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        <asp:Button runat="server" ID="Bt_Add" Text="Ìí¼Ó" Width="80px" Height="20px" OnClick="Bt_Add_Click" />
    </div>
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 protected void Bt_Add_Click(object sender, EventArgs e)
{
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      ClientScript.RegisterStartupScript(this.GetType(), "ReLoad", "ReLoad();", true);
}
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<script type="text/javascript" language="javascript">
function ReLoad() {
            if(window.opener)
            {//Èç¹û¸¸Ò³Ã滹Ôڵϰ
                window.opener.location.reload();//ÏÈˢи¸Ò³Ãæ
                window.opener = null;//
                window.close();//ÕâÁ½¾äÊÇΪÁ˲»³öÏÖÌáʾ
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