List of doubles/floats in parameter menu

[ivb73077]

Hello,

I would like to add a drop-down list of double values from which a user can select. Ordinarily, I would simply create an enum, but cannot do this with double data types.

Is there any way to have a "list" of doubles appear in the parameter menu? I am probably overlooking a simple solution to this problem.

Thank you.

[NinjaTrader_PatrickH]

Hello ivb73077,

Thank you for your post.

Define the cases in the enum as strings:

public enum MyDouble
{
	One,
	Two,
	Three,
	Four,
	// etc.
}

Then when you call the actual cases in the switch, assign the actual value:

        #region Variables
        private MyDouble myDbl = MyDouble.One;
		private double result = 0;
        #endregion

...

        protected override void OnBarUpdate()
        {
			switch (myDbl)
			{
				case MyDouble.One:
				{
					result = 1;
					break;
				}
				case MyDouble.Two:
				{
					result = 2;
					break;
				}
				case MyDouble.Three:
				{
					result = 3;
					break;
				}
				case MyDouble.Four:
				{
					result = 4;
					break;
				}
			}
        }

[ivb73077]

Patrick,

This is a completely viable solution that I can readily implement. Thank you.

For my own understanding, is there a way to have the actual list/array of doubles appear in the parameter list? I had tried creating an array of doubles, but the field gets populated with "double[] arrayName" which, when expanded, reveals the elements of the array.

[NinjaTrader_PatrickH]

Hello ivb73077,

I do not believe that is possible, but I could be wrong on this.

[ivb73077]

Fair enough. Thank you for the solution you proposed earlier. It is sufficient for my needs.

[koganam]

Patrick,

This is a completely viable solution that I can readily implement. Thank you.

For my own understanding, is there a way to have the actual list/array of doubles appear in the parameter list? I had tried creating an array of doubles, but the field gets populated with "double[] arrayName" which, when expanded, reveals the elements of the array.

To do that you would create a listbox control.

[ivb73077]

Another good option. Thanks.