在这里我们将用一个隐藏字段来保存这个PageIndex,即当前页码.当点击上一页时,将它的值减一,知道为0,要注意的一点这里的第一页页码是0而不是1.下面看看代码,然后我们再分析分析!
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<asp:GridView ID="NewsGrid" runat="server" AutoGenerateColumns="False" AllowPaging="false" Width="100%">
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<Columns>
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<asp:BoundField DataField="NewsId" HeaderText="新闻ID"/>
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<asp:HyperLinkField DataNavigateUrlFields="NewsId" DataNavigateUrlFormatString="~/Details.aspx?ID={0}"
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DataTextField="Title" HeaderText="新闻标题" ItemStyle-Width="70%"/>
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<asp:BoundField DataField="PostTime" HeaderText="发布时间"/>
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<asp:CommandField HeaderText="新闻管理" ShowCancelButton="False" ShowDeleteButton="True"
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ShowEditButton="True"/>
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</Columns>
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</asp:GridView>
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<div style=" height:16px; padding-top:5px; margin-right:30px; float:right">
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<asp:HiddenField ID="CurrentPage" runat="server" Value="0"/>
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<asp:LinkButton ID="First" runat="server" CommandArgument="first" OnClick="PagerButton_Click">首 页</asp:LinkButton>
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<asp:LinkButton ID="Prev" runat="server" CommandArgument="prev" OnClick="PagerButton_Click">上一页</asp:LinkButton>
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<asp:LinkButton ID="Next" runat="server" CommandArgument="next" OnClick="PagerButton_Click">下一页</asp:LinkButton>
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<asp:LinkButton ID="Last" runat="server" CommandArgument="last" OnClick="PagerButton_Click">尾 页</asp:LinkButton>
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</div>
CS文件中的代码:![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
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protected void PagerButton_Click(object sender, EventArgs e)
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{
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int pageIndx = Convert.ToInt32(CurrentPage.Value);
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int totals = NewsManager.GetNews(0, pageSize).TotalRecords;
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int pages = (totals % pageSize) == 0 ? (totals / pageSize) : (totals / pageSize + 1);
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string arg = ((LinkButton)sender).CommandArgument.ToString().ToLower();
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switch (arg)
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{
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case "prev":
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if (pageIndx > 0)
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{
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pageIndx -= 1;
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}
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break;
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case "next":
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if (pageIndx < pages - 1)
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{
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pageIndx += 1;
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}
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break;
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case "last":
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pageIndx = pages - 1;
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break;
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default:
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pageIndx = 0;
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break;
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}
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CurrentPage.Value = pageIndx.ToString();
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NewsGrid.DataSource = NewsManager.GetNews(pageIndx , pageSize).Entities;
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NewsGrid.DataBind();
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}
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是不是很简单啊,看了代码就都懂了,关于用按钮传参数在这里就不多说了,还有一个就是Entities属性,在<<应用实体类EntitySet实现类似的范型功能 >>这篇文章中可以找到!