Collapse Property Grid Groups

[RandomTask]

As I add more and more properties to my strategy I'd like to programmatically collapse some of the groups by default. Is there a way to accomplish this?
Thanks

[NinjaTrader_Jesse]

Hello RandomTask,

The ability to collapse certain groups is not possible, you can use the unsupported property to collapse all groups in the cases where that works.

https://ninjatrader.com/support/forum/forum/ninjatrader-8/strategy-development/1098224-categoryexpanded-set-standard-to-false?p=1098351#post1098351

You can also see this sample which uses a type converter, in that use case a custom class could be used which could have the property added to that class to close just the properties in that class. https://ninjatrader.com/support/help...r_to_custo.htm

Please let me know if I may be of additional assistance.

[jeronymite]

RandomTask Working with Property Grids, you probably already know that the WpfPropertyGrid class contains a collection of CategoryItem in Categories, and a collection of PropertyItem in Properties. These two types have a bool IsExpanded that can be used to achieve expand/collapse functionality. Something like this works for me:

for (int i = 0; i < propgrid.Properties.Count; i++)[INDENT]propgrid.Properties[i].IsExpanded = <true or false, as you wish>;[/INDENT]
 
for (int i = 0; i < propgrid.Categories.Count; i++)[INDENT]propgrid.Categories[i].IsExpanded = <true or false, as you wish>;[/INDENT]

Hope that helps.

[Mindset]

jeronymite
Can I ask how you get the propgrid property?

[jeronymite]

Mindset In the example I provided, propgrid is a PropertyGrid object in the System.Windows.Controls.WpfPropertyGrid namespace that you declare and manage. It's an implementation of the WPF PropertyGrid Control originally created by Denis Vuyka.

Thanks.