我在那些办公室里有一个医生办公室和医生的桌子,我正在填写转发器控件。返回的数据未汇总。所以,如果1个办公室有2名医生,则有2排,同一个办公室,不同的医生。
有没有办法汇总数据,以便转发器与该办公室的所有医生一起显示1个办公室,这样我可以避免重复?
答案 0 :(得分:1)
在你的aspx标记中:
<table><tr><th>Office</th><th>Doctors</th></tr>
<asp:repeater id="Repeater" runat="server" OnItemDataBound="NextItem" ... >
<ItemTemplate><asp:Literal id="RepeaterRow" runat="server" />
</ItemTemplate>
</asp:repeater>
<asp:Literal id="LastRow" runat="server" />
</table>
在你的代码背后:
public class Office
{
public string OfficeName {get;set;};
List<string> _doctors = new List<string>();
public List<string> Doctors {get{ return _doctors; } };
void Clear()
{
OfficeName = "";
_doctors.Clear();
}
public override string ToString()
{
StringBuilder result = new StringBuilder("<tr>");
result.AppendFormat("<td>{0}</td>", OfficeName);
string delimiter = "";
result.Append("<td>");
foreach(string doctor in Doctors)
{
result.Append(doctor).Append(delimiter);
delimiter = "<br/>";
}
result.Append("</td></tr>");
return result.ToString();
}
}
。
private string CurOffice = "";
private Office CurRecord = new Office();
void NextItem(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType != ListItemType.Item && e.Item.ItemType != ListItemType.AlternatingItem) return;
Literal repeaterRow = e.Item.FindControl("RepeaterRow") as Literal;
if (repeaterRow == null) return;
DataRow row = ((DataRowView)e.Item.DataItem).Row;
if ( CurOffice != (string)row["Office"] )
{
repeaterRow.Text = CurRecord.ToString();
repeaterRow.Visible = true;
CurRecord.Clear();
CurOffice = row["Office"];
CurRecord.Office = CurOffice;
}
else
e.Item.Visible = false;
CurRecord.Doctors.Add((string)row["doctor"]);
}
void Page_PreRender(object sender, EventArgs e)
{
LastRow.Text = CurRecord.ToString();
}
答案 1 :(得分:0)
我认为你最好在数据库中进行聚合。
答案 2 :(得分:0)
我正在考虑这一点,但认为可能有更好的方法来做到这一点。
如果在db中聚合,则传递一个delimeted列并在数据绑定期间解析它?
答案 3 :(得分:0)
使用SQL合并功能
从SQLTeam.com开始:
DECLARE @EmployeeList varchar(100)
SELECT @EmployeeList = COALESCE(@EmployeeList + ', ', '') +
CAST(Emp_UniqueID AS varchar(5))
FROM SalesCallsEmployees
WHERE SalCal_UniqueID = 1
这将创建一个逗号分隔的员工列表。你也可以为医生这样做