button(按钮)单击向TextBox(编辑框)模拟按键。 SendKeys.Send("1").按钮会获取焦点。导致编辑框不能接收模拟按键。

Question

button(按钮)单击向TextBox(编辑框)模拟按键。 SendKeys.Send("1").按钮会获取焦点。导致编辑框不能接收模拟按键。如何解决。感谢。

Answer 1

Hi 可推，

这个很好解决，在SendKey.Send 前调用textbox的focus方法就行了，范例：

        private void Button_Click(object sender, EventArgs e)
        {
            textbox.Focus();//文本框获取焦点
            SendKeys.Send("1");
        }

Regards,

Moonlight

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Answer 2

嘿。方法不错。请问下窗体大于两个以上的TextBox的控件如何处理焦点。

Answer 3

Hi 可推，

加个临时变量并调用文本框Leave事件将控件存入，范例：

        Control currControl = null;
        //绑定Leave事件
        textbox1.Leave += (obj, arg) => { currControl = obj as TextBox; }//或者直接写个方法给所有需要操作的文本框绑定
        //textbox2.Leave += (obj, arg) => { currControl = obj as TextBox; }

        private void button1_Click(object sender, EventArgs e)
        {
            currControl.Focus();
            SendKeys.Send(“1”);
            currControl = null;//清理变量
        }

Regards,

Moonlight

---

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Answer 4

哈。明白了。感谢。