1．调用存储过程，但无返回值

复制代码 代码如下:

Private Function SqlProc1(ByVal ProcName As String) As Boolean

'定义数据链接部分省略, myConn为链接对象 ProcName为存储过程名

Dim myCommand As New SqlClient.SqlCommand(ProcName, myConn)

With myCommand

.CommandType = CommandType.StoredProcedure

.Parameters.Add("@CodeType", SqlDbType.VarChar, 20).Value = "年级编码"

Try

.ExecuteNonQuery()

Return True

Catch ex As Exception

Return False

End Try

End Function

2．调用存储过程，返回普通值

复制代码 代码如下:

Private Function SqlProc1(ByVal ProcName As String) As String

'定义数据链接部分省略, myConn为链接对象

Dim myCommand As New SqlClient.SqlCommand(ProcName, myConn)

With myCommand

.CommandType = CommandType.StoredProcedure

.Parameters.Add("@CodeType", SqlDbType.VarChar, 20).Value = "年级编码"

.Parameters.Add("@NewCode", SqlDbType.VarChar, 20).Direction = ParameterDirection.Output

Try

.ExecuteNonQuery()

Return .Parameters(1).Value()

Catch ex As Exception

Return "无编码生成"

End Try

End Function

3．调用存储过程，返回数据集

'VB.NET代码

复制代码 代码如下:

Private Function SqlProc2(ByVal ProcName As String, ByVal Param1 As String) As DataSet

'定义命令对象，并使用储存过程

Dim myCommand As New SqlClient.SqlCommand

myCommand.CommandType = CommandType.StoredProcedure

myCommand.CommandText = ProcName

myCommand.Connection = myConn

'定义一个数据适配器，并设置参数

Dim myDapter As New SqlClient.SqlDataAdapter(myCommand)

myDapter.SelectCommand.Parameters.Add("@name", SqlDbType.VarChar, 20).Value = Param1

'定义一个数据集对象，并填充数据集

Dim myDataSet As New DataSet

Try

myDapter.Fill(myDataSet)

Catch ex As Exception

End Try

Return myDataSet

End Function

'存储过程代码

Create Proc Test @name varchar(20) As

Select * From EC_Grade where cGradeName=@name

GO

***如果将存储过程修改部分内容,可以做为查询使用

CREATE Proc Test

@name varchar(200)=''

--此处应该注意200为查询条件的长度,可以根据实际情况而定;但不建议用于过长的查询条件

As

Declare @sql1 varchar(8000)

if @name<>''

Select @sql1='Select * From EC_Grade where '+ @name

else

Select @sql1='Select * From EC_Grade'

exec(@sql1)

GO