WPF和WindowsForm下的按下Enter跳转下一个控件通用方法

protected override void OnKeyDown(KeyEventArgs e)
{

if (e.Key == Key.Enter)
{
// MoveFocus takes a TraveralReqest as its argument.
TraversalRequest request = new TraversalRequest(FocusNavigationDirection.Next);

// Gets the element with keyboard focus.
UIElement elementWithFocus = Keyboard.FocusedElement as UIElement;

// Change keyboard focus.
if (elementWithFocus != null)
{
elementWithFocus.MoveFocus(request);
}
e.Handled = true;
}
base.OnKeyDown(e);
}

/// <summary>
/// 方法一：实现按下回车跳到下一个控件（不论是什么控件，如果需要可以在里面加上对控件类型的判断）
/// </summary>
/// <param name="e"></param>
protected override void OnKeyDown(KeyEventArgs e)
{

if (e.KeyCode == Keys.Enter)
{
int i = 0;
foreach (Control c in this.Controls)
{
if (c.Focused)
{
i = c.TabIndex;
break;
}
}
foreach (Control c in this.Controls)
{
if (c.TabIndex == (i + 1))
{
c.Focus();
break;
}
}

}
}
/// <summary>
/// 方法二：灵活方便，可以通过方法中的参数控制是否要进入控件的子控件中，是否忽略tobstop的设置。
/// </summary>
/// <param name="e"></param>
protected override void OnKeyPress(KeyPressEventArgs e)
{
//base.OnKeyPress(e);
if (e.KeyChar == (char)13)
{
e.Handled = true;
this.SelectNextControl(this.ActiveControl, true, true, true, false);
}
}
/// <summary>
/// 方法三：直接将enter按键转化为tab按键
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Form1_KeyDown(object sender, KeyEventArgs e)
{
MessageBox.Show("");
if (e.KeyCode == Keys.Enter)
{
SendKeys.Send("{TAB}");
e.Handled = true;
}
}