DefaultValue and bool not working

custom_activities

#1

I have coded a custom Simple Test Activity and got same result in NativeActivity and CodeActivity.

Questions:
[DefaultValue(“”)] is not working on strings, boolean, integer, custom object or enum? How to pre-fill the input field with a default value?

How to return the value when having a Boolean as a checkbox? “F” is always false.

In UIPath how to make a new object in “I” and “J”?

using System;
using System.Activities.Presentation.Metadata;
using System.Activities;
using System.ComponentModel;

namespace SimpleTestActivity
{
    public class TestActivity : CodeActivity
    {
        [DefaultValue("A")]
        public InArgument<string> A { get; set; }

        [DefaultValue("B")]
        public string B { get; set; }

        [DefaultValue("B")]
        public InArgument<MyEnum> C { get; set; }

        [DefaultValue("C")]
        public MyEnum D { get; set; }

        [DefaultValue(true)]
        public InArgument<bool> E { get; set; }

        [DefaultValue(true)]
        public bool F { get; set; }

        [DefaultValue(42)]
        public InArgument<int> G { get; set; }

        [DefaultValue(24)]
        public int H { get; set; }

        //[DefaultValue(new CustomClass("A", 2))]   ????
        public InArgument<CustomClass> I { get; set; }

        //[DefaultValue(?????)]
        public CustomClass J { get; set; }

        public OutArgument<string> output { get; set; }

        protected override void Execute(CodeActivityContext context)
        {
            string result = string.Format(
                "A={0}, B={1}, C={2}, D={3}, E={4}, F={5}, G={6}, H={7}, I={8}, J={9}, K={10}, L={11}"
                , context.GetValue(this.A) + ", " + this.A.Get(context) + ", " + this.A + ";" + Environment.NewLine
                , this.B + ";" + Environment.NewLine
                , context.GetValue(this.C) + ", " + this.C.Get(context) + ", " + this.C + ";" + Environment.NewLine
                , this.D + ";" + Environment.NewLine
                , context.GetValue(this.E) + ", " + this.E.Get(context) + ", " + this.E + ";" + Environment.NewLine
                , this.F + ";" + Environment.NewLine
                , context.GetValue(this.G) + ", " + this.G.Get(context) + ", " + this.G + ";" + Environment.NewLine
                , this.H + ";" + Environment.NewLine
                , context.GetValue(this.I)?.ToString() + ", " + this.I.Get(context)?.ToString() + ", " + this.I?.ToString() + ";" + Environment.NewLine
                , this.J?.ToString() + ";" + Environment.NewLine
                , this.J?.K?.ToString() + ";" + Environment.NewLine
                , this.J?.L.ToString()
                );
            this.output.Set(context, result);
        }
    }

    public enum MyEnum
    {
        A,
        B,
        C
    }

    public class CustomClass
    {
        public CustomClass(string k, int l)
        {
            _k = k;
            _l = l;
        }

        public override string ToString()
        {
            return "(" + _k + "," + _l + ")";
        }

        string _k;
        public string K
        {
            get
            {
                return _k;
            }
            set
            {
                _k = value;
            }
        }

        int _l;
        public int L
        {
            get
            {
                return _l;
            }
            set
            {
                _l = value;
            }
        }
    }

    public class RegisterMetadata : IRegisterMetadata
    {
        public void Register()
        {
        }
    }
}

DefaultValues