DynamicActivity Clase

Definición

public ref class DynamicActivity sealed : System::Activities::Activity, System::ComponentModel::ICustomTypeDescriptor

[System.Windows.Markup.ContentProperty("Implementation")]
public sealed class DynamicActivity : System.Activities.Activity, System.ComponentModel.ICustomTypeDescriptor

[<System.Windows.Markup.ContentProperty("Implementation")>]
type DynamicActivity = class
    inherit Activity
    interface ICustomTypeDescriptor

Public NotInheritable Class DynamicActivity
Inherits Activity
Implements ICustomTypeDescriptor

Herencia

Object

Activity

DynamicActivity

Atributos

ContentPropertyAttribute

Implementaciones

ICustomTypeDescriptor

Ejemplos

En el siguiente ejemplo se muestra cómo crear una clase DynamicActivity.

// Variables
var iterationVariable = new DelegateInArgument<int>() { Name = "iterationVariable" };
var accumulator = new Variable<int>() { Default = 0, Name = "accumulator" };

// Define the Input and Output arguments that the DynamicActivity binds to
var numbers = new InArgument<List<int>>();
var average = new OutArgument<double>();

var result = new Variable<double>() { Name = "result" };

return new DynamicActivity()
{
    DisplayName = "Find average",
    Properties =
    {
        // Input argument
        new DynamicActivityProperty
        {
            Name = "Numbers",
            Type = typeof(InArgument<List<int>>),
            Value = numbers
        },
        // Output argument
        new DynamicActivityProperty
        {
            Name = "Average",
            Type = typeof(OutArgument<double>),
            Value = average
        }
    },
    Implementation = () =>
        new Sequence
        {
            Variables = { result, accumulator },
            Activities =
            {
                new ForEach<int>
                {
                    Values =  new ArgumentValue<IEnumerable<int>> { ArgumentName = "Numbers" },
                    Body = new ActivityAction<int>
                    {
                        Argument = iterationVariable,
                        Handler = new Assign<int>
                        {
                            To = accumulator,
                            Value = new InArgument<int>(env => iterationVariable.Get(env) +  accumulator.Get(env))
                        }
                    }
                },

                // Calculate the average and assign to the output argument.
                new Assign<double>
                {
                    To = new ArgumentReference<double> { ArgumentName = "Average" },
                    Value = new InArgument<double>(env => accumulator.Get(env) / numbers.Get(env).Count<int>())
                },
            }
        }

Constructores

Propiedades

Métodos

Implementaciones de interfaz explícitas

Se aplica a