Question

我正在开发一个小项目，当我尝试从数组生成列表时，创建的控件在添加后会被覆盖，所以我只能看到最后生成的控件。有什么东西我做得不对吗？代码如下：

    string[] radios = { "fillydelphia_radio", "brony_radio", "luna_radio", "alicorn_radio",
                              "sonic_radioboom", "fractured_frequencies", "ponyville_fm",
                              "everypony_radio", "wonderbolt_radio", "best_pony_radio",
                              "pegabit_sounds" };

    public List()
    {
        InitializeComponent();
        generateInfo();
        int i = 0;
        foreach (string l in radios)
        {
            Label tempname = radioName as Label;
            PictureBox templogo = radioLogo as PictureBox;
            templogo.Name = l + "logo";
            templogo.Location = new Point(templogo.Location.X, templogo.Location.Y + i);
            templogo.ImageLocation = RadiosInfo.getRadioInfo(l, "logo");
            tempname.Name = l + "name";
            tempname.Location = new Point(tempname.Location.X, tempname.Location.Y + i);
            tempname.Text = RadiosInfo.getRadioInfo(l, "name");
            SuspendLayout();
            this.Controls.Add(tempname);
            this.Controls.Add(templogo);
            ResumeLayout();
            i += 50;
        }
    }

    private PictureBox radioLogo = new PictureBox();
    private Label radioName = new Label();
    private Label radioArtist = new Label();
    private Label radioSong = new Label();
    private Label radioGenre = new Label();

对于长码和我的拼写错误感到抱歉，第一次在这里发帖，我不是英文。

Answer 1

您正在重复使用每次迭代中的控件（radioName和radioLogo）。因此，您只需更改现有控件的属性，而不是添加一大堆控件。

您要做的是每次都创建新的控件。例如：

foreach (string l in radios)
{
    Label tempname = new Label();
    PictureBox templogo = new PictureBox();
    ....

另一方面，在foreach循环之前调用SuspendLayout（）和在foreach循环之后调用ResumeLayout（）会更有效。

在表单问题中动态添加控件

1 个答案: