GridView 分页实现方法

最新推荐文章于 2023-03-10 13:57:09 发布

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本文介绍了一种基于ASP.NET的GridView控件实现分页功能的方法。通过设置GridView的属性如AllowPaging和PageSize，结合后台代码处理分页事件，可以轻松地为GridView添加分页功能。此外，还展示了如何通过DropDownList来选择不同的页面。

GridView分页功能其实非常简单。这是一个简单的分页实现，给需要的做个参考。基于一下的思路很容易就可以做强大的分页出来

页面代码：

<asp:GridView ID="gv_unionlist" runat="server" AutoGenerateColumns="False" Width="100%" OnRowDataBound="gv_unionlist_RowDataBound" OnRowCommand="gv_unionlist_RowCommand" AllowPaging="True" OnRowCreated="gv_unionlist_RowCreated" PageSize="2">
                    <Columns>
                        <asp:BoundField DataField="ID" HeaderText="ID" />
                        <asp:BoundField DataField="unionid" HeaderText="会员号" />
                        <asp:BoundField DataField="username" HeaderText="用户名" />
                        <asp:BoundField DataField="company" HeaderText="公司名" />
                        <asp:BoundField DataField="dutyman" HeaderText="业务负责人" />
                        <asp:BoundField DataField="dutymanmobile" HeaderText="业务负责人手机" />
                        <asp:TemplateField HeaderText="全选">
                            <ItemTemplate>
                                <asp:CheckBox ID="CheckBox1" runat="server" />
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField HeaderText="订单情况">
                            <ItemTemplate>
                                <asp:LinkButton ID="lb_Orders" runat="server">查看订单</asp:LinkButton>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField HeaderText="房态修改">
                            <ItemTemplate>
                                 <asp:Button ID="tb_RoomStatus" runat="server" CommandName="RoomStatus" Text='<%#bind("RoomStatusFlag") %>' OnClientClick="return confirm('修改房态修改状态?');" />
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField HeaderText="自动满房">
                            <ItemTemplate>
                                 <asp:Button ID="tb_AutoFullRoom" runat="server" CommandName="AutoFullRoom"  Text='<%#bind("AutoFullRoomFlag") %>' />
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField HeaderText="操作">
                            <ItemTemplate>
                                <asp:LinkButton ID="lb_Del" runat="server" OnClientClick="return confirm('删除此记录?')" CommandName="del">删除</asp:LinkButton>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:HyperLinkField DataNavigateUrlFields="id" DataNavigateUrlFormatString="~/Admin/Union.aspx?action=update&id={0}"
                            HeaderText="确认与修改" Text="确认与修改" />
                        <asp:BoundField DataField="registerdt" HeaderText="注册时间" />
                        <asp:BoundField DataField="lastlogindt" HeaderText="最后登陆时间" />
                        <asp:BoundField DataField="logincount" HeaderText="登陆次数" />
                    </Columns>
                    <PagerSettings Position="TopAndBottom" />
                    <PagerTemplate>
                        <table style="width: 100%">
                            <tr>
                                <td align="right">
                                    当前页：<asp:DropDownList ID="dl_pager" runat="server" AutoPostBack="True" OnSelectedIndexChanged="dl_pager_SelectedIndexChanged">
                                    </asp:DropDownList>/每页：<asp:Label ID="lb_pagesize" runat="server"></asp:Label>
                                    条</td>
                            </tr>
                        </table>
                    </PagerTemplate>
                </asp:GridView>

CS代码：

 protected void gv_unionlist_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.Pager)
        {
            ((DropDownList)e.Row.FindControl("dl_pager")).Items.Clear();
            ((Label)e.Row.FindControl("lb_pagesize")).Text = gv_unionlist.PageSize.ToString();
            for (int i = 0; i < this.gv_unionlist.PageCount; i++)
            {
                ListItem item = new ListItem(Convert.ToString(i + 1), i.ToString());
                if (item.Value == this.gv_unionlist.PageIndex.ToString())
                    item.Selected = true;
                ((DropDownList)e.Row.FindControl("dl_pager")).Items.Add(item);
            }
        }
}
protected void dl_pager_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (this.gv_unionlist.PageIndex != Convert.ToInt32(((DropDownList)gv_unionlist.TopPagerRow.FindControl("dl_pager")).SelectedValue))
            this.gv_unionlist.PageIndex = Convert.ToInt32(((DropDownList)gv_unionlist.TopPagerRow.FindControl("dl_pager")).SelectedValue);
        else if (this.gv_unionlist.PageIndex != Convert.ToInt32(((DropDownList)gv_unionlist.BottomPagerRow.FindControl("dl_pager")).SelectedValue))
            this.gv_unionlist.PageIndex = Convert.ToInt32(((DropDownList)gv_unionlist.BottomPagerRow.FindControl("dl_pager")).SelectedValue);
        this.searchUnion();
    }