C# Windows 窗体文本框 Enter 键
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/18059306/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Windows Forms Textbox Enter key
提问by Statharas.903
I have a TextBox, but I can't find any source explaining how to call a function when a button is pressed down.
我有一个文本框，但我找不到任何解释按下按钮时如何调用函数的来源。
public Simple()
{
Text = "Server Command Line";
Size = new Size(800, 400);
CenterToScreen();
Button button = new Button();
TextBox txt = new TextBox ();
txt.Location = new Point (20, Size.Height - 70);
txt.Size = new Size (600, 30);
txt.Parent = this;
button.Text = "SEND";
button.Size = new Size (50, 20);
button.Location = new Point(620, Size.Height-70);
button.Parent = this;
button.Click += new EventHandler(Submit);
}
Some sources tell me to use a function, but I don't understand how it is going to get called.
一些消息来源告诉我使用一个函数，但我不明白它将如何被调用。
采纳答案by gzaxx
If I understood correctly you want to call a method when users press Enterwhile typing anything in textbox? If so, you have to use the KeyUpevent of TextBoxlike this:
如果我理解正确，您想在用户Enter在文本框中键入任何内容时按下时调用一个方法吗？如果是这样，你必须使用这样的KeyUp事件TextBox：
public Simple()
{
Text = "Server Command Line";
...
TextBox txt = new TextBox ();
txt.Location = new Point (20, Size.Height - 70);
txt.Size = new Size (600, 30);
txt.KeyUp += TextBoxKeyUp; //here we attach the event
txt.Parent = this;
Button button = new Button();
...
}
private void TextBoxKeyUp(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
//Do something
e.Handled = true;
}
}
回答by Ehsan
you already have a button as well like this
你已经有一个像这样的按钮
button.Click += new EventHandler(Submit);
if you want to call this function you can do this
如果你想调用这个函数，你可以这样做
button.PerformClick(); //this will call Submit you specified in the above statement
