How to launch custom WPF Window from WPF PropertyGrid in ninjatrader

[cmarkb]

Hi there,

I want to popup a custom WPF window to use as an editor from the indicator selector propertygrid. I have a working example in a stand alone WPF project using the System.Windows.Controls.WpfPropertyGrid.dll.
It uses the following method:

The property grid binds to the following object:

<pg:PropertyGrid SelectedObject="{StaticResource BusinessObject}" ShowReadOnlyProperties="True"/>

The BusinessObject is as follows:

    public class BusinessObject : INotifyPropertyChanged
    {
   ...

        [PropertyEditor(typeof(TestWindowPicker))]
        [PropertyOrder(4)]
        public string TestWindow
        {
            get { return testWindow; }
            set
            {
                if (testWindow == value) return;
                testWindow = value;
                OnPropertyChanged("TestWindow");
            }
        }
    ...
  }
}

The TestWindowPicker is a simple class that launches the TestWindow and passes the value back and forth.

    public class TestWindowPicker : PropertyEditor
    {
        public TestWindowPicker()
        {
            this.InlineTemplate = EditorKeys.FilePathPickerEditorKey;
        }

        public override void ShowDialog(PropertyItemValue propertyValue, IInputElement commandSource)
        {
            if (propertyValue == null) return;
            if (propertyValue.ParentProperty.IsReadOnly) return;

            TestWindow tw = new TestWindow();

            tw.TestString = propertyValue.StringValue;

            if (tw.ShowDialog() == true)
            {
                propertyValue.StringValue = tw.TestString;
            }
        }
    }

All pretty simple, and works great in the standalone project.

I have tried this approach with a property in my Indicator class, and the property does show on the NT Indicator selection dialogue, however the ellipse button [...] to launch the TestWindow does not appear, instead there is just a textbox.

The property in my indicator code is as follows:

[NinjaScriptProperty]
[Display(Name = "Test_String", Description = "Test String", Order = 2, GroupName = "Parameters")]
[PropertyEditor(typeof(TestWindowPicker))]
public string Test_String
{ get; set; }

Can you tell me what I am doing wrong here, and how to get it to show the ellipse button [...] to launch the TestWindow?

Thank you for your time.

[NinjaTrader_Jesse]

Hello,

Thank you for the post.

I wanted to check if you have an export of the ninjaScript item you are currently testing that is not working. I reviewed what you have provided but It looks like I would need to generate a new indicator and try to configure it as you have which may be difficult in this case.

If you can provide the sample you had used, I could review that and see if there is a way to get this working. I did try to copy the parts provided into a script but there are items missing like the TestWindow definition among other errors I can see.

I look forward to being of further assistance.

[cmarkb]

Jesse,

Thanks for the response. I have put together a sample indicator to allow you to replicate the issue, however I have noticed that I posted this in the NT7 forum, when it is an NT8 indicator I am working on. I will finish here and move to the following tread in the NT8 forum, and you can answer there ;-)

https://ninjatrader.com/support/forum/showthread.php?p=525770

Thanks for your time.