我有一个中继器,它创建一个按完成日期排序的任务列表。
<asp:Repeater ID="rptCompletedProjectTasks" OnItemDataBound="rptCompletedProjectTasks_ItemDataBound" runat="server">
<HeaderTemplate>
<h3>Completed Tasks</h3>
<table class="projTaskTable">
<tr>
<th style="width:100px">W/C</th>
<th style="width:450px">Description</th>
<th style="width:100px">Due</th>
<th style="width:100px">Completed</th>
<th style="width:50px">Var</th>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td><asp:Label ID="lblWeek" runat="server" Text=''></asp:Label></td>
<td><%# Eval("description") %></td>
<td><%# Eval("deadline", "{0:d MMM yy}") %></td>
<td><asp:Label ID="lblCompleted" runat="server" Text='<%# Eval("completedDate", "{0:d MMM yy}") %>'></asp:Label></td>
<td><%# Eval("var") %></td>
</tr>
</ItemTemplate>
<FooterTemplate></table></FooterTemplate>
</asp:Repeater>
我想按周对已完成的任务进行可视化分组,一周开始日期在一组任务的第一行的左列中,而在一周发生变化之前,其他任何内容都没有。IE
我正在尝试检查上一项的 WeekCommencing 值,并且仅在 lblWeek 控件与使用 OnItemDataBound 的上一行的值不同时才更新它:
protected void rptCompletedProjectTasks_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
DateTime weekCommencing = new DateTime(1970, 1, 1);
if ((e.Item.ItemType != ListItemType.Header) && (e.Item.ItemType != ListItemType.Footer))
{
Label completedDate = e.Item.FindControl("lblCompleted") as Label;
Label lblWeekCommencing = e.Item.FindControl("lblWeek") as Label;
DateTime completed = Convert.ToDateTime(completedDate.Text);
if (completed != weekCommencing)
{
lblWeekCommencing.Text = getWeekCommencing(completed).ToString("d MMM");
}
else
{
lblWeekCommencing.Text = "";
}
weekCommencing = completed;
}
我用来获取一周开始日期的函数是:
protected DateTime getWeekCommencing(DateTime date)
{
int delta = DayOfWeek.Monday - date.DayOfWeek;
DateTime monday = date.AddDays(delta);
return monday;
}