Question

我有这个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listview中使用这个命令时：

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

我有这个错误：

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

因为在sqlcommand中缺少Hraci.IDHrace ...但我不知道为什么我将Hraci.IDHrace提供给以前的sqlcommand .. 你知道吗？

Answer 1

您的查询未返回IDHrace。

您应该将其包含在SELECT声明中：

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

您需要在sql语句中选择IDHrace

为Select添加一个名称

2 个答案: