如何将文本从动态生成的用户控件传输到文本框

我有一个 Windows 窗体，其中有一个button1当点击时UserControl动态添加到代码中的内容是这样的：

    int c = 0;
    private void button1_Click(object sender, EventArgs e)
    {
        int v;
        v = c++;
        panel1.VerticalScroll.Value = VerticalScroll.Minimum;
        UserControl1 us = new UserControl1();
        us.Name = "us" + v;
        us.Location = new Point(50, 5 + (30 * v));
        us.Tag = btn;
        panel1.Controls.Add(us);
     }

That UserControl包含 4 个控件、2 个组合框和 2 个文本框

i.e combobox1, combobox2, textbox1 and textbox2

同一个表单上有 4 个文本框

still-textbox1, still-textbox2, still-textbox3 and still-textbox4

有button2它将文本传输到组合框和文本框，它们是oldcombobox1, oldcombobox2, oldtextbox1 and oldtextbox2

When button1单击两次将添加两个UserControls到表格。 我想以以下格式传输文本

oldcombobox1.text = still-textbox1.text + "," + combobox1.text(which is dynamically generated) + "," + combobox1.text (which is dynamically generated)等等所有的combobox1来自 UserControl 的文本（动态添加）

oldcombobox2.text = still-textbox2.text + "," + combobox2.text (which is dynamically generated) + "," + combobox2.text (which is dynamically generated)等等所有的combobox2来自 UserControl 的文本（动态添加）

oldtextbox1.text = still-textbox3 + "," + textboox1.text (which is dynamically generated) + "," + textbox1.text (which is dynamically generated)等等所有的textbox1文本来自UserControl（动态添加）

意思是当still-textbox1.text = first当动态时UserControl添加 3 次将包含 3 次combobox1那么oldcombobox1应包含：

first, combobox1.text, combobox1.text, combobox1.text

我已经编写了这段代码，但它不起作用

  foreach (Control ctrl in panel1.Controls)
   {
     if (ctrl is UserControl)
     {
         UserControl1 myCrl = ctrl as UserControl1;
         oldcombobox1.text = still-textbox1.text + "," + myCrl.comboBox1.Text;
         oldcombobox2.Text =still-textbox2.text + "," + myCrl.comboBox2.Text;
         oldtextbox1.Text = still-textbox3.text + "," + myCrl.textBox1.Text;
         oldtextbox2.Text.Text = still-textbox4.text + "," + myCrl.textBox2.Text;
      }
    }

你应该添加到你的班级UserControl1（顺便说一句，伟大的名字;-)）对于您想要从另一个对象访问的每个字符串都是这样的，在本例中是字符串textBox1:

public String FirstTextBoxText 
{
   get { return this.textBox1.Text; }
}

然后你可以在 Form 类中说：

 if (ctrl is UserControl)
 {
     UserControl1 myCrl = ctrl as UserControl1;
     // ...
     oldtextbox1.Text = still-textbox3.text + "," + myCrl.FirstTextBoxText;
 }

它仍然是可怕的代码，但它会起作用。