我尝试了这段代码：
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
if (Convert.ToInt32(e.KeyChar) == 13)
{
MessageBox.Show(" Enter pressed ");
}
}
和这个：
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == Convert.ToChar(Keys.Enter))
{
MessageBox.Show(" Enter pressed ");
}
}
和这个：
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == Keys.Enter)
{
MessageBox.Show(" Enter pressed ");
}
}
但他们不工作...
When I write something and press Enter, it doesn't work. It only highlights my text.
尝试这个代码，可能会工作（假设 Windows 窗体）：
private void CheckEnter(object sender, System.Windows.Forms.KeyPressEventArgs e)
{
if (e.KeyChar == (char)13)
{
// Enter key pressed
}
}
像这样注册事件：
this.textBox1.KeyPress += new
System.Windows.Forms.KeyPressEventHandler(CheckEnter);
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