TypeConverter to allow a string input parameter

[henrymiles]

Hi NinjaTrader !
I was trying to find the way a user can input a long text, including CR ( several rows of data ), but cant find the way on Ninja 8
Do I need to use some TypeConverter ?
Any help or example please ?

[NinjaTrader_ChrisL]

Hello henrymiles, thanks for your note.

I tested out the Text drawing tool and if you hold shift+enter while editing its text, new lines will be created. It uses this property:

        private String text;
        //private        bool                            needsLayoutUpdate;
        [ExcludeFromTemplate]
        [Display(ResourceType = typeof(Custom.Resource), Name = "NinjaScriptDrawingToolText", GroupName = "NinjaScriptGeneral", Order = 1)]
        [PropertyEditor("NinjaTrader.Gui.Tools.MultilineEditor")]
        public string DisplayText
        {
            get { return text; }
            set
            {
                if (text == value)
                    return;
                text                = value;
                //needsLayoutUpdate    = true;
            }
        }

It looks like using this in an indicator does not work, it will only function in a DrawingTool. I will submit a feature request to our dev team to give the same functionality to the Indicators/Strategies property grid.

As an alternative, you can either have the user select a .txt file with a file picker property or add multiple string properties.

This code implements a custom file picker:

Create a custom file picker in the addon namespace:

namespace NinjaTrader.NinjaScript.AddOns
{
    public class CustomFilePicker : PropertyEditor
    {
        public CustomFilePicker()
        {
            InlineTemplate = CreateTemplate();
        }

        DataTemplate CreateTemplate()
        {
            const string xamlTemplate =

@"
<DataTemplate>
      <Grid>
        <Grid.ColumnDefinitions>
          <ColumnDefinition Width=""30""/>
          <ColumnDefinition Width=""*""/>
        </Grid.ColumnDefinitions>
    <Button Grid.Column=""0"" Content=""..."" Padding=""0"" Margin=""0""
              HorizontalAlignment=""Stretch"" VerticalAlignment=""Stretch""
              HorizontalContentAlignment=""Center""
              MinWidth=""30""
              Width=""30""
              MaxWidth=""30""
              Command =""pg:PropertyEditorCommands.ShowDialogEditor""
              CommandParameter=""{Binding}"" />
        <TextBox Grid.Column=""1""
                 Text=""{Binding StringValue}""
                 ToolTip=""{Binding Value}""/>
      </Grid>
</DataTemplate>
";

            ParserContext context = new ParserContext();
            context.XmlnsDictionary.Add("", "[URL="http://schemas.microsoft.com/winfx/2006/xaml/presentation%22"]http://schemas.microsoft.com/winfx/2006/xaml/presentation"[/URL]);
            context.XmlnsDictionary.Add("x", "[URL="http://schemas.microsoft.com/winfx/2006/xaml%22"]http://schemas.microsoft.com/winfx/2006/xaml"[/URL]);
            context.XmlnsDictionary.Add("pg", "[URL="http://schemas.denisvuyka.wordpress.com/wpfpropertygrid%22"]http://schemas.denisvuyka.wordpress.com/wpfpropertygrid"[/URL]);
            DataTemplate template = (DataTemplate)XamlReader.Parse(xamlTemplate, context);
            return template;
        }

        public override void ClearValue(PropertyItemValue propertyValue, IInputElement commandSource)
        {
            if (propertyValue == null || propertyValue.IsReadOnly)
            {
                return;
            }

            propertyValue.StringValue = string.Empty;
        }

        public override void ShowDialog(PropertyItemValue propertyValue, IInputElement commandSource)
        {
            PropertyGrid propGrid = commandSource as PropertyGrid;
            string lastPath = propertyValue.StringValue;

            if (propGrid == null) return;

            OpenFileDialog openFileDialog = new OpenFileDialog();
            openFileDialog.Filter = "All files (*.*)|*.*";
            openFileDialog.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
            openFileDialog.ShowDialog();

            propertyValue.StringValue = openFileDialog.FileName != String.Empty ? openFileDialog.FileName : lastPath; // change this string and compile, the ui does not see this change

            propGrid.DoReload();

            propGrid.RaiseEvent(new PropertyValueChangedEventArgs(PropertyGrid.PropertyValueChangedEvent, propertyValue.ParentProperty, ""));
        }
    }
}

Then use the file picker in a script:

[NinjaScriptProperty]
[PropertyEditor("NinjaTrader.NinjaScript.AddOns.CustomFilePicker")]
[Display(Name="Image1 File Path", Description="File Path for Image1", Order=15, GroupName="5. Images")]
public string Image1Path
{ get; set; }

[henrymiles]

Thanks !
I will give it a try

[henrymiles]

Do I need to add a spacific using declaration ? because I get an error stating that PropertyEditor could not be found

[NinjaTrader_ChrisL]

Hello henrymiles,

Yes, It looks like I deleted my test script on accident, I have included my using declarations below, Let me know if you can't compile after this:

For the Addon:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls.WpfPropertyGrid;
using System.Windows.Input;
using System.Windows.Media;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Core;
using NinjaTrader.Gui;
using NinjaTrader.Gui.Chart;
using NinjaTrader.Gui.SuperDom;
using NinjaTrader.Gui.Tools;
using NinjaTrader.Data;
using NinjaTrader.NinjaScript;
using NinjaTrader.Core.FloatingPoint;
using NinjaTrader.Gui.Tools;
using NinjaTrader.Gui.Tools.LoadingDialog;

For the indicator:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls.WpfPropertyGrid;
using System.Windows.Input;
using System.Windows.Media;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Gui;
using NinjaTrader.Gui.Chart;
using NinjaTrader.Gui.SuperDom;
using NinjaTrader.Gui.Tools;
using NinjaTrader.Data;
using NinjaTrader.NinjaScript;
using NinjaTrader.Core.FloatingPoint;
using NinjaTrader.NinjaScript.DrawingTools;

[henrymiles]

Now it found PropertyEditor, but missing ParserContent, XamlReader and OpenFileDialog

[NinjaTrader_ChrisL]

Hi henrymiles, Let me look through my deleted files and see if I can find my test script for this, please stand by.

[NinjaTrader_ChrisL]

Hello, I attached my test script here. It looks like two things are missing: 1. If you have not added a reference to System.Windows.Controls.WpfPropertyGrid.dll, do so now. Right click the editor>References>Navigate to C:\Program Files (x86)\NinjaTrader 8\bin> Select the System.Windows.Controls.WpfPropertyGrid.dll to add the reference.

After this, add "using Microsoft.Win32;" for the OpenFileDialouge in the addon.

[henrymiles]

Yes, now it works.... but just noticed it is just a file selector ...
Why not using just
[Display(Name="Image2 File Path", Description="File Path for Image2", Order=16, GroupName="5. Images")]
[PropertyEditor("NinjaTrader.Gui.Tools.FilePathPick er", Filter="TXT Files (*.txt)|*.txt")]
public string Image2Path
{ get; set; }
This do not needs an Addon... and the result is almost the same ?

PS : I need a multiline string input selector and the [PropertyEditor("NinjaTrader.Gui.Tools.MultilineEdi tor")] would be excellent...
...can we ask to have it on indicators please ?

[pmaglio]

Interesting that "NinjaTrader.Gui.Tools.FilePathPicker" works and "NinjaTrader.Gui.Tools.MultilineEditor" doesnt....

On NinjaTrader 7 this method used to work :

public string[] Multiple_Strings
{
get { return string_vector; }
set { string_vector = value; }
}

...but not working on Ninja 8

[NinjaTrader_ChrisL]

Hi,

I have added a feature request to add a multi-line string editor to the indicator property window. We will receive a feature tracking ID shortly.

[pmaglio]

Hi,

I have added a feature request to add a multi-line string editor to the indicator property window. We will receive a feature tracking ID shortly.

Hi ,

Any news about that ?
I just need a way to allow users to type a multi line string, something like this .
Im sure there must be already something similar available...

Thanks
Pablo

[NinjaTrader_ChrisL]

Hi, thanks for the follow up.

We are tracking your request under ID# SFT-4176. Please check the release notes upon future updates to check for added features:

https://ninjatrader.com/support/help...ease_notes.htm

Currently, there are no supported ways of doing it, but I will ask for more information from our development team on how to get this to work for a strategy/indicator.

Edit: We will continue to track the feature request. For now there's no way to get this in the strategy/indicator property grid.

I look forward to assisting you.

[nothingbutprofits]

Hello, I attached my test script here. It looks like two things are missing: 1. If you have not added a reference to System.Windows.Controls.WpfPropertyGrid.dll, do so now. Right click the editor>References>Navigate to C:\Program Files (x86)\NinjaTrader 8\bin> Select the System.Windows.Controls.WpfPropertyGrid.dll to add the reference.

After this, add "using Microsoft.Win32;" for the OpenFileDialouge in the addon.

Hi,

Can you update this zip file, as it seems to be the old version due to Microsoft.Win32?

We are moving toward Win64.

Note: Win32 is good for computers with 4GB or smaller RAM.

[NinjaTrader_ChrisL]

Hi, thanks for posting. Ther is no Microsoft.Win64 namespace. See here for an explanation :

https://stackoverflow.com/questions/...in64-namespace (publicly available)

Best regards,
-ChrisL