我的要求是将DataList显示为
Header1 Header2 Header1 Header2
1 Value 1 3 Value 3
2 Value 2 4 Value 4
但是我无法重复数据列表的标题部分。 我对datalist的完整代码是
<asp:DataList ID="datalstProfileCount" runat="server" RepeatColumns="2" RepeatDirection="Horizontal"
RepeatLayout="Table" ShowHeader="true" OnItemDataBound="datalstProfileCount_ItemDataBound">
<HeaderTemplate>
<table border="0" cellpadding="0" cellspacing="0" bordercolor="#e1e1e0" style="border: solid 1px #e1e1e0;
font-family: Segoe UI; font-size: 12px; font-weight: bold; width: 400px">
<tr style="font-size: 13px; background: #ffedc2; border-bottom: 1px solid #eba602;
border-left: 1px solid #d6d6d6; font-weight: 600; font-size: 13px; padding: 10px 8px;
color: #c82124;">
<td style="width: 80px; color: #c84241; text-align: center; padding: 6px">
Name
</td>
<td style="width: 100px; color: #c84241; text-align: center; padding: 6px">
Total Count
</td>
<td style="width: 100px; color: #c84241; text-align: center; padding: 6px">
Active Members Count
</td>
</tr>
</table>
</HeaderTemplate>
<ItemTemplate>
<table border="0" cellpadding="0" cellspacing="0" bordercolor="#e1e1e0" style="border: solid 1px #e1e1e0;
font-family: Segoe UI; font-size: 12px; font-weight: bold; width: 400px; margin: -1px">
<tr style="font-size: 12px; vertical-align: middle; color: #9d9d9c;">
<td style="text-align: left; width: 80px; color: #333333; padding: 6px">
<asp:Label ID="Label2" runat="server" Text='<%#Eval("Name") %>'></asp:Label>
</td>
<td style="text-align: right; width: 100px; color: #333333; padding: 6px">
<asp:Label ID="lblTotalCount" runat="server" Text='<%#Eval("TotalCount") %>'></asp:Label>
</td>
<td style="text-align: right; width: 100px; color: #333333; padding: 6px">
<asp:Label ID="lblActiveMembersCount" runat="server" Text='<%#Eval("ActiveMembersCount") %>'></asp:Label>
</td>
</tr>
</table>
</ItemTemplate>
<FooterTemplate>
<table border="0" cellpadding="0" cellspacing="0" style="padding-top: 20px" align="center">
<tr>
<td style="font-size: 14px">
Total Count:
</td>
<td style="padding-left: 10px">
<asp:Label ID="lblProfileCount" runat="server" Text="" ForeColor="#C82124" Font-Size="14px"></asp:Label>
</td>
</tr>
<tr>
<td style="font-size: 14px">
Active Members Count:
</td>
<td style="padding-left: 10px">
<asp:Label ID="lblMemberCount" runat="server" Text="" ForeColor="#C82124" Font-Size="14px"></asp:Label>
</td>
</tr>
</table>
</FooterTemplate>
</asp:DataList>
请你们中的任何人帮助我..并提前感谢你们......
答案 0 :(得分：0)
添加＆＃39;如果datalistName.Items.Count＆gt; 1＆＃39;代码示例：
<HeaderTemplate>
<table>
<tr><td>Header1</td><td>Header2</td></tr>
<%If (data_list_name.Items.Count() > 1) {%>
<tr><td>Header1</td><td>Header2</td></tr>
<%}%>
</table>
</HeaderTemplate>
答案 1 :(得分：-1)
标题永远不会重复，将标题HTML作为项目模板的一部分。根据.Net Controls实现，Header是你的列表的头部只会来一次，然后你的项目模板将根据数据源中存在的项目数重复，然后是页脚..
这样的事情：
<asp:DataList ID="datalstProfileCount" runat="server" RepeatColumns="2" RepeatDirection="Horizontal" RepeatLayout="Table" ShowHeader="true" OnItemDataBound="datalstProfileCount_ItemDataBound">
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
//Header Section
//Data
</ItemTemplate>
</asp:DataList>
如果您仍然有一些困惑与评论中提到的标题部分和数据部分共享您的整个数据列表，我将为您提供更新的代码..
更新的答案：
<asp:DataList ID="datalstProfileCount" runat="server" RepeatColumns="2" RepeatDirection="Horizontal"
RepeatLayout="Table" ShowHeader="true" OnItemDataBound="datalstProfileCount_ItemDataBound">
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<table border="0" cellpadding="0" cellspacing="0" bordercolor="#e1e1e0" style="border: solid 1px #e1e1e0;
font-family: Segoe UI; font-size: 12px; font-weight: bold; width: 400px; margin: -1px">
<tr style="font-size: 13px; background: #ffedc2; border-bottom: 1px solid #eba602;
border-left: 1px solid #d6d6d6; font-weight: 600; font-size: 13px; padding: 10px 8px;
color: #c82124; visibility: hidden;" id="trHeader" runat="server">
<td style="width: 80px; color: #c84241; text-align: center; padding: 6px">
Name
</td>
<td style="width: 100px; color: #c84241; text-align: center; padding: 6px">
Total Count
</td>
<td style="width: 100px; color: #c84241; text-align: center; padding: 6px">
Active Members Count
</td>
</tr>
<tr style="font-size: 12px; vertical-align: middle; color: #9d9d9c;">
<td style="text-align: left; color: #333333; padding: 6px">
<asp:Label ID="Label2" runat="server" Text='<%#Eval("Name") %>'></asp:Label>
</td>
<td style="text-align: right; color: #333333; padding: 6px">
<asp:Label ID="lblTotalCount" runat="server" Text='<%#Eval("TotalCount") %>'></asp:Label>
</td>
<td style="text-align: right; color: #333333; padding: 6px">
<asp:Label ID="lblActiveMembersCount" runat="server" Text='<%#Eval("ActiveMembersCount") %>'></asp:Label>
</td>
</tr>
</table>
</ItemTemplate>
<FooterTemplate>
<table border="0" cellpadding="0" cellspacing="0" style="padding-top: 20px" align="center">
<tr>
<td style="font-size: 14px">
Total Count:
</td>
<td style="padding-left: 10px">
<asp:Label ID="lblProfileCount" runat="server" Text="" ForeColor="#C82124" Font-Size="14px"></asp:Label>
</td>
</tr>
<tr>
<td style="font-size: 14px">
Active Members Count:
</td>
<td style="padding-left: 10px">
<asp:Label ID="lblMemberCount" runat="server" Text="" ForeColor="#C82124" Font-Size="14px"></asp:Label>
</td>
</tr>
</table>
</FooterTemplate>
</asp:DataList>
在服务器端添加以下代码：
protected void datalstProfileCount_ItemDataBound(Object sender, DataListItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
if(e.Item.ItemIndex <=1)
{
var headerRow = (System.Web.UI.HtmlControls.HtmlTableRow)e.Item.FindControl("trHeader");
if(headerRow != null)
{
headerRow.Style.Add(HtmlTextWriterStyle.Visibility, "");
}
}
}
}
您可能需要对样式进行一些更改，但也可以实现。