添加一个名称来选择

Question

我有这样的SQL命令：

SELECT Jmeno, 
COUNT(CASE WHEN Ucast = 'TRUE' then 1 end) as Pocet_zapasu, 
SUM(CASE WHEN Branky>=0 then Branky end) as branek 
FROM Hraci 
INNER JOIN Ucast_Zapas ON Ucast_Zapas.ID_Hrace_zapas=Hraci.IDHrace 
INNER JOIN Zapas ON Zapas.ID_zapas=Ucast_Zapas.ID_zapasu_ucast 
INNER JOIN Kategorie ON Kategorie.IDkategorie=Zapas.Kategorie_zapas 
WHERE (Zapas.Druh=1) GROUP BY Jmeno 

但是，当我在列表视图中使用这个命令：

<asp:ImageButton ID="Image2" runat="server" ImageUrl="~/Icons/edit.png" PostBackUrl='<%#string.Format("/Default3.aspx?id={0}",Eval("IDHrace"))%>' /> 

我有这样的错误：

DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'IDHrace'. 

因为在sqlcommand缺少Hraci.IDHrace ...但我不知道为什么我给Hraci.IDHrace先前的sqlcommand .. 你有没有你的想法？

Answer 1

您的查询不返回IDHrace。

你应该包括在您的SELECT声明：

SELECT 
Hraci.IDHrace, 
Jmeno, 
COUNT(CASE WHEN Ucast = 'TRUE' then 1 end) as Pocet_zapasu, 
SUM(CASE WHEN Branky>=0 then Branky end) as branek 
FROM Hraci 
INNER JOIN Ucast_Zapas ON Ucast_Zapas.ID_Hrace_zapas=Hraci.IDHrace 
INNER JOIN Zapas ON Zapas.ID_zapas=Ucast_Zapas.ID_zapasu_ucast 
INNER JOIN Kategorie ON Kategorie.IDkategorie=Zapas.Kategorie_zapas 
WHERE (Zapas.Druh=1) GROUP BY Jmeno, Hraci.IDHRace 

Answer 2

你需要在你的SQL语句来选择IDHrace