器控件添加到Controls集合中，可以是表单之一，也可以是另一个控件。

于 2013-07-16T18:22:44.983 回答