我这样写为什么就不对呢?
="SELECT CheckID, UserID, CheckCode, numPratInID, UpStoreID FROM Store_CheckCode "&Iif(Parameters!ViewTime.Value Is Nothing,""," WHERE (CheckTime='"&Parameters!ViewTime.Value&"')")&" ORDER BY CheckID DESC"错误信息
[BC30277] 类型字符“&”与声明的数据类型“System.Object”不匹配。
="SELECT CheckID, UserID, CheckCode, numPratInID, UpStoreID FROM Store_CheckCode "&Iif(Parameters!ViewTime.Value Is Nothing,""," WHERE (CheckTime='"&Parameters!ViewTime.Value&"')")&" ORDER BY CheckID DESC"错误信息
[BC30277] 类型字符“&”与声明的数据类型“System.Object”不匹配。
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