asp.net一个非常简单的分页

Posted 2021-03-15 小白827

分页，也是一个非常常见得需求，以前也用过很多的分页控件，现在自己参照之前用过的，自己总结一个非常简单实用的分页实现方法。具体如下：数据展示用Repeater，分页的话用js切换当前的页码，后台根据当前页码获取数据绑定到Repeater。

数据列表代码

<div class="js_celli list">
<div class="idea_cell_wh" style="overflow: visible">
<table class="table table-striped table-hover">
<asp:Repeater ID="SDRepeater" runat="server">
<HeaderTemplate>
<tr class="tips_title">
<th>主题</th>
<th width="10%">处理状态</th>
<th width="10%">发帖人</th>
<th width="10%">时间</th>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td class="titletd" title="<%#Eval("Title") %>"><%#Eval("Title") %></td>
<td><%#Eval("Status")+"" == "" ? "未分派" : Eval("Status") %></td>
<td><%#Eval("Author") %></td>
<td><%#DateTime.Parse( Eval("Created")+"").ToString("yyyy-MM-dd hh:mm") %></td>
</tr>
</ItemTemplate>
</asp:Repeater>
</table>
</div>
<div style="width: 100%; text-align: center;font-size:18px;color:#ffd800;font-weight:600;" ID="lbMessage" runat="server">
</div>
</div>
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分页html

<div class="container" style="text-align: center;">
<div class="col-xs-12 col-sm-12 col-md-12 col-lg-12" style="margin: 0;">
<ul id="PagerID" class="pagination pagination-sm">
<li><a onclick="TurnPage(‘f‘)">首页 </a></li>
<li><a onclick="TurnPage(‘p‘)">上页 </a></li>
<li>
<span>页:
<asp:Label ID="lbCurrentPage" runat="server">0</asp:Label>/<asp:Label ID="lbMaxPage" runat="server">0</asp:Label>
</span>
</li>
<li><a onclick="TurnPage(‘n‘)">下页 </a></li>
<li><a onclick="TurnPage(‘e‘)">末页 </a></li>
<li><a onclick="TurnPage(‘a‘)">GoTo </a></li>
<li>
<input type="text" id="txtInputNumber" style="width: 50px;"></li>
</ul>
</div>
</div>
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分页JS

function TurnPage(type) {
var currentPage = getQueryString("currentPage") == null ? 1 : parseInt(getQueryString("currentPage"));
var maxPage = <%=maxPage%>;

switch (type) {
case ‘f‘:
currentPage = 1;
break;
case ‘p‘:
if (currentPage <= 1) {
return;
}
else {
currentPage = currentPage - 1;
}
break;
case ‘n‘:
if (currentPage >= maxPage) {
return;
}
else {
currentPage = currentPage + 1;
}
break;
case ‘e‘:
if(currentPage == maxPage)return;
currentPage = maxPage;
break;
case ‘a‘:
if ( isNaN(parseInt(document.getElementById("txtInputNumber").value))) {
return;
} else if (parseInt(document.getElementById("txtInputNumber").value) > maxPage) {
alert("没有那么多页");
return;
} else {
currentPage = parseInt(document.getElementById("txtInputNumber").value);
}
break;
default:
break;
}

if(!isNaN(currentPage) && currentPage > 0)
{
location.href = "?currentPage=" + currentPage;
}
}
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分页样式

ul.pagination {
display: inline-block;
}

.pagerlist {
float: left;
margin-left: 40%;
}

.pagination {
display: inline-block;
padding-left: 0;
margin: 20px 0;
border-radius: 4px;
}

.pagination {
display: inline-block;
padding-left: 0;
margin: 20px 0;
border-radius: 4px;
}

ul.pagination li {
float: left;
margin-right: 5px;
border: #e2e2e2 1px solid;
}

.pagination > li {
display: inline;
cursor: pointer;
}

.pagination > li:first-child > a, .pagination > li:first-child > span {
margin-left: 0;
border-top-left-radius: 4px;
border-bottom-left-radius: 4px;
}

ul.pagination li a, ul.pagination li a:link, ul.pagination li a:visited {
display: block;
padding: 0 10px;
line-height: 24px;
color: #666;
font-size: 12px;
text-decoration: none;
}

.pagination > li > a, .pagination > li > span {
position: relative;
float: left;
padding: 2px 12px;
margin-left: -1px;
line-height: 1.42857143;
color: #428bca;
text-decoration: none;
background-color: #fff;
border: 1px solid #ddd;
}
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后台代码

//最大页码
public int maxPage = 0;
//页数
int PageSize = 50;
public SPWeb web = null;
public bool IsCoordinator = false;

protected void Page_Load(object sender, EventArgs e)
{
web = SPContext.Current.Web;

int currentPage = 1;
if (int.TryParse(Request["currentPage"] + "", out currentPage))
{
}

if (currentPage < 1) currentPage = 1;

DataTable dt = GetSDData();
if (dt != null && dt.Rows.Count > 0)
{
lbMessage.Disabled = false;
maxPage = (int)Math.Ceiling(dt.Rows.Count / (double)PageSize);

lbCurrentPage.Text = currentPage + "";
lbMaxPage.Text = maxPage + "";

SDRepeater.DataSource = Common.GetPagedTable(dt, currentPage, PageSize);
SDRepeater.DataBind();
}
else
{
lbMessage.Disabled = true;
lbMessage.InnerText = " ----- no data ----- ";
}

}
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获取当前页的数据

/// <summary>
/// DataTable分页
/// </summary>
/// <param name="dt">DataTable</param>
/// <param name="PageIndex">PageIndex表示第几页</param>
/// <param name="PageSize">PageSize表示每页的记录数</param>
/// <returns></returns>
public static DataTable GetPagedTable(DataTable dt, int PageIndex, int PageSize)
{
DataTable newdt = dt.Copy();
newdt.Clear();

int rowbegin = (PageIndex - 1) * PageSize;
int rowend = PageIndex * PageSize;

if (rowbegin >= dt.Rows.Count)
return newdt;

if (rowend > dt.Rows.Count)
rowend = dt.Rows.Count;
for (int i = rowbegin; i <= rowend - 1; i++)
{
DataRow newdr = newdt.NewRow();
DataRow dr = dt.Rows[i];
foreach (DataColumn column in dt.Columns)
{
newdr[column.ColumnName] = dr[column.ColumnName];
}
newdt.Rows.Add(newdr);
}
return newdt;
}
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版权声明：本文为CSDN博主「郑小晨」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/u012835032/article/details/80538155