Select folder or file via property grid

[jeronymite]

Is there (or has anyone developed) a way to have a property that is a folder name or file name that can be chosen from the property grid by invoking the folder or file chooser dialog?

For example, on the grid, I select a property called, say, "Folder for trade records" and it pops up the folder chooser dialog.

Thanks for any assistance.

[koganam]

Is there (or has anyone developed) a way to have a property that is a folder name or file name that can be chosen from the property grid by invoking the folder or file chooser dialog?

For example, on the grid, I select a property called, say, "Folder for trade records" and it pops up the folder chooser dialog.

Thanks for any assistance.

Read this entire thread: the answer is in there. It is not a matter of what the thread is called: it is what it contains.

ref: http://www.ninjatrader.com/support/f...d.php?p=243127

[NinjaTrader_PatrickH]

Hello jeronymite,

Thank you for your post.

koganam provide a link to a thread in which this it was discussed, you can find his code example on this item at the following link: http://www.ninjatrader.com/support/f...40&postcount=9

This is outside the bounds of NinjaScript but is something that is possible through C# programming which NinjaScript is based on.

[jeronymite]

Many thanks, koganam!

The revealing of hitherto undiscovered functionality is always exciting.

I have implemented the code as follows:

private string SaveFilename ;

[Description("File to save"]
[GridCategory("Parameters (File Information)")]
[Gui.Design.DisplayName ("Name of old File")]
[EditorAttribute(typeof(System.Windows.Forms.Design .FileNameEditor), typeof(System.Drawing.Design.UITypeEditor))]
public string _SaveFilename
{
get { return SaveFilename ; }
set { SaveFilename = value ; }
}

I have added a reference to:

C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\ System.Design.dll

I note that the version of .NET is v4.5, but the file is there, so I chose the latest version of .NET. The strategy compiles without issue.

When I add the strategy and edit the parameters, I do not see the relevant entry in the grid, although other parameters in the same grid area are there.

Despite that, I enable the strategy and then get a popup that says:

Failed to execute DB job 'StrategyUpdateJob': There was an error reflecting type 'NinjaTrader.Strategy.MyStrategy'.: AssemblyResolveEvent handlers cannot return Assemblies loaded for reflection only.

... where MyStrategy is the name of my strategy.

Any further advice most welcome!

[koganam]

Many thanks, koganam!

The revealing of hitherto undiscovered functionality is always exciting.

I have implemented the code as follows:

private string SaveFilename ;

[Description("File to save"]
[GridCategory("Parameters (File Information)")]
[Gui.Design.DisplayName ("Name of old File")]
[EditorAttribute(typeof(System.Windows.Forms.Design .FileNameEditor), typeof(System.Drawing.Design.UITypeEditor))]
public string _SaveFilename
{
get { return SaveFilename ; }
set { SaveFilename = value ; }
}

I have added a reference to:

C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\ System.Design.dll

I note that the version of .NET is v4.5, but the file is there, so I chose the latest version of .NET. The strategy compiles without issue.

When I add the strategy and edit the parameters, I do not see the relevant entry in the grid, although other parameters in the same grid area are there.

Despite that, I enable the strategy and then get a popup that says:

Failed to execute DB job 'StrategyUpdateJob': There was an error reflecting type 'NinjaTrader.Strategy.MyStrategy'.: AssemblyResolveEvent handlers cannot return Assemblies loaded for reflection only.

... where MyStrategy is the name of my strategy.

Any further advice most welcome!

In the same thread is this post: www.ninjatrader.com/support/forum/showthread.php?p=243649

You must use the correct .NET versioon.

This statement is directly in the description notes in the code posted.

/// Demo of how to create a FileSelection Dialog Box in properties. You must reference System.Design.dll from Microsoft.NET 2.0, or it will not compile.

[jeronymite]

Thanks again, koganam.

I installed .NET Framework 2.0 and changed the reference and it works as documented.

It was indeed my mistake in thinking I could use the same dll from the most recent .Net Framework release.