用“回车”键代替“Tab”键

//首先将窗体的 keypreview 的属性设为 true 
private void 窗体_KeyPress(object sender, KeyPressEventArgs e)
{
 if ( e.KeyChar == (char)13 )
 {
 this.SelectNextControl(this.ActiveControl, true, true, false, true);
 }
}
//或
private void Form1_KeyDown(object sender, KeyEventArgs e)
{
 if ( e.KeyData == Keys.Enter )
 {
 this.SelectNextControl(this.ActiveControl, true, true, false, true);
 }
}