WF4虽然在代码中的活动状态 [英] WF4 While activity condition in code
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问题描述
我建立在我的代码工作流,我不知道我怎么可以添加一个简单的(虽然)的条件。 ,试图弄清楚如何,但它没有运气,在互联网上搜索,但没有运气在任
这是什么,我试图做一个简化的版本:
ActivityBuilder AB =新ActivityBuilder();
ab.Implementation =新序列()
{
变量=
{
新变量< INT>(StepNo,0)
},
=活动
{
新尽管()
{
条件= LT; the_condition>
体=
{
//这里的一些逻辑和StepNo增加
}
}
}
$} b $ b
while条件应该是像StepNo小于10。任何想法怎么能这样作?
解决方案
VAR stepNo =新变量< INT>(stepNo,0);
VAR活动=新序列
{
变量=
{
stepNo
},
活动=
{
新虽然
{
条件=新每种不超过< INT,INT,BOOL>
{
左= stepNo,
右键= 10
},
体=新序列
{
活动=
{
新分配< INT>
{
要= stepNo,
值=新添加< INT,INT,INT>
{
左= stepNo,
右键= 1
}
},
新的WriteLine
{
文本=新VisualBasicValue<串>(\步骤:\&放大器; stepNo)
}
}
}
}
}
};
或者没有的表达活动但只的 VisualBasicValue ,这也是一个活动:
VAR stepNo =新变量< INT>(stepNo,0);
VAR活动=新序列
{
变量=
{
stepNo
},
活动=
{
新虽然
{
条件=新VisualBasicValue<布尔>(stepNo小于10),
体=新序列
{
=活动
{
新分配< INT>
{
要= stepNo,
值=新VisualBasicValue< INT>(stepNo + 1)
},
新的WriteLine
{
文本=新VisualBasicValue<串>(\步骤:\&放大器; stepNo)
}
}
}
}
}
};
I am building a workflow in my code, and I don't know how I can add a simple (While) condition. Tried to figure out how, but no luck with it, search on the internet but no luck either.
This is a simplified version of what I am trying to do:
ActivityBuilder ab = new ActivityBuilder();
ab.Implementation = new Sequence()
{
Variables =
{
new Variable<int>("StepNo", 0)
},
Activities =
{
new While()
{
Condition = <the_condition>
Body =
{
//Some logic here and the StepNo is increased
}
}
}
}
The While condition should be something like "StepNo < 10". Any idea how can this be made?
解决方案
var stepNo = new Variable<int>("stepNo", 0);
var activity = new Sequence
{
Variables =
{
stepNo
},
Activities =
{
new While
{
Condition = new LessThan<int,int,bool>
{
Left = stepNo,
Right = 10
},
Body = new Sequence
{
Activities =
{
new Assign<int>
{
To = stepNo,
Value = new Add<int, int, int>
{
Left = stepNo,
Right = 1
}
},
new WriteLine
{
Text = new VisualBasicValue<string>("\"Step: \" & stepNo")
}
}
}
}
}
};
Or a version without expression activities but only with VisualBasicValue, which is also an activity:
var stepNo = new Variable<int>("stepNo", 0);
var activity = new Sequence
{
Variables =
{
stepNo
},
Activities =
{
new While
{
Condition = new VisualBasicValue<bool>("stepNo < 10"),
Body = new Sequence
{
Activities =
{
new Assign<int>
{
To = stepNo,
Value = new VisualBasicValue<int>("stepNo + 1")
},
new WriteLine
{
Text = new VisualBasicValue<string>("\"Step: \" & stepNo")
}
}
}
}
}
};
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