使用 C# 添加和删除动态控件 Windows 窗体

发布于 2024-08-29 15:06:53 字数 1210 浏览 7 评论 0原文

我的 Windows 窗体表单中有三个选项卡。根据 TabPages[0] 中所选的 RadioButton，我在相关 TabPage 上添加了一些动态控件。在 Button_Click 事件中添加了控件，但问题是我无法从其他（不相关的）TabPage 中删除动态添加的控件。

这是我的代码：

Label label235 = new Label();
TextBox tbMax = new TextBox();
label235.Name = "label235";
tbMax.Name = "txtBoxNoiseMax";
label235.Text = "Noise";
tbMax.ReadOnly = true;
label235.ForeColor = System.Drawing.Color.Blue;
tbMax.BackColor = System.Drawing.Color.White;
label235.Size = new Size(74, 13);
tbMax.Size = new Size(85, 20);

if (radioButton1.Checked)
{
    label235.Location = new Point(8, 476);
    tbMax.Location = new Point(138, 473);

    tabControl.TabPages[1].Controls.Add(label235);
    tabControl.TabPages[1].Controls.Add(tbMax);

    tabControl.TabPages[2].Controls.RemoveByKey("label235");
    tabControl.TabPages[2].Controls.RemoveByKey("tbMax");
}
else
{
    label235.Location = new Point(8, 538);
    tbMax.Location = new Point(138, 535);

    tabControl.TabPages[1].Controls.RemoveByKey("label235");
    tabControl.TabPages[1].Controls.RemoveByKey("tbMax");

    tabControl.TabPages[2].Controls.Add(label235);
    tabControl.TabPages[2].Controls.Add(tbMax);
}

我在哪里犯了这个错误？

原文

I have three Tabs in my Windows Forms form. Depending on the selected RadioButton in the TabPages[0], I added few dynamic controls on the relevant TabPage. On the Button_Click event the controls are added, but the problem is I'm not able to remove the dynamically added controls from the other (irrelevant) TabPage.

Here's my code:

Label label235 = new Label();
TextBox tbMax = new TextBox();
label235.Name = "label235";
tbMax.Name = "txtBoxNoiseMax";
label235.Text = "Noise";
tbMax.ReadOnly = true;
label235.ForeColor = System.Drawing.Color.Blue;
tbMax.BackColor = System.Drawing.Color.White;
label235.Size = new Size(74, 13);
tbMax.Size = new Size(85, 20);

if (radioButton1.Checked)
{
    label235.Location = new Point(8, 476);
    tbMax.Location = new Point(138, 473);

    tabControl.TabPages[1].Controls.Add(label235);
    tabControl.TabPages[1].Controls.Add(tbMax);

    tabControl.TabPages[2].Controls.RemoveByKey("label235");
    tabControl.TabPages[2].Controls.RemoveByKey("tbMax");
}
else
{
    label235.Location = new Point(8, 538);
    tbMax.Location = new Point(138, 535);

    tabControl.TabPages[1].Controls.RemoveByKey("label235");
    tabControl.TabPages[1].Controls.RemoveByKey("tbMax");

    tabControl.TabPages[2].Controls.Add(label235);
    tabControl.TabPages[2].Controls.Add(tbMax);
}

Where am I making that mistake?

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陌生 2024-09-05 15:06:53

首先，tbMax的名字不是“tbMax”，而是“txtBoxNoiseMax”。因此，其一是无法在 RemoveByKey 上找到 TextBox。

您每次都在创建新的控件。

回复收藏 0 原文

冰之心 2024-09-05 15:06:53

正如 lc 已经提到的：

您将 TextBox 变量命名为 tbMax，但您为其指定了名称 txtBoxNoiseMax。如果您查看 RemoveByKey，您将看到它适用于 Name 属性。所以你应该改变

tbMax.Name = "txtBoxNoiseMax";

成

tbMax.Name = "tbMax";

As lc already mentioned:

You named your TextBox variable tbMax, but you gave it the name txtBoxNoiseMax. If you take a look into the description of RemoveByKey, you'll see it works on the Name property. So you should change