Repeater控件使用小结持续更新
2024-09-27 07:22:44
Repeater嵌套Repeater绑定数据
前台代码
<!--注意层级关系不要写错了-->
<asp:Repeater ID="rpGroup" runat="server"
onitemdatabound="rpGroup_ItemDataBound">
<HeaderTemplate>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
</HeaderTemplate>
<ItemTemplate>
<tr>
<th>
第
<%#(int)Eval("groupNo")+1%>
批次
</th>
<th>金额：<label id="lblSumMoney" runat="server" ><%#Eval("SaleOrderMoneySum")%></label></th>
<th>单数：<label id="lblSumSaleOrder" runat="server" ><%#Eval("SaleOrderDzSum")%></label></th>
</tr>
<tr>
<th style="width: 8%">
销售单号
</th>
<th style="width: 13%">
客户名称
</th> </tr>
<asp:Repeater ID="rpSaleOrderDz" runat="server">
<ItemTemplate>
<tr>
<td align="center">
<%#Eval("saleOrderCode")%>
</td>
<td align="center">
<%#Eval("sellerName")%>
</td> </tr>
</ItemTemplate>
</asp:Repeater>
</ItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>
在PageLoad事件中，加载外层Repeter数据
protected void Page_Load(object sender, EventArgs e)
{
var datas = JsonConvert.DeserializeObject<List<ResponseViewSaleOrderDzLstModel>>(strJson);
rpGroup.DataSource = datas;
rpGroup.DataBind();
}
最后一步根据外层绑定的数据找到对应的内层数据
后台代码：这块需要绑定外层Repeater的ItemDataBound事件
//网上资料用到了DataRowView我这里没用到直接绑定了数据集
protected void rpGroup_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
Repeater rep = e.Item.FindControl("rpSaleOrderDz") as Repeater;//找到里层的repeater对象
//DataRowView rowv = (DataRowView)e.Item.DataItem;//找到分类Repeater关联的数据项
//int groupNo = Convert.ToInt32(rowv["qtid"]); //获取组号
rep.DataSource = datas[e.Item.ItemIndex].datas;//datas[groupNo].datas;
rep.DataBind();
}
}
Repeater获取HeaderTemplate、FooterTemplate中的控件
Repeater中FooterTemplate并无FindControl方法，也无法将FooterTemplate转成RepeaterItem，
虽然在Repeater的ItemDataBound事件中，RepeaterItemEventArgs参数用if (e.Item.ItemType == ListItemType.Footer)可判别出这个Footer，但其他时候不行。
可通过如下代码进行文本的赋值：
<label ID="rep2Sum" runat="server" />
((HtmlGenericControl)rep2.Controls[rep2.Controls.Count - ].FindControl("rep2Sum")).Text = ss.ToString();
同理HeaderTemplate：
((HtmlGenericControl)rep2.Controls[0].FindControl("rep2Sum")).Text = ss.ToString();
Repeater实现行上下移动
前端
<asp:Repeater ID="rpNews" runat="server" OnItemCommand="rpNews_ItemCommand" OnItemDataBound="rpNews_ItemDataBound">
<ItemTemplate>
<tr>
<td><%#Eval("menu_name") %></td>
<td><%#Eval("menu_url") %>
<asp:HiddenField ID="zindex" runat="server" Value=<%# Container.ItemIndex%> />
</td>
<td class="gradeX">
<a class="btn btn-primary" href="UpDateMenu.aspx?action=update&oid=<%# Eval("OID") %>&menuName=<%# Eval("menu_name") %>">修改</a>
<a ID="btnDelete" href="MenuHandler.ashx?action=delete&oid=<%# Eval("OID") %>" OnClick="return IsConfirmDelete();" class="btn btn-primary">删除</a>
<asp:LinkButton runat="server" ID="linkUp" CommandArgument='<%# Eval("OID") %>' CommandName='<%# Eval("menuorder") %>' OnClick="lbUp_Click" Text="上移" CssClass="btn btn-primary"></asp:LinkButton>
<asp:LinkButton runat="server" ID="linkDown" CommandArgument='<%# Eval("OID") %>' Text="下移" CommandName='<%# Eval("menuorder") %>' OnClick="lbDown_Click" CssClass="btn btn-primary"></asp:LinkButton>
</td>
</tr>
</ItemTemplate>
</asp:Repeater>
后端：
public int datacount = ;
protected void rpNews_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
LinkButton linkUp = e.Item.FindControl("linkUp") as LinkButton;
LinkButton linkDown = e.Item.FindControl("linkDown") as LinkButton;
if (e.Item.ItemIndex == )
{
linkUp.Enabled = false;
}
if (e.Item.ItemIndex == datacount - )
{
linkDown.Enabled = false;
}
}
}
protected void lbUp_Click(object sender, EventArgs e)
{
MenuUCService uc = new MenuUCService();
LinkButton btn = (LinkButton)sender;
HiddenField hf = (HiddenField)btn.NamingContainer.FindControl("zindex");
//先修改自己在修改其他
StringBuilder strSql = new StringBuilder();
//拿到当前行的上一行的Link数据
LinkButton linkCurrentRow = (LinkButton)rpNews.Items[int.Parse(hf.Value)].FindControl("linkUp");
if (!uc.CheckCurrentRowValueRange(linkCurrentRow))
{
return;
}
LinkButton linkUpRow = (LinkButton)rpNews.Items[int.Parse(hf.Value) - ].FindControl("linkUp"); //得到的menuorder-oid
strSql.Append("update USR_ALLMENU set menuorder='" + linkUpRow.CommandName + "' where OID='" + linkCurrentRow.CommandArgument + "';");
strSql.Append("update USR_ALLMENU set menuorder='" + linkCurrentRow.CommandName + "' where OID='" + linkUpRow.CommandArgument + "';");
//重新绑定数据 }
protected void lbDown_Click(object sender, EventArgs e)
{
MenuUCService uc = new MenuUCService();
LinkButton btn = (LinkButton)sender;
HiddenField hf = (HiddenField)btn.NamingContainer.FindControl("zindex");
LinkButton linkCurrentRow = (LinkButton)rpNews.Items[int.Parse(hf.Value)].FindControl("linkDown");
if (!uc.CheckCurrentRowValueRange(linkCurrentRow))
{
return;
}
LinkButton linkDown = (LinkButton)rpNews.Items[int.Parse(hf.Value) + ].FindControl("linkDown");
StringBuilder strSql = new StringBuilder();
strSql.Append("update USR_ALLMENU set menuorder='" + linkDown.CommandName + "' where OID='" + linkCurrentRow.CommandArgument + "';");
strSql.Append("update USR_ALLMENU set menuorder='" + linkCurrentRow.CommandName + "' where OID='" + linkDown.CommandArgument + "';");
//重新绑定数据 }
原理：找到相邻行，然后获取ID和排序方式，然后修改
参考自：http://www.cnblogs.com/webapi/p/5718445.html
最新文章
- rnandroid环境搭建
- javascript运动系列第六篇——轨迹和投掷
- 【整理】深入理解拉格朗日乘子法（Lagrange Multiplier) 和KKT条件
- oracle和mysql获取当前时间的不同
- PHP开发环境配置
- [git] ignore文件规则失效
- C# 类的访问修改符
- struts2中错误处理
- 用一行代码初始化ArrayList
- Connection to https://dl-ssl.google.com refused 解决方案
- 使用repeater控件显示列表替代treeview
- [Angular 2] Using ng-for to repeat template elements
- node to traverse cannot be null!
- scala map
- Java 开发中如何正确踩坑
- js字符串转换为数字 总结
- linux安装lamp环境(linux+apache+mysql+php)
- python 网络编程之TCP传输&粘包传输
- 基于react可无限向内部添加节点的tree
- 5款Python程序员高频使用开发工具推荐