如果去掉Textbox的Beep响声?

Question

如果form的acceptbutton,cancelbutton不设置的话,在textbox中键入enter,escape就会发出Beep响声.
在keypress事件,或者processdialogkey中可以通过屏蔽enter,escape消息的办法来解决.
请问,有什么办法能只去掉Beep响声,而不屏蔽enter,escape消息?

Answer 1

KeyDown事件
e.Handled = true;

Answer 2

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;namespace WindowsFormsApplication3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();            TextBox TB = new TextBox();
            TB.Parent = this;
            TB.KeyDown += new KeyEventHandler(TB_KeyDown);
        }        void TB_KeyDown(object sender, KeyEventArgs e)
        {
            e.SuppressKeyPress = e.KeyData == Keys.Enter || e.KeyData == Keys.Escape;
        }
    }
}

Answer 3

 // KeyPress事件处理器
 private void TextBox1_KeyPress(object sender, KeyPressEventArgs e)
 {
     //设置按Enter键和Esc键不发出Beep声音
     if (e.KeyChar == (char)Keys.Enter || e.KeyChar == (char)Keys.Escape)
     {
         e.Handled = true;
     }
 }

Answer 4

完整程序，既没有声音又不屏蔽
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;namespace WindowsFormsApplication3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();            TextBox TB = new TextBox();
            TB.Parent = this;
            TB.KeyDown += new KeyEventHandler(TB_KeyDown);
            TB.KeyPress += new KeyPressEventHandler(TB_KeyPress);
        }        void TB_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == (Char)Keys.Enter || e.KeyChar == (Char)Keys.Escape)
                MessageBox.Show("Enter或Escape键");
        }        void TB_KeyDown(object sender, KeyEventArgs e)
        {
            e.SuppressKeyPress = e.KeyData == Keys.Enter || e.KeyData == Keys.Escape;
            if (e.SuppressKeyPress)
                TB_KeyPress(sender, new KeyPressEventArgs((Char)e.KeyData));
        }
    }
}

Answer 5

void TB_KeyPress(object sender, KeyPressEventArgs e)
        {
            this.Text = ((int)e.KeyChar).ToString(); 
        }
这个听更清楚点，messagebox也有beep