Dim arParms() As SqlParameter = New SqlParameter(2) {}
arParms(0) = New SqlParameter("@code", SqlDbType.NVarChar, 50)
arParms(0).Value = textbox1.text
arParms(1) = New SqlParameter("@notChange", SqlDbType.NVarChar, 10)
arParms(1).Value = "02"
arParms(2) = New SqlParameter("@NeedDate", SqlDbType.NVarChar, 200)
arParms(2).Value = now.year & "-" & now.month & "-22 10:57:03.513"
Dim ds As DataSet = SqlHelper.ExecuteDataSet(conn, CommandType.StoredProcedure, "p_vdp_vendor_jk", arParms)
vb 代码,相信很容易能转成C#,sqlhelper 从网上找