if (e.KeyCode == Keys.Enter)            {                //this.SelectNextControl(this.ActiveControl,true, true, true, true);                SendKeys.Send("{Tab}");  //向活动应用程序发送击键 注意格式：Send("{Tab}");中的{}            }

 

/// 
/// 窗体控件控制相关的方法/// 
public class ControlTools{    private Form frm;    public ControlTools(Form frm)    {      this.frm = frm;    }    /// 
    /// 窗体上所有子控件的回车设成Tab    /// 
    public void EnterToTab()    {      frm.KeyPreview = true;      frm.KeyPress += new KeyPressEventHandler(frm_KeyPress);    }    /// 
    /// 注册窗体的KeyPress事件    /// 
    ///     ///     private void frm_KeyPress(object sender, KeyPressEventArgs e)    {      if (e.KeyChar == (char)Keys.Enter)      {        frm.SelectNextControl(frm.ActiveControl, true, true, true, true);      }    }    /// 
    /// 把某一个控件的所有子控件(TextBox ComboBox)的回车设成Tab    /// 
    /// 容器控件    public void EnterToTab(Control groupControl)    {      foreach (Control control in groupControl.Controls)      {        if (control is TextBox || control is ComboBox)          control.KeyPress += new KeyPressEventHandler(control_KeyPress);      }    }    /// 
    /// 注册控件的KeyPress事件    /// 
    ///     ///     private void control_KeyPress(object sender, KeyPressEventArgs e)    {      if (e.KeyChar == 13)      {        SendKeys.Send("{Tab}");        e.Handled = false;      }    }}

 

 

来源参考：

http://www.phpstudy.net/b.php/100776.html  WinForm中变Enter键为Tab键实现焦点转移的方法

http://blog.csdn.net/jameshelong/article/details/11947549  在winform窗口上，实现按回车键(Enter)光标移至下一个控件的方法