Question

我有一个名为 Valint 的变量，我需要在脚本任务中读取/写入，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

由于某种原因，我的输出始终为0

Answer 1

这是在数据流任务中，是吗？您无法在脚本转换中修改变量，至少在processinputrow子例程中是这样。

幸运的是，似乎你正在做的修改类型 - 只是在不同的子程序中。

Donald Farmer的我的SSIS Scripting Beta书距离我有一千英里，所以请原谅这段代码的不精确。重要的是，您只能从PostExecute事件中写入用户变量。

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

SSIS在脚本任务中读/写变量

1 个答案: