gridview子窗口向父窗口传值！

1、父窗体：

<script type="text/javascript">
        function XuanZeContract()
        {
            window.showModalDialog('子窗体.aspx','newwindow','height=300,width=500,top='+(screen.AvailHeight-300)/2+',left='+(screen.AvailWidth-300)/2+',toolbar=no,menubar=no,scrollbars=no, resizable=no,location=no, status=no');
        }

父窗体后台取值：

TextBox1.Text = Request.QueryString["id"];

html代码：

<input id="Button3" type="button" value="选择" onclick="XuanZeContract()" />

2、子窗体后台双击选择：

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        //鼠标双击事件
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            e.Row.Attributes.Add("onDblClick", "javascript:top.location.href='父窗体.aspx?id=" + e.Row.Cells[1].Text.ToString() + "';window.close();");
        }
    }

3、父窗体打开子窗体后 双击选择某行值后没有跳转到父窗体，而是重新起了一页：父窗体.aspx?id=xxxxx
怎样才能让它到父窗口而不是重新起一页呢？

正确代码：

<script type="text/javascript">
  function XuanZeContract()
  {
  window.open('子窗体.aspx','newwindow','height=300,width=500,top='+(screen.AvailHeight-300)/2+',left='+(screen.AvailWidth-300)/2+',toolbar=no,menubar=no,scrollbars=no, resizable=no,location=no, status=no');
  }


e.Row.Attributes.Add("onDblClick", "javascript:opener.location.href='父窗体.aspx?id=" + e.Row.Cells[1].Text.ToString() + "';window.close();");