C＃我如何通过按下回车键，而文本框具有焦点点击一个按钮？ [英] C# How do I click a button by hitting Enter whilst textbox has focus?

问题描述

我在C＃中的winform应用程序的工作，之后我在一个文本框输入一些东西我想打回车键，但文本框中仍具有焦点（闪烁的光标仍处于文本框），我怎么能做到这一点？

I'm working with a WinForm app in C#, after I type something in a textbox I want to hit the Enter key but the textbox still has focus (flashing cursor is still in textbox), how can I achieve this?

推荐答案

简单的选项只是形式的的AcceptButton设置为你想要pressed按钮（通常是OK等）：

The simple option is just to set the forms's AcceptButton to the button you want pressed (usually "OK" etc):

    TextBox tb = new TextBox();
    Button btn = new Button { Dock = DockStyle.Bottom };
    btn.Click += delegate { Debug.WriteLine("Submit: " + tb.Text); };
    Application.Run(new Form { AcceptButton = btn, Controls = { tb, btn } });

如果这不是一种选择，你可以看看KeyDown事件等，但更多的工作...

If this isn't an option, you can look at the KeyDown event etc, but that is more work...

    TextBox tb = new TextBox();
    Button btn = new Button { Dock = DockStyle.Bottom };
    btn.Click += delegate { Debug.WriteLine("Submit: " + tb.Text); };
    tb.KeyDown += (sender,args) => {
        if (args.KeyCode == Keys.Return)
        {
            btn.PerformClick();
        }
    };
    Application.Run(new Form { Controls = { tb, btn } });

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