arrays - 如何从 C# 中的控件数组中读取数据

Question

我已将以下轨迹栏控件添加到标签页“tab1”中：

               TrackBar[] tbs = new TrackBar[nooftbsneeded];


               // Add TrackBars
                TrackBar tbx = new TrackBar();
                tbx.Location = new Point(28, 150 + (i * 200));
                tbx.Size = new Size(686, 45);
                tbx.Minimum = 0;
                tbx.Maximum = 16;
                tbx.SmallChange = 1;
                tbx.LargeChange = 2;
                tbx.Value = 8;

                // create events (using a lambda expression) for each trackbar to change values.
                tbx.Scroll += (o, a) =>
                {
                    // Update text values
                    if (tbx.Value == 0)
                    {
                        label3x.Text = "Extremely Better";
                        label4x.Text = "";
                    }
                    if (tbx.Value == 1)
                    {
                        label3x.Text = "Extremely Better";
                        label4x.Text = "";
                    }
                    if (tbx.Value == 2)
                    {
                        label3x.Text = "Very Strongly Better";
                        label4x.Text = "";
                    }
                    if (tbx.Value == 3)
                    {
                        label3x.Text = "Very Strongly Better";
                        label4x.Text = "";
                    }
                    if (tbx.Value == 4)
                    {
                        label3x.Text = "Strongly Better";
                        label4x.Text = "";
                    }
                    if (tbx.Value == 5)
                    {
                        label3x.Text = "Strongly Better";
                        label4x.Text = "";
                    }
                    if (tbx.Value == 6)
                    {
                        label3x.Text = "Moderately Better";
                        label4x.Text = "";
                    }
                    if (tbx.Value == 7)
                    {
                        label3x.Text = "Moderately Better";
                        label4x.Text = "";
                    }
                    if (tbx.Value == 8)
                    {
                        label3x.Text = "Equal";
                        label4x.Text = "Equal";
                    }
                    if (tbx.Value == 9)
                    {
                        label3x.Text = "";
                        label4x.Text = "Moderately Better";
                    }
                    if (tbx.Value == 10)
                    {
                        label3x.Text = "";
                        label4x.Text = "Moderately Better";
                    }
                    if (tbx.Value == 11)
                    {
                        label3x.Text = "";
                        label4x.Text = "Strongly Better";
                    }
                    if (tbx.Value == 12)
                    {
                        label3x.Text = "";
                        label4x.Text = "Strongly Better";
                    }
                    if (tbx.Value == 13)
                    {
                        label3x.Text = "";
                        label4x.Text = "Very Strongly Better";
                    }
                    if (tbx.Value == 14)
                    {
                        label3x.Text = "";
                        label4x.Text = "Very Strongly Better";
                    }
                    if (tbx.Value == 15)
                    {
                        label3x.Text = "";
                        label4x.Text = "Extremely Better";
                    }
                    if (tbx.Value == 16)
                    {
                        label3x.Text = "";
                        label4x.Text = "Extremely Better";
                    }


                };

                tbs[i] = tbx;
                tab1.Controls.Add(tbs[i]);

我现在如何获取轨迹栏的各个值？

我已经尝试了我能想到的所有调用组合。我只是不知道如何引用单独的轨迹栏控件。

Answer 1

foreach(var control in tab1.Controls){

    if(control.GetType() == typeof(TrackBar)){
       object value = ((TrackBar)control).Value; 
    }
}

Answer 2

确保这是在您的班级级别声明的：

TrackBar[] tbs;

然后，在您的方法中，只需初始化它（不重新声明它）：

tbs = new TrackBar[nooftbsneeded];
// ... Create track bars

此时，您可以稍后通过以下方式读取值：

var value = tbs[3].Value;