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警告:嵌入式软件开发者试图构建 PC 软件!

我正在尝试连接一个通过串行接口与 PC 通信的硬件。PC 软件 (C#) 定期发送一个字节数组,我想使用一些轨迹栏来调整它。

我没有在设计视图上添加 8 个轨迹栏,而是添加了一个来帮助我对齐它,然后我创建了一个列表,我在加载时填充它,如下所示:

public partial class FormDmxTemplate : Form
{
    // Controls
    // Create a list of tracbars.
    List<TrackBar> trackBarDmx = new List<TrackBar>();

    public FormDmxTemplate()
    {
        InitializeComponent();            
    }

    private void FormDmxTemplate_Load(object sender, EventArgs e)
    {
        // Add first instance on the list
        trackBarDmx.Add(trackBarDmx1);
        // Generate 7 more, 8 total, of each
        // Copy settings, and place them next to each other
        for (int i = 1; i < 8; i++)
        {
            // Trackbars
            trackBarDmx.Add(new TrackBar());
            trackBarDmx[i].TickStyle   = trackBarDmx[0].TickStyle;
            trackBarDmx[i].Orientation = trackBarDmx[0].Orientation;
            trackBarDmx[i].Minimum     = trackBarDmx[0].Minimum;
            trackBarDmx[i].Maximum     = trackBarDmx[0].Maximum;
            trackBarDmx[i].Size        = new System.Drawing.Size(trackBarDmx[0].Size.Width, trackBarDmx[0].Size.Height);
            trackBarDmx[i].Location    = new System.Drawing.Point(trackBarDmx[i-1].Location.X + 60, trackBarDmx[0].Location.Y);
            this.Controls.Add(trackBarDmx[i]);
        }
    }
}

是否可以为所有 List 成员举办这样的活动?

private void trackBarDmx1_Scroll(object sender, EventArgs e)
{

}

这意味着我想更新我的字节数组中的相关字节以匹配 TrackBar 值,如果可能的话使用事件。

注意:这是一个表单模板,我通过另一个表单加载和关闭。

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3 回答 3

2

您可以在创建 TrackBar 时订阅事件。所有人都可以有相同的事件处理程序:

trackBarDmx[i].Scroll += trackBarDmx1_Scroll;

然后在处理程序中,您可以找出哪个是这个 TrackBar 以及它在哪个索引处(如有必要)

private void trackBarDmx1_Scroll(object sender, EventArgs e)
{
    TrackBar bar = sender as TrackBar;
    int trackBarIndex = this.trackBarDmx.IndexOf(bar);
}
于 2014-02-24T12:16:14.760 回答
1

你可以这样做 :

    for (int i = 1; i < 8; i++)
    {
       // Trackbars
       trackBarDmx.Add(new TrackBar());
       trackBarDmx[i].TickStyle   = trackBarDmx[0].TickStyle;
       trackBarDmx[i].Orientation = trackBarDmx[0].Orientation;
       trackBarDmx[i].Minimum     = trackBarDmx[0].Minimum;
       trackBarDmx[i].Maximum     = trackBarDmx[0].Maximum;
       trackBarDmx[i].Size        = new System.Drawing.Size(trackBarDmx[0].Size.Width, trackBarDmx[0].Size.Height);
       trackBarDmx[i].Location    = new System.Drawing.Point(trackBarDmx[i-1].Location.X + 60, trackBarDmx[0].Location.Y);
       this.Controls.Add(trackBarDmx[i]);

       // Notice no number in the handler name
       trackBarDmx[i].Scroll += trackBarDmx_Scroll;
     }

现在在处理程序中,最简单的事情是:

private void trackBarDmx_Scroll(object sender, EventArgs e)
{

   var tb = sender as TrackBar;

   if(sender == null)
   {return;}

   switch (sender.Name)
   {

       case "trackBarDmx1_Scroll" :
       // handle changes to bar 1
       break;

       // and so on

   }

}
于 2014-02-24T12:22:04.597 回答
1

不确定我是否理解您要达到的目标。这是否满足您的需求:

for (int i = 0; i < 7; i++)
            {
                TrackBar trackBar = new TrackBar();
                trackBar.Tag = i;
                // Other properties
                trackBar.Scroll += new EventHandler(trackBar_Scroll);
            }

在处理程序中:

void trackBar_Scroll(object sender, EventArgs e)
        {
           // Get the trackbar
            TrackBar current = sender as TrackBar;
            // Do something here. Use tag property to identify which byte array should be changed
        }

顺便说一句,你真的需要保留列表TrackBar吗?

于 2014-02-24T12:17:47.870 回答