包含附加變量的C＃命令

Question

我在將變量加工到現有代碼片段時遇到問題。我確定它很簡單，但我沒有得到任何答案。

這是當前代碼，這沒有錯誤：

new SqlCommand(@"xp_cmdshell 'bcp ""SELECT tipReportingSummaryView.payGroupCode, employee.employeeFName + '' '' + employee.employeeLName AS employeeName, tipReportingSummaryView.employeeID, SUM(tipReportingSummaryView.netChargeTips) AS netChargeTips, tipReportingSummaryView.positionCode, rvc.rvcName, ''CHG TIPS'' AS tipType FROM tipReportingSummaryView INNER JOIN employee ON tipReportingSummaryView.employeeID = employee.employeeID INNER JOIN rvc ON tipReportingSummaryView.rvcID = rvc.rvcID WHERE (tipReportingSummaryView.businessDate >= (dateadd(day,(-15),datediff(day,(0),getdate())))) AND (tipReportingSummaryView.businessDate <= (dateadd)) AND (tipReportingSummaryView.payGroupCode = 1) GROUP BY tipReportingSummaryView.payGroupCode, employee.employeeFName + employee.employeeLName, tipReportingSummaryView.employeeID, tipReportingSummaryView.positionCode, rvc.rvcName, employee.employeeFName + '' '' + employee.employeeLName HAVING SUM(tipReportingSummaryView.netChargeTips) <> 0"" queryout " + filePath + " -U sa -P password -c -t ,'", conn)) 

我想要（tipReportingSummaryView.payGroupCode =），以等於payGroup變量的值，所以是這樣的：

new SqlCommand(@"xp_cmdshell 'bcp ""SELECT tipReportingSummaryView.payGroupCode, employee.employeeFName + '' '' + employee.employeeLName AS employeeName, tipReportingSummaryView.employeeID, SUM(tipReportingSummaryView.netChargeTips) AS netChargeTips, tipReportingSummaryView.positionCode, rvc.rvcName, ''CHG TIPS'' AS tipType FROM tipReportingSummaryView INNER JOIN employee ON tipReportingSummaryView.employeeID = employee.employeeID INNER JOIN rvc ON tipReportingSummaryView.rvcID = rvc.rvcID WHERE (tipReportingSummaryView.businessDate >= (dateadd(day,(-15),datediff(day,(0),getdate())))) AND (tipReportingSummaryView.businessDate <= (dateadd)) AND (tipReportingSummaryView.payGroupCode = " + payGroup + ") GROUP BY tipReportingSummaryView.payGroupCode, employee.employeeFName + employee.employeeLName, tipReportingSummaryView.employeeID, tipReportingSummaryView.positionCode, rvc.rvcName, employee.employeeFName + '' '' + employee.employeeLName HAVING SUM(tipReportingSummaryView.netChargeTips) <> 0"" queryout " + filePath + " -U sa -P password -c -t ,'", conn)) 

摘要版

電流：

(tipReportingSummaryView.payGroupCode =1) 

期望：

(tipReportingSummaryView.payGroupCode = " + payGroup + ") 

通過添加「+ payGroup +」，我得到在該行各類語法錯誤，所以它顯然使其彈了出來。

歡迎任何建議。

Answer 1

您需要在第二個字符串文字之前放置另一個@否則，雙引號將無法編譯（它會認爲它是兩個文字背對背） - 如下所示。

隔離：" + payGroup + @"

new SqlCommand(@"xp_cmdshell 'bcp ""SELECT tipReportingSummaryView.payGroupCode, employee.employeeFName + '' '' + employee.employeeLName AS employeeName, tipReportingSummaryView.employeeID, SUM(tipReportingSummaryView.netChargeTips) AS netChargeTips, tipReportingSummaryView.positionCode, rvc.rvcName, ''CHG TIPS'' AS tipType FROM tipReportingSummaryView INNER JOIN employee ON tipReportingSummaryView.employeeID = employee.employeeID INNER JOIN rvc ON tipReportingSummaryView.rvcID = rvc.rvcID WHERE (tipReportingSummaryView.businessDate >= (dateadd(day,(-15),datediff(day,(0),getdate())))) AND (tipReportingSummaryView.businessDate <= (dateadd)) AND (tipReportingSummaryView.payGroupCode = " + payGroup + @") GROUP BY tipReportingSummaryView.payGroupCode, employee.employeeFName + employee.employeeLName, tipReportingSummaryView.employeeID, tipReportingSummaryView.positionCode, rvc.rvcName, employee.employeeFName + '' '' + employee.employeeLName HAVING SUM(tipReportingSummaryView.netChargeTips) <> 0"" queryout " + filePath + @" -U sa -P password -c -t ,'", conn)) 

最好放在一個文件路徑串聯後也。

請參閱「逐字字符串」在這裏：MSDN Page On Strings（對不起，找不到一個頁面專門爲他們）

編輯：類似這樣的問題here