ASP.Net中使用VB.Net调用存储过程并得到返回值
来源：qqread论坛 作者： 出处：巧巧读书 2006-08-03 进入讨论组
//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
&
概念：其实思路非常简单，就像画画一样，你脑中的饼图想啥样子的，就把它在网页里画出来而已。相信大家小时候都画过画，不同的是，小时候，在纸上画，现在在网页上画。
这是我脑子里饼图的样子：<激光传真机>
C#后台示例代码：<激光一体机>
using System;
using System.Data;
using System.Configur ......
