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ASP.Net中使用VB.Net调用存储过程并得到返回值

  //存储过程代码

  CREATE PROCEDURE [AddNewInvoiceInfo] (@sUserID int,@sClaimMethod varchar(50),@sInvoiceNum

  varchar(50),@sInvoiceDate datetime,@sBuyCity varchar(50))AS

  Insert Into SMB_InvoiceInfo (MemberID,ClaimMethod,InvoiceNum,InvoiceDate,InvoiceCity) Values

  (@sUserID,@sClaimMethod,@sInvoiceNum,@sInvoiceDate,@sBuyCity)

  return @@IDENTITY

  GO

  //调用存储过程代码

  Dim CN As New SqlConnection()

  Dim InvoiceID As String

  Try

  CN.ConnectionString = DBConStr

  CN.Open()

  Dim CMD As SqlCommand

  CMD = New SqlCommand(AddNewInvoiceInfo, CN)

  CMD.CommandType = CommandType.StoredProcedure

  CMD.Parameters.Add(New SqlParameter(@sUserID, SqlDbType.Int))

  CMD.Parameters(@sUserID).Value = CInt(UserID.Text)

  CMD.Parameters.Add(New SqlParameter(@sClaimMethod, SqlDbType.VarChar, 50))

  CMD.Parameters(@sClaimMethod).Value = TransName.Text

  CMD.Parameters.Add(New SqlParameter(@sInvoiceNum, SqlDbType.VarChar, 50))

  CMD.Parameters(@sInvoiceNum).Value = InvoiceNum.Text

  CMD.Parameters.Add(New SqlParameter(@sInvoiceDate, SqlDbType.DateTime))

  CMD.Parameters(@sInvoiceDate).Value = InvoiceDate.SelectedDate.Date

  CMD.Parameters.Add(New SqlParameter(@sBuyCity, SqlDbType.VarChar, 50))

  CMD.Parameters(@sBuyCity).Value = BuyCity.Text

  CMD.Parameters.Add(New SqlParameter(@sInvoiceID, SqlDbType.Int))

  CMD.Parameters(@sInvoiceID).Direction = ParameterDirection.ReturnValue

  CMD.ExecuteNonQuery()

  InvoiceID = CMD.Parameters(@sInvoiceID).Value.ToString()

  CMD.Dispose()

  Catch ex As Exception

  Response.Write(ex.ToString())

  Finally

  CN.Close()

  End Try

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