repeater 控件

1.基本模型

<asp:Repeater ID="rptPurchaseOrderReportForms" OnItemDataBound="rptPurchaseOrderReportForms_ItemDataBound" runat="server">
        <HeaderTemplate>
            <table class="table" id="table" border="0" cellpadding="0" cellspacing="0" style="text-align: center">
                <tr style="white-space: nowrap">
                    <td class="tbheader">
                        <%=GetText("会员下单日期")%>
                    </td>
                    <td class="tbheader">
                        <%=GetText("客户")%>
                    </td>  
                </tr>                
        </HeaderTemplate>
        <ItemTemplate>
            <tr class="tbrow">
                <td class="tbpost">
                   <%#Eval("CustomerOrderCreatedOn", "{0:yyyy-MM-dd}")%> //格式话日期
                </td>
                <td class="tbpost">
                    <%#Eval("CustomerCode")%>
                </td>              
            </tr>
        </ItemTemplate>
        <AlternatingItemTemplate>
            <tr class="tbrowalter">
                <td class="tbpost">
                    <%#Eval("CustomerOrderCreatedOn", "{0:yyyy-MM-dd}")%>
                </td>
                <td class="tbpost">
                    <%#Eval("CustomerCode")%>
                </td>           
            </tr>
        </AlternatingItemTemplate>
        <FooterTemplate>
            </table>
        </FooterTemplate>
    </asp:Repeater>

  2.事件

   2.1 ItemDataBound事件：当repeater绑定数据时，绑定一条触发一次。

 //例一
void R1_ItemDataBound(Object Sender, RepeaterItemEventArgs e)
       {
          // This event is raised for the header, the footer, separators, and items.
          // Execute the following logic for Items and Alternating Items.
          if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) {

             if (((Person)e.Item.DataItem).name== "Good") 
             {
                ((Label)e.Item.FindControl("nameLabel")).Text= "<b>***Good***</b>";
             }
          }
       }    

//例二：把列值为“是”的行，特定几个字段显示红色。（ItemDataBound 绑定一次触发一次）
 protected void rptPurchaseOrderReportForms_ItemDataBound(object sender, RepeaterItemEventArgs e)
        {   
             // 去掉repeat的头部
            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
            {
               var row = e.Item.DataItem as DataRowView;  //（as 也为强转，当转换不过时返回null给row）
               //  var row = (DataRowView)(e.Item.DataItem); //（强转，当转换不过来时报错）
                if (row["IsExtraPay"].ToString() == "是")
                {
                    (e.Item.FindControl("lblPurchasedOn") as Label).ForeColor = System.Drawing.Color.Red;
                    (e.Item.FindControl("lblOutTradeSN") as Label).ForeColor = System.Drawing.Color.Red;
                    (e.Item.FindControl("lblShopName") as Label).ForeColor = System.Drawing.Color.Red;


                }
            }
        }

　　

　　2.2 ItemCommand事件：当触发某一项的某一列时，触发。

 

rpt前台： 

<asp:LinkButton ID="lbnInfo" runat="server" CommandArgument='<%# Eval("Type_ID") %>'CommandName="Info">查看</asp:LinkButton>

prt后台：

protected void rptList_ItemCommand(object source, RepeaterCommandEventArgs e)

{
    if(e.CommandName == "Info")
    {
       Response.Redirect("DictionaryInfo.aspx?type_id="+e.CommandArgument.ToString());
    }
}

 3. 选择被checkbox选中的行，并获取选中行的特定值

    前台代码：           
             <ItemTemplate>
                     <tr class="tbrow">
                            <td class="tbpost"><asp:CheckBox ID="cbx" runat="server"/></td>
                            <td class="tbpost"><asp:Label runat="server" ID="lblShareCode" Text='<%#Eval("ShareCode") %>'></asp:Label></td>  //要被获取的值
                            <td class="tbpost"><%#Eval("ShareName") %></td>
                            <td class="tbpost"><asp:Label runat="server" ID="lblMarketCode" Text='<%#Eval("MarketCode") %>'></asp:Label></td> //要被获取的值
                            <td class="tbpost"><%#Eval("MarketName") %></td>
                            <td class="tbpost"><%#GetIsBlack(Eval("IsBlackList"))%></td>                          
                        </tr>
             </ItemTemplate>

后台代码：
 protected void btnBlack_Click(object sender, EventArgs e)
        {
            string shareCodes = "";
            string marketCodes = "";
            foreach (RepeaterItem item in rptvirtualShare.Items)  //遍历repeat所有行
            {
                if (item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem)
                {
                    var cbx = item.FindControl("cbx") as CheckBox;  //选取Id为cbx的CheckBox
                    if (cbx.Checked)
                    {
                        var lbl_shareCode = item.FindControl("lblShareCode") as Label;  //选取id为lblShareCode的Label
                        shareCodes += lbl_shareCode.Text + ";";
                        var lbl_marketCode = item.FindControl("lblMarketCode") as Label;
                        marketCodes += lbl_marketCode.Text + ";";
                    }
                }
            }        
            if (scp != null)
            {
                msg.Show("设置成功！");
            }
            else
            {
                msg.Show("设置失败！请重新尝试！");
            }
        }

　　3.合并repeat的表格 （转至：http://www.cnblogs.com/gdjlc/p/3491102.html）

（效果图）

 

（代码）

前台代码

<asp:Repeater runat="server" ID="rptList">         
<HeaderTemplate>
   <table width="100%" border="1" cellpadding="4" cellspacing="0" bgcolor="#464646" style="border-collapse:collapse; padding:0; margin:0">  
       <tr bgcolor="#eeeeee">  
           <td>序号</td> 
           <td>类型</td>
           <td>操作</td>
           <td>编号</td>                                        
       </tr>   
</HeaderTemplate>                 
  <ItemTemplate>
   <tr bgcolor="#ffffff">                                   
           <td><%# Eval("rn") %></td>
           <td runat="server" id="td1"><%#Eval("Col1")%></td>
           <td runat="server" id="td2"><%#Eval("Col2")%></td>
           <td><%#Eval("Col3")%></td> 
           <td><%#Eval("Col4")%></td> 
       </tr>
  </ItemTemplate>   
  <FooterTemplate>
     </table>  
  </FooterTemplate>                       
</asp:Repeater>

 （后台代码）

private void BindData()
{
    rptList.DataSource = null; //这里为数据源，省略...
    rptList.DataBind();  
    MergeCell("td1", "td2");
}
private void MergeCell(string tdIdName1, string tdIdName2)
{
    for (int i = rptList.Items.Count - 1; i > 0; i--)
    {
        MergeCellSet(tdIdName1, tdIdName2, i);
    }
}
private void MergeCellSet(string tdIdName1, string tdIdName2, int i)
{
    HtmlTableCell cellPrev = rptList.Items[i - 1].FindControl(tdIdName1) as HtmlTableCell;
    HtmlTableCell cell = rptList.Items[i].FindControl(tdIdName1) as HtmlTableCell;
    cell.RowSpan = (cell.RowSpan == -1) ? 1 : cell.RowSpan;
    cellPrev.RowSpan = (cellPrev.RowSpan == -1) ? 1 : cellPrev.RowSpan;
    if (cell.InnerText == cellPrev.InnerText)
    {
        cell.Visible = false;
        cellPrev.RowSpan += cell.RowSpan;
 
        //关键代码，再判断执行第2列的合并单元格方法
        if (tdIdName2 != "") MergeCellSet(tdIdName2, "", i);
    }
}