Switch<T>.Expression Property
Definition
Important
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Gets the object to compare to the keys in the Cases collection.
public:
property System::Activities::InArgument<T> ^ Expression { System::Activities::InArgument<T> ^ get(); void set(System::Activities::InArgument<T> ^ value); };
[System.Activities.RequiredArgument]
public System.Activities.InArgument<T> Expression { get; set; }
[<System.Activities.RequiredArgument>]
member this.Expression : System.Activities.InArgument<'T> with get, set
Public Property Expression As InArgument(Of T)
Property Value
The object to compare to the keys in the Cases collection.
- Attributes
Examples
The following code sample demonstrates setting the Expression property of a Switch<T> activity.
// check if the number is ok...
new Switch<int>()
{
DisplayName = "Verify Value from User",
Expression = ExpressionServices.Convert<int>( env => numberFromUser.Get(env).CompareTo(numberToGuess.Get(env)) ),
Cases =
{
{ 0, new Assign<bool>()
{
To = new OutArgument<bool>(finished),
Value = true
}
},
{ 1, new WriteLine() { Text = " Try a lower number number..." } },
{ -1, new WriteLine() { Text = " Try a higher number" } }
}
}
Remarks
The comparison occurs after the expression is evaluated.
Applies to
Σχόλια
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