Question

我长期以来一直在努力解决这个问题。

我在标签上添加了一个文本框和一个按钮。我把文字放在文本框中：

现在，我的问题是，如何删除单击按钮旁边的文本框并将所有文本框向下移动，这样我就不会得到任何空白区域。如果我按下第7个文本框旁边的按钮，我希望它看起来像这样：

这是我的代码：

private void Form1_Load(object sender, EventArgs e)
    {
        //creates a textbox(t0) and a button(b0) on load
        TextBox t0 = new TextBox();
        t0.Name = "t0";
        t0.Location = new Point(16, 12);
        t0.Width = 200;
        t0.PreviewKeyDown += new PreviewKeyDownEventHandler(PreviewKeyDown);

        Button b0 = new Button();
        b0.TabStop = false;
        b0.Text = "x";
        b0.Location = new Point(216, 11);
        b0.Size = new System.Drawing.Size(20, 22);
        b0.Click += new EventHandler(buttonclicked);

        panel1.Controls.Add(t0);
        panel1.Controls.Add(b0);
    }



    private new void PreviewKeyDown(object sender, PreviewKeyDownEventArgs e)
    {
        //if I press tab in the last textbox it creates a new textbox(t + amount of textboxes) and button(b + amount of textboxes)
        if (e.KeyData == Keys.Tab)
        {
            int counter2 = 0;
            foreach (TextBox box in panel1.Controls.OfType<TextBox>())
            {
                counter2++;
            }

            counter2 = counter2 - 1;
            string Name = "t" + Convert.ToString(counter2);
            counter2++;
            foreach (TextBox box in panel1.Controls.OfType<TextBox>())
            {
                if (Name == box.Name && box.Focused)
                {
                    TextBox t0 = new TextBox();
                    Button b0 = new Button();

                    t0.Location = new Point(16, 12 + counter - panel1.VerticalScroll.Value);
                    t0.Width = 200;
                    t0.Name = "t" + Convert.ToString(counter2);
                    t0.PreviewKeyDown += new PreviewKeyDownEventHandler(PreviewKeyDown);

                    b0.TabStop = false;
                    b0.Text = "x";
                    b0.Name = "b" + Convert.ToString(counter2);
                    b0.Location = new Point(216, 11 + counter - panel1.VerticalScroll.Value);
                    b0.Size = new System.Drawing.Size(20, 22);
                    b0.Click += new EventHandler(buttonclicked);

                    panel1.Controls.Add(t0);
                    panel1.Controls.Add(b0);

                    counter = counter + 25;
                }
            }
        }
    }


    private void buttonclicked(object sender, EventArgs e)
    {
        //Remove the textbox next to it.
    }

感谢任何帮助

Answer 1

我建议您使用TableLayoutPanel。将TableLayoutPanel上的GrowStyle设置为AddRows或AddColumns，然后您可以添加/删除控件，它会自动调整大小。将每行的高度设置为略大于文本框高度的数字。将列宽设置为一个值，以便文本框和按钮可以适合它们。你需要2列。

您无需将控件的位置设置为静态位置。它们将由TableLayoutPanel为您处理。

以下是如何为其添加新控件的方法。

yourTableLayoutPanel.Controls.Add(yourTextbox1, 0 /* Column Index */, 0 /* Row index */);

C＃删除动态添加的文本框并将所有其他文本框向下移动

1 个答案: