我想從數據庫檢索數據並顯示它在我的HTML表,但我得到的錯誤。C#如何做Linq查詢
foreach語句是這樣的:
foreach(PFEvent events in con.PFEvents)
{
DataRow row = dt.NewRow();
row["Sport"] = events.Sport;
row["Description"] = events.Description;
row["Date"] = events.Date.ToString();
row["Time"] = events.Time.ToString();
row["Status"] = events.Status;
row["Stadium Name"] = from PFStadium in con.PFStadiums
join PFEvent in con.PFEvents on PFStadium.Stadium_ID equals events.Stadium_ID
select PFStadium.StadiumName;
dt.Rows.Add(row);
}
這是問題的代碼,而一切返回這是什麼意思返回:
row["Stadium Name"] = from PFStadium in con.PFStadiums
join PFEvent in con.PFEvents on PFStadium.Stadium_ID equals events.Stadium_ID
select PFStadium.StadiumName;
該查詢返回這樣的值:
SELECT [t0].[StadiumName] FROM [dbo].[PFStadium] AS [t0] INNER JOIN [dbo].[PFEvent] AS [t1] ON ([t0].[Stadium_ID]) = @p0
我想返回球場名稱,但它給了我一個查詢作爲返回ñ。我如何解決這個問題?
什麼樣的物體是PFEvents和PFStadium? – McNets
'row [「Stadium Name」] = from PFStadium ...'查詢返回一個'Enumerable'(即使它返回一個元素)。調用'.First()'或'ToArray()[0]'獲得第一個 – rbm
它們是使用通過數據上下文網關創建數據來調用的表類。 –