Question

我正在将一个经典的asp网站转换为.NET，并且可以对这个问题使用一些建议。

原始代码：

Dim oCountCMD
oCountCMD = Server.CreateObject("ADODB.Command")
With oCountCMD
    .ActiveConnection = Application("ConnString")
    .CommandText = "sp_GetSearchHistoryCount"
    .CommandType = .CommandType.StoredProcedure
    .oCountCMD(1) = strUser
    .oCountCMD(2) = DateAdd("n", -1, Now())
    .Execute()

    If oCountCMD(0) > 60 Then
        CheckSearchCounts = True
    Else
        CheckSearchCounts = False
    End If
End With
oCountCMD = Nothing

我未完成的转换代码：

Dim objConnection As New SqlConnection(Application("ConnString"))
Dim oCountCMD As New SqlCommand("sp_GetSearchHistoryCount", objConnection)

With oCountCMD
    .CommandType = CommandType.StoredProcedure

    .Parameters.Add(New SqlParameter("@UserName", SqlDbType.VarChar, 20))
    .Parameters("@UserName").Value = strUser

    .Parameters.Add(New SqlParameter("@SearchDt", SqlDbType.DateTime))
    .Parameters("@SearchDt").Value = DateAdd("n", -1, Now())

    // need to execute here, and find number of rows/records returned
End With

如何捕获执行此存储过程时返回的行数？

Answer 1

尝试

Dim theCount Integer 
theCount = .ExecuteScalar()

Answer 2

感谢您的评论更新。

如果存储过程的响应是单个值，那么您需要执行已设置的SqlCommand。如果您在此命令上ExecuteScaler()，那么它将返回单个Sql类型，最有可能返回int，然后您可以将其转换为.net值。

希望它有所帮助： - ）

Answer 3

Dim countEffected As Integer=0

With oCountCMD
    .CommandType = CommandType.StoredProcedure    
    .Parameters.Add(New SqlParameter("@UserName", SqlDbType.VarChar, 20, strUser))       
    .Parameters.Add(New SqlParameter("@SearchDt", SqlDbType.DateTime,,DateAdd("n", -1, Now())))

    countEffected = .ExecuteScalar()    
End With

'return true/false as previous VB6 did.
CheckSearchCounts = countEffected > 60

asp-classic到.NET转换...我可以使用一些建议

3 个答案: