LinqDataSource與複雜的SQL

我有一個相當長的SQL語句組合給我一個3行結果，我想在Telerik Ticker中使用。據我所見，Telerik Ticker只接受Linq或Entity數據源。LinqDataSource與複雜的SQL

所以我有一個代碼爲DataSourceID = "LinqDataSource1"其中有一個OnSelecting事件。

我的代碼背後都有...

Protected Sub LinqDataSource1_Selecting(sender As Object, e As LinqDataSourceSelectEventArgs) Handles LinqDataSource1.Selecting 

Dim db As New TestDataContext 

Dim tickerquery As New StringBuilder 

tickerquery.Append("DECLARE @ALL_Total int ") 
tickerquery.Append("DECLARE @ABC_Total int ") 
tickerquery.Append("DECLARE @XYZ_Total int ") 
tickerquery.Append("DECLARE @ALL_TypeA int ") 
tickerquery.Append("DECLARE @ABC_TypeA int ") 
tickerquery.Append("DECLARE @XYZ_TypeA int ") 
tickerquery.Append("DECLARE @ALL_TypeB int ") 
tickerquery.Append("DECLARE @ABC_TypeB int ") 
tickerquery.Append("DECLARE @XYZ_TypeB int ") 
tickerquery.Append("DECLARE @ALL_TypeC int ") 
tickerquery.Append("DECLARE @ABC_TypeC int ") 
tickerquery.Append("DECLARE @XYZ_TypeC int ") 
tickerquery.Append("DECLARE @ALL_TypeD int ") 
tickerquery.Append("DECLARE @ABC_TypeD int ") 
tickerquery.Append("DECLARE @XYZ_TypeD int ") 
tickerquery.Append("DECLARE @ALL_TypeE int ") 
tickerquery.Append("DECLARE @ABC_TypeE int ") 
tickerquery.Append("DECLARE @XYZ_TypeE int ") 

tickerquery.Append("DECLARE @ALL_Title nvarchar(3) ") 
tickerquery.Append("DECLARE @ABC_Title nvarchar(3) ") 
tickerquery.Append("DECLARE @XYZ_Title nvarchar(3) ") 
tickerquery.Append("SET @ALL_Title = 'ALL' ") 
tickerquery.Append("SET @ABC_Title = 'ABC' ") 
tickerquery.Append("SET @XYZ_Title = 'XYZ' ") 
tickerquery.Append("DECLARE @Count_Tbl table (Title nvarchar(3), Total int, TypeA int, TypeB int, TypeC int, TypeD int, TypeE int) ") 

tickerquery.Append("SELECT @ALL_Total = (SELECT Count(ProdID) FROM Products) ") 
tickerquery.Append("SELECT @ABC_Total = (SELECT Count(ProdID) FROM Products WHERE Category = 'ABC') ") 
tickerquery.Append("SELECT @XYZ_Total = (SELECT Count(ProdID) FROM Products WHERE Category = 'XYZ') ") 
tickerquery.Append("SELECT @ALL_TypeA = (SELECT Count(ProdID) FROM Products WHERE Productstatus = 'TypeA') ") 
tickerquery.Append("SELECT @ABC_TypeA = (SELECT Count(ProdID) FROM Products WHERE Category = 'ABC' AND Productstatus = 'TypeA') ") 
tickerquery.Append("SELECT @XYZ_TypeA = (SELECT Count(ProdID) FROM Products WHERE Category = 'XYZ' AND Productstatus = 'TypeA') ") 
tickerquery.Append("SELECT @ALL_TypeB = (SELECT Count(ProdID) FROM Products WHERE Productstatus = 'TypeB') ") 
tickerquery.Append("SELECT @ABC_TypeB = (SELECT Count(ProdID) FROM Products WHERE Category = 'ABC' AND Productstatus = 'TypeB') ") 
tickerquery.Append("SELECT @XYZ_TypeB = (SELECT Count(ProdID) FROM Products WHERE Category = 'XYZ' AND Productstatus = 'TypeB') ") 
tickerquery.Append("SELECT @ALL_TypeC = (SELECT Count(ProdID) FROM Products WHERE Productstatus = 'TypeC') ") 
tickerquery.Append("SELECT @ABC_TypeC = (SELECT Count(ProdID) FROM Products WHERE Category = 'ABC' AND Productstatus = 'TypeC') ") 
tickerquery.Append("SELECT @XYZ_TypeC = (SELECT Count(ProdID) FROM Products WHERE Category = 'XYZ' AND Productstatus = 'TypeC') ") 
tickerquery.Append("SELECT @ALL_TypeD = (SELECT Count(ProdID) FROM Products WHERE Productstatus = 'TypeD') ") 
tickerquery.Append("SELECT @ABC_TypeD = (SELECT Count(ProdID) FROM Products WHERE Category = 'ABC' AND Productstatus = 'TypeD') ") 
tickerquery.Append("SELECT @XYZ_TypeD = (SELECT Count(ProdID) FROM Products WHERE Category = 'XYZ' AND Productstatus = 'TypeD') ") 
tickerquery.Append("SELECT @ALL_TypeE = (SELECT Count(ProdID) FROM Products WHERE Productstatus <> 'TypeD') ") 
tickerquery.Append("SELECT @ABC_TypeE = (SELECT Count(ProdID) FROM Products WHERE Category = 'ABC' AND Productstatus = 'TypeE') ") 
tickerquery.Append("SELECT @XYZ_TypeE = (SELECT Count(ProdID) FROM Products WHERE Category = 'XYZ' AND Productstatus = 'TypeE') ") 

tickerquery.Append("INSERT INTO @Count_Tbl (Title, Total, TypeA, TypeB, TypeC, TypeD, TypeE SELECT @ALL_Title, @ALL_Total, @ALL_TypeA, @ALL_TypeB, @ALL_TypeC, @ALL_Decomm, @ALL_Running ") 

tickerquery.Append("INSERT INTO @Count_Tbl (Title, Total, TypeA, TypeB, TypeC, TypeD, TypeE SELECT @ABC_Title, @ABC_Total, @ABC_TypeA, @ABC_TypeB, @ABC_TypeC, @ABC_Decomm, @ABC_Running ") 

tickerquery.Append("INSERT INTO @Count_Tbl (Title, Total, TypeA, TypeB, TypeC, TypeD, TypeE SELECT @XYZ_Title, @XYZ_Total, @XYZ_TypeA, @XYZ_TypeB, @XYZ_TypeC, @XYZ_Decomm, @XYZ_Running ") 

tickerquery.Append("SELECT Title, Total, TypeA, TypeB, TypeC, TypeD, TypeE FROM @Count_Tbl") 

Dim results As IEnumerable(Of ProductCount) = _ 
    db.ExecuteQuery(Of ProductCount) _ 
    (tickerquery.ToString) 

e.Result = results 
End Sub

我得到的錯誤是

Incorrect syntax near the keyword 'SELECT'. 
Incorrect syntax near the keyword 'SELECT'. 
Incorrect syntax near the keyword 'SELECT'. at the tickerquery.ToString line

有沒有得到結果，使他們能夠綁定到北京時間的另一種方式？

來源

2013-07-25 Mych

嗨，我明白了有些變量沒有聲明：ALL_Decomm，ABC_Decomm，XYZ_Decomm，ALL_Running，ABC_Running，XYZ_Running –

@jyparask謝謝......我已經改變了變量的名稱，使它們更容易閱讀（所有長度相同）並錯過了一些。全部糾正。正如我所提到的，SQL是可以的，因爲我已經在SQL Manager中運行了這些語句，並且得到了所需的3行返回。 – Mych

您可以嘗試在SSMS中運行tickerquery.ToString（）的結果。有一個斷點，並在即時窗口中寫入？tickerquery.ToString（）。將結果放入SM中並運行。你得到的錯誤似乎與SQL解析器，所以更好看看結果。 –

已修復......在我轉換爲一系列附加到字符串生成器的過程中，我刪除了3個插入語句中的一些右括號。

我

tickerquery.Append（「INSERT INTO @Count_Tbl（標題，道達爾，類型A，類型B，TypeC，打字，鍵入e SELECT @ABC_Title，@ABC_Total，@ABC_TypeA，@ABC_TypeB，@ABC_TypeC，@ ABC_Decomm，@ABC_Running 「）

，我應該有

tickerquery.Append（」 INSERT INTO @Count_Tbl（標題，道達爾，類型A，類型B，TypeC，打字，鍵入e）選擇@ABC_Title，@ABC_Total， @ABC_TypeA，@ABC_TypeB，@ABC_TypeC，@ABC_Decomm，@ABC_Running「）

來源

2013-07-25 13:10:19 Mych

LinqDataSource與複雜的SQL

回答

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