SSIS讀/寫腳本任務中的變量

Question

我有一個名為Valint的變量，我需要在腳本任務中對其進行讀/寫操作，但它似乎不起作用：

public class scriptmain
inherits usercomponent

dim counter as integer
dim Valint as integer
.....


Public sub new()
counter = 0
end sub

public overrides sub input0_processintputrow(byval row as input0buffer)
Dim vars as IDTSvariables100 = nothing

Me.variableDispenser.lockforread("User::Valint")
Me.variableDispenser.GetVariables(vars)

counter = CType (vars("User:: Valint").Value, integer)
vars.Unlock()

counter +=1

Me.VariableDispenser.LockoneForWrite("User::Valint", vars)
vars("User::Valint").Value = counter
vars.Unlock()
End Sub

由於某種原因，我的輸出始終為0

Answer 1

這是在數據流任務中，對嗎？ 至少在processinputrow子例程期間，不能在腳本轉換中修改變量。

幸運的是，看起來您正在執行的修改類型可以完成-只是在不同的子例程中。

我的唐納德·法默（Donald Farmer）編寫的SSIS腳本Beta版距我有一千英里，所以請原諒此代碼的不精確性。 重要的是，您只能從PostExecute事件中寫入用戶變量。

public class scriptmain
inherits usercomponent

dim counter as integer
dim Valint as integer
.....


Public sub new()
counter = 0
end sub

public overrides sub input0_processintputrow(byval row as input0buffer)
    counter +=1
End Sub

Public overrides sub PostExecute()
    Dim vars as IDTSvariables100 = nothing

    Me.variableDispenser.lockforread("User::Valint")
    Me.variableDispenser.GetVariables(vars)

    counter = CType (vars("User:: Valint").Value, integer)
    vars.Unlock()
    Me.VariableDispenser.LockoneForWrite("User::Valint", vars)
    vars("User::Valint").Value = counter
    vars.Unlock()
End Sub