单击输入按钮以创建新的文本框 [英] Click an enter button to create a new textbox

问题描述

如何通过单击输入按钮创建一个新的 TextBox?以及如何将光标聚焦在新文本框上(每次创建新文本框时，光标都会聚焦在最后一个文本框上)?

How do I create a new TextBox by clicking an enter button? And how do I focus the cursor on the new textbox (the cursor focus on the last textbox every time the new textbox has been created)?

我已经尝试过这个代码:

I has been tried this code:

"private void textBox1_TextChanged(object sender, EventArgs e)
        {
            textBox1.Enter += new EventHandler(textBox1_Enter);
        }

        private void textBox1_Enter(object sender, EventArgs e)
        {
            TextBox tb = new TextBox();

            tb.Size = new Size(100, 50);
            tb.Location = new Point(100, 100);

            Controls.Add(tb);
        }"

但是当我按下回车按钮时它不会创建一个新的文本框

But it not create a new textbox when i press an enter button

推荐答案

加载表单时:

this.KeyDown += new KeyEventHandler(Form1_KeyDown);

然后

void Form1_KeyDown(object sender, KeyEventArgs e)
{
    if (e.Key == Key.Return)
    {
        TextBox textbox = new TextBox();
        this.Controls.Add(textbox);
        textbox.Focus(); 
    }
}

本质上，创建在按下某个键时触发的事件.如果键是返回键，则创建文本框.

Essentially, create the event that fires when a key is pressed. If the key is the return key, create the textbox.

您的示例代码实际上没有意义，因为您是从文本框中触发事件，而您希望它们从表单中触发.

Your sample code doesn't really make sense because you are firing events from a textbox, when you want them fired from the form.

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