Hide or show some properties based on another properties value

[zSucco]

Hello,

I'm developing a strategy and since there are a lot of potential user defined variables, I want to keep things as much clean and organized as possible.
What I'm trying to achieve is to hide or show some properties based on a boolean:

Example:



I want to hide the Long Entry Line and Short Entry Line variable IF Calculate on given price is false. The moment I turn Calculate on given price to true those two variables should pop up.
Searching the documents and other topics here on the forum, I have come across the [RefreshProperties(RefreshProperties.All)] and [Browsable()] attribute and tried to "dynamically" change that, but I couldn't get it to work.

I have some coding experience but I have never worked with attributes like this and the documentation on Attributes is very small, so any help on the matter is well appreciated

Thanks for your help

[NinjaTrader_Emily]

Hello zSucco,

Thank you for your post.

I recommend checking out the following reference sample script:

• Using a TypeConverter to Customize Property Grid Behavior: https://ninjatrader.com/support/help...r_to_custo.htm

Use case Home in that script shows how to toggle if properties are shown/hidden based on a bool checkbox. You may search the script for "use case #1" and jump to different comments and regions of code that are relevant to that use case. This information should be exactly what you are looking to achieve.

Please let us know if we may be of further assistance.

[zSucco]

Hello Emily,

Thank you for your help, I'll get an in depth look as soon as I can, I'll get back to you

Have a good day

[PaulMohn]

Sample Indicator TypeConverter

https://pastecode.io/s/rmvz1nyy

        // Custom Grid properties which will implement custom behavior
        #region Use Case #1: Show/hide properties based on secondary input

        [RefreshProperties(RefreshProperties.All)] // Needed to refresh the property grid when the value changes
        [Display(Name = "Toggle show/hide", Order = 1, GroupName = "Use Case #1")]
        public bool ShowHideToggle
        { get; set; }

        [Range(1, int.MaxValue)]
        [Display(Name = "Toggle value #1", Order = 2, GroupName = "Use Case #1")]
        public int ToggleValue1
        { get; set; }

        [Range(1, int.MaxValue)]
        [Display(Name = "Toggle value #2", Order = 3, GroupName = "Use Case #1")]
        public int ToggleValue2
        { get; set; }

        #endregion​

    #region Use Case #1/: Show/hide properties based on secondary input & Disable/enable properties based on secondary input

    // This custom TypeConverter is applied ot the entire indicator object and handles two of our use cases
    // IMPORTANT: Inherit from IndicatorBaseConverter so we get default NinjaTrader property handling logic
    // IMPORTANT: Not doing this will completely break the property grids!
    // If targeting a "Strategy", use the "StrategyBaseConverter" base type instead
    public class MyConverter : IndicatorBaseConverter // or StrategyBaseConverter
    {
        public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object component, Attribute[] attrs)
        {
            // we need the indicator instance which actually exists on the grid
            SampleIndicatorTypeConverter indicator = component as SampleIndicatorTypeConverter;

            // base.GetProperties ensures we have all the properties (and associated property grid editors)
            // NinjaTrader internal logic determines for a given indicator
            PropertyDescriptorCollection propertyDescriptorCollection = base.GetPropertiesSupported(context)
                                                                        ? base.GetProperties(context, component, attrs)
                                                                        : TypeDescriptor.GetProperties(component, attrs);

            if (indicator == null || propertyDescriptorCollection == null)
                return propertyDescriptorCollection;


            #region Use Case #1: Show/hide properties based on secondary input

            // These two values are will be shown/hidden (toggled) based on "ShowHideToggle" bool value
            PropertyDescriptor toggleValue1 = propertyDescriptorCollection["ToggleValue1"];
            PropertyDescriptor toggleValue2 = propertyDescriptorCollection["ToggleValue2"];

            // This removes the following properties from the grid to start off with
            propertyDescriptorCollection.Remove(toggleValue1);
            propertyDescriptorCollection.Remove(toggleValue2);

            // Now that We've removed the default property descriptors, we can decide if they need to be re-added
            // If "ShowHideToggle" is set to true, re-add these values to the property collection
            if (indicator.ShowHideToggle)
            {
                propertyDescriptorCollection.Add(toggleValue1);
                propertyDescriptorCollection.Add(toggleValue2);
            }

            // otherwise, nothing else to do since they were already removed

            #endregion
    }​

https://pastecode.io/s/gmoe33p2

[PaulMohn]

RenkoTrader v1.6

https://pastecode.io/s/d1zxcb61

https://pastecode.io/s/ow7sge2r

https://pastecode.io/s/z54tzq7g

https://pastecode.io/s/tkzv8ihz

https://pastecode.io/s/2mj8xbbw

https://ninjatraderecosystem.com/use...-frame-filter/

[PaulMohn]

ColorThePlot

https://pastecode.io/s/z5f1dixe

https://ninjatraderecosystem.com/user-app-share-download/colortheplot/

[PaulMohn]

Hello @NinjaTrader_ChelseaB,

Does this work with strategies vs indicator?

namespace NinjaTrader.NinjaScript.[B]Strategies[/B]
{
    [TypeConverter("NinjaTrader.NinjaScript.[B]Strategies[/B].MyXConverter")]​

    public class MyXConverterStrat : [B]Strategy[/B]
    {​
        
        bool MyX()
        {
            if(Cond0())
            {
                 return true;
             }
                
             return false;
          }
    }
}

#region ConverterStuff
    
    public class MyXConverter: StrategyBaseConverter
    {
        public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object component, Attribute[] attrs)
        {
            MyXConverterStrat [B]strategy[/B]= component as MyXConverterStrat; // need the same name as the Class name

            PropertyDescriptorCollection propertyDescriptorCollection = base.GetPropertiesSupported(context)
                                                                        ? base.GetProperties(context, component, attrs)
                                                                        : TypeDescriptor.GetProperties(component, attrs);

            if (strategy == null || propertyDescriptorCollection == null)
                return propertyDescriptorCollection;
                

            PropertyDescriptor UpSoundFile            = propertyDescriptorCollection["UpSoundFile"];
            
                
            // remove removable properties first
            
            propertyDescriptorCollection.Remove(UpSoundFile);

            // Add back in if...
                        
            if ([B]strategy[/B].MyX())
            {
                propertyDescriptorCollection.Add(UpSoundFile);                                
            }
        
            return propertyDescriptorCollection;
        }
        
        // Important:  This must return true otherwise the type convetor will not be called
        public override bool GetPropertiesSupported(ITypeDescriptorContext context)
        { return true; }
    }        
    #endregion
}​

[PaulMohn]

NinjaTrader_ChelseaB

I'm getting this compile error

NinjaScript File Error Code Line Column
MyXConverterStrat.cs 'NinjaTrader.NinjaScript.Strategies.MyXConverterSt rat.MyX()' is inaccessible due to its protection level CS0122 9241 18

From this line:

if (strategy.MyX())

I checked this but the callable method is a boolean method (no static signature):

https://forum.ninjatrader.com/forum/ninjatrader-7/general-development/10755-inaccessible-due-to-its-protection-level

What's causing this error and what's the fix?

Fix:

https://forum.ninjatrader.com/forum/ninjatrader-7/general-development/20092-protection-level-error?p=1315372#post1315372

namespace NinjaTrader.NinjaScript.Strategies
{
[TypeConverter("NinjaTrader.NinjaScript.Strategies.MyXConverter")]

public class MyXConverterStrat : Strategy
{

public bool MyX()
{
if(Cond0())
{
return true;
}

return false;
}
}
}

For access from separate class

https://stackoverflow.com/a/31302894/10789707