请教刷新父窗口的问题
<asp:GridView ID="GZDList" runat="server" AutoGenerateColumns="False" Width="100%"
BorderColor="#9FD6FF" OnRowDeleting="GZDList_RowDeleting"
DataKeyNames="jhid" onrowediting="GZDList_RowEditing">
<AlternatingRowStyle CssClass="al_tr" />
<Columns>
<asp:TemplateField HeaderText="<input onclick="checkFormAll(this.checked)" type="checkbox" /> ">
<ItemStyle Width="5px" />
<ItemTemplate>
<asp:CheckBox ID="RowCheck" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="ID" ShowHeader="False" Visible="False">
<ItemTemplate>
<asp:Label ID="lblId" runat="server" Text='<%# Eval("jhid") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="BLUNIT" HeaderText="填报单位" />
<asp:TemplateField HeaderText="办班名称">
<ItemTemplate>
<asp:Label ID="lblStart" runat="server" Text='<%# Eval("BBNAME") %>' Font-Size="12px"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="PXADDRESS" HeaderText="培训地点" />
<asp:TemplateField HeaderText="办班时间">
<ItemTemplate>
<asp:Label ID="lblItemSort" runat="server" Text='<%# Eval("SQBMTIME") %>' Font-Size="Small"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="JHID" Visible="False">
<ItemTemplate>
<asp:Label ID="lblJHID" runat="server" Text='<%# Eval("JHID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField ShowDeleteButton="True" DeleteText="<div id="de" onclick="JavaScript:return confirm('你确定要删除?')">删除</div>"
HeaderText="删除"></asp:CommandField>
<asp:CommandField EditText="选择" HeaderText="申请" ShowEditButton="True" />
</Columns>
<HeaderStyle CssClass="dgHeader" />
</asp:GridView>
我想在点击申请的时候关闭子页面刷新父页面,要怎么写啊?