Help with User Defined input

[GaryF]

I am trying to be able to select a value for volume in a stragety I am working on. I want to have the background color when volume on the bar exceedes a user definable amount. This script works great but I can not get a user defined value for volume. I have reviewed the help links about user defined input and tried everything I can think of as a can not figure it out. Please tell me what variable will work.

/// <summary>
/// Colors the background whenever Volume is greater that 5000 on bar
/// </summary>
[Description("Colors the background whenever Volume is greater that 5000 on bar")]
public class VolumeColor : Strategy
{
#region Variables
// Wizard generated variables
// User defined variables (add any user defined variables below)
#endregion

/// <summary>
/// This method is used to configure the strategy and is called once before any strategy method is called.
/// </summary>
protected override void Initialize()
{
CalculateOnBarClose = true;
}

/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()
{
// Condition set 1
if (Volume[0] > 5000)
{
BackColorAll = Color.LemonChiffon;
}
}

#region Properties
#endregion
}
}

[NinjaTrader_CalH]

Hi GaryF,

Thank you for your post and welcome to the forums!

You will need to declare the variable and then create a property for the variable.
Below is a reference sample that outlines exactly how to code this.

http://www.ninjatrader.com/support/f...ead.php?t=5782

Let me know if I can be of further assistance.

[GaryF]

I reviewed that link and still must be doing something wrong. I get the error message Cannot apply indexing with [] to an expression to type " int" . This is what I tried

/// <summary>
/// Volume background with variables.
/// </summary>
[Description("Volume background with variables.")]
public class AAAAE : Strategy
{
#region Variables
// Wizard generated variables
private int volume = 5000; // Default setting for Volume
// User defined variables (add any user defined variables below)
#endregion

/// <summary>
/// This method is used to configure the strategy and is called once before any strategy method is called.
/// </summary>
protected override void Initialize()
{
CalculateOnBarClose = true;
}

/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()
{
// Condition set 1
if (Volume[0] > 5000)
{
BackColor = Color.LemonChiffon;
}
}

#region Properties
[Description("Volume value")]
[GridCategory("Parameters")]
public int Volume
{
get { return volume; }
set { volume = Math.Max(1, value); }
}
#endregion
}
}

[NinjaTrader_CalH]

GaryF,

Volume is already a reserved name for NinjaScript. I recommend that you rename the variable to something such as myVolume.

You will then test this in the IF statement as -

if(Volume[0] > myVolume)
{
//Do something here
}

This tests the current Volume against your user defined input value.

Let me know if I can be of further assistance.

[GaryF]

Million Thanks

I greatly appreciate the execellent service you and the support team provide.