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Structural Refresh does not keep Column Order [message #1197222]

Tue, 19 November 2013 20:22

Arjan Kok

Messages: 40
Registered: July 2009

Member

Hi,

When running a structural refresh command e.g.

natTable.doCommand(new StructuralRefreshCommand());

then the Nattable resets the Column Order.

Is there a way to workaround this?

Kind Regards,

Arjan Kok

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Re: Structural Refresh does not keep Column Order [message #1197312 is a reply to message #1197222]

Tue, 19 November 2013 21:22

Dirk Fauth

Messages: 2902
Registered: July 2012

Senior Member

Quote:

Is there a way to workaround this?

Don't use the StructuralRefreshCommand! That's the only "workaround". A structural refresh cleans everything and refreshes the state.

You might want to try to execute a VisualRefreshCommand which will not reset layer states. Maybe that fits your needs.

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Re: Structural Refresh does not keep Column Order [message #1199460 is a reply to message #1197312]

Wed, 20 November 2013 21:29

Arjan Kok

Messages: 40
Registered: July 2009

Member

Ok, Thanks.

Note that a StructuralRefresh does not unhide a hidden Column, which seems a bit inconsistent.

What is the difference between VisualRefreshCommand and StructuralRefreshCommand?

Regards, Arjan.

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Re: Structural Refresh does not keep Column Order [message #1200568 is a reply to message #1199460]

Thu, 21 November 2013 09:54

Dirk Fauth

Messages: 2902
Registered: July 2012

Senior Member

Quote:

Note that a StructuralRefresh does not unhide a hidden Column, which seems a bit inconsistent.

I can look at this too and add it, which could make sense in context.

Quote:

What is the difference between VisualRefreshCommand and StructuralRefreshCommand?

Structural changes are changes to the structure (as you should guess from the name). This means the underlying data has changed, like removing/adding rows/columns and so on. Usually the StructuralRefreshCommand is used in conjunction with dynamic data models that change the whole structure.

Visual changes are changes that just impact the rendering by keeping the structure. Like updating values in the model, changing painters or styles and so on.

That said IMHO it would be correct to also reset the hide/show values completely on StructuralRefreshCommand. Will check back on that. Thanks for reporting.

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Re: Structural Refresh does not keep Column Order [message #1200649 is a reply to message #1200568]

Thu, 21 November 2013 10:41

Dirk Fauth

Messages: 2902
Registered: July 2012

Senior Member

Regarding StructuralRefreshCommand and hidden columns, it seems that simply changing this causes other issues. So I'll leave it as it is for now. But we will consider this for sure in the next architecture where we are planning to refactor the whole event mechanism.

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