c#通过复选框删除动态文本框

public void CreateTextBox(int i, StringReader sr)
        {
        ProductForm form2 = new ProductForm();
        _cb = new CheckBox[i];
        form2.Visible = true;
        form2.Activate();
        int x = 10;
        int y = 30;
        int width = 100;
        int height = 20;

        for (int n = 0; n < i; n++)
        {
            String line = sr.ReadLine();
            String[] line_ = line.Split(new char[] {''t'});
            String cbName = "chkBox_" + n.ToString();

            _cb[n] = new CheckBox();
            _cb[n].Name = cbName;
            _cb[n].Location = new Point(2, y);
            _cb[n].Checked = false;
            form2.Controls.Add(_cb[n]);
            if (line.Length > 3)
            {
                for (int row = 0; row < 4; row++)
                {
                    String name = "txtBox_" + row.ToString();
                    TextBox tb = new TextBox();
                    tb.Name = name;
                    tb.Text = line_[row].ToString();
                    tb.Location = new Point(x, y);
                    tb.Height = height;
                    if (row == 1)
                    {
                        tb.Width = width * row;
                    }
                    if (row == 3)
                    {
                        tb.Width = width * 5;
                    }
                    else
                    {
                        tb.Width = width - 20;
                    }
                    x += 10 + width;
                    form2.Controls.Add(tb);
                }
            }
            x = 10;
            y += 25;
        }
    }
    private void DeleteTextBoxButton_Click(object sender, EventArgs e)
    {
        //Here should I add a code in order to delete dynamically created 
        //textboxes by clicking checkbox and button
    }
}

不确定你的问题。但如果我是对的，这可能会奏效。

解决方案1:在创建所有控件时，将它们添加到List<Controls>。当您选中复选框以删除该行时，获取复选框的名称，在List<Controls>中搜索它。这样就能获得选中复选框的行索引。现在删除这些行的控件。

解决方案2:在TablelayoutPanel中创建控件，一切都会很容易。

编辑

复制粘贴form1中的所有内容，使用btn_click作为按钮的事件处理程序。让窗体的大小稍微大一点。现在一切都好了。如果不行，请告诉我。

class MyControl
{
    public TextBox txt1 { get; set; }
    public TextBox txt2 { get; set; }
    public TextBox txt3 { get; set; }
    public TextBox txt4 { get; set; }
    public CheckBox cb { get; set; }
    public MyControl(TextBox txt1, TextBox txt2, TextBox txt3, TextBox txt4, CheckBox cb)
    {
        this.txt1 = txt1;
        this.txt2 = txt2;
        this.txt3 = txt3;
        this.txt4 = txt4;
        this.cb = cb;
    }
}

    List<MyControl> list = new List<MyControl>();
    public int x = 50, n = 1;
    TextBox txtTemp, txt1, txt2, txt3, txt4;
    CheckBox cbTemp;
    private void btn_Click(object sender, EventArgs e)
    {
        txtTemp = new TextBox();
        txtTemp.Location = new System.Drawing.Point(10, x);
        txtTemp.Name = "txt1_" + n;
        txt1 = txtTemp;
        txtTemp = new TextBox();
        txtTemp.Location = new System.Drawing.Point(120, x);
        txtTemp.Name = "txt2_" + n;
        txt2 = txtTemp;
        txtTemp = new TextBox();
        txtTemp.Location = new System.Drawing.Point(230, x);
        txtTemp.Name = "txt3_" + n;
        txt3 = txtTemp;
        txtTemp = new TextBox();
        txtTemp.Location = new System.Drawing.Point(350, x);
        txtTemp.Name = "txt4_" + n;
        txt4 = txtTemp;
        cbTemp = new CheckBox();
        cbTemp.Name = "cb1_" + n;
        cbTemp.Enter += new EventHandler(cbTemp_Enter);
        cbTemp.Location = new System.Drawing.Point(490, x);
        this.Controls.Add(txt1);
        this.Controls.Add(txt2);
        this.Controls.Add(txt3);
        this.Controls.Add(txt4);
        this.Controls.Add(cbTemp);
        list.Add(new MyControl(txt1, txt2, txt3, txt4, cbTemp));
        x += 40;
        n++;
    }
    void cbTemp_Enter(object sender, EventArgs e)
    {
        if ((MessageBox.Show("Are you Sure?", "Warning", MessageBoxButtons.YesNo)) == DialogResult.No)
            return;
        CheckBox cbMain = (CheckBox)sender;
        int index = Search(cbMain);
        this.Controls.Remove(list[index].txt1);
        this.Controls.Remove(list[index].txt2);
        this.Controls.Remove(list[index].txt3);
        this.Controls.Remove(list[index].txt4);
        this.Controls.Remove(list[index].cb);
    }
    private int Search(CheckBox cbMain)
    {
        int temp = 0;
        foreach (MyControl item in list)
        {
            if(cbMain.Name == item.cb.Name)
                temp = list.IndexOf(item);
        }
        return temp;
    }

对于WinForms，我建议将生成的TextBoxes放入CheckBox的Tag字段中。然后保存所有复选框的管理列表。一旦他们单击删除按钮，就遍历checkbox集合。如果它们的状态是选中的，将TextBox从Tag字段中拉出，从表单集合中移除，然后删除它。

注意:此代码未经测试，但原则上应该可以工作。

UPDATE:阅读您的最新评论，而不是在标签中存储单个文本框，只需创建另一个列表并将整个列表存储在标签中。然后遍历delete方法中的那些。

private List<CheckBox> _checkboxes = new List<CheckBox>();
public void CreateTextBox( int i, StringReader r )
{
   // ... do your stuff here
   _cb[n].Tag = tb;
   // ... finish up
   _checkboxes.Add( _cb[n] );
}
public void DeleteTextBoxButton_Click( object sender, EventArgs e )
{
   foreach( var cb in _checkboxes )
   {
       if( cb.Checked )
       {
           TextBox tb = cb.Tag as TextBox;
           if( tb != null )
           {
              form2.Controls.Remove( tb );
           }
        }
   }
}