Eclipse Community Forums: NatTable » Filtering grouped columns

Help

Home

Home » Eclipse Projects » NatTable » Filtering grouped columns(How to filter several columns at once)

Show: Today's Messages :: Show Polls :: Message Navigator

Filtering grouped columns [message #1385513]

Sun, 08 June 2014 08:53

Gal Rogozinski

Messages: 40
Registered: June 2014

Member

Hello,

I want to group specific columns in my NatTable so that a single cell in FilterRowHeaderComposite could apply a filter on all the columns in that specific group.

I can't figure out how to do so...

Does anyone know?

Thanks!!!

Report message to a moderator

Re: Filtering grouped columns [message #1385569 is a reply to message #1385513]

Mon, 09 June 2014 15:01

Dirk Fauth

Messages: 2902
Registered: July 2012

Senior Member

One filter row cell for three columns? Not sure, one thing is rendering of the filter row between the column group and column header. The other thing is to implement a custom filter logic that applies three filters at once. Check the filter strategy to get an idea.

Report message to a moderator

Re: Filtering grouped columns [message #1385777 is a reply to message #1385569]

Wed, 11 June 2014 07:46

Gal Rogozinski

Messages: 40
Registered: June 2014

Member

Hmm I wrote this method in CustomSpanningDataProvider:

@Override
	public DataCell getCellByPosition(int columnPosition, int rowPosition) {
		String columnLabel = m_underlyingDataProvider.getColumnHeaderLabel(m_hideShowLayer.getColumnIndexByPosition(columnPosition));
		if (columnLabel.matches(".* \\d")){
			columnLabel = columnLabel.substring(0, columnLabel.length()-2);
		}
		if (m_groups.containsKey(columnLabel)){
			int startCol = m_hideShowLayer.getColumnPositionByIndex(Collections.min(m_groups.get(columnLabel)));
			int span = Collections.max(m_groups.get(columnLabel)) - Collections.min(m_groups.get(columnLabel)) + 1;
			return new DataCell(startCol, rowPosition, span, 1);
		}
         return new DataCell(columnPosition, rowPosition);
	}

The problem is that for every spanned cell I create several other spanned cells are created that have the same position and properties...
What do I do?

Report message to a moderator

Re: Filtering grouped columns [message #1385799 is a reply to message #1385777]

Wed, 11 June 2014 09:40

Dirk Fauth

Messages: 2902
Registered: July 2012

Senior Member

I'm not sure. Take a look at existing examples. Possibly you need to operate on indeces rather than positions.

Report message to a moderator

Re: Filtering grouped columns [message #1385815 is a reply to message #1385799]

Wed, 11 June 2014 11:47

Gal Rogozinski

Messages: 40
Registered: June 2014

Member

I saw an old post in the sourceforge forum that sounds like my problem.
The forum doesn't let me post the link but googling "sourceforge nattable spanning" should bring it up.

Is the problem described there fixed?

I also noticed that in spanningDataLayer the following method is overriden:

@Override
	public Rectangle getBoundsByPosition(int columnPosition, int rowPosition) {
		ILayerCell cell = getCellByPosition(columnPosition, rowPosition);
		return super.getBoundsByPosition(cell.getOriginColumnPosition(), cell.getOriginRowPosition());
	}

I don't use it because it deosn't work for me. Perhaps this is my pitfall?

Report message to a moderator

Re: Filtering grouped columns [message #1385821 is a reply to message #1385815]

Wed, 11 June 2014 12:08

Dirk Fauth

Messages: 2902
Registered: July 2012

Senior Member

I don't find the post you mention, so I don't know whether a possible bug is fixed or not.

And yes, maybe that is your pitfall. For spanning you need to use both, SpanningDataLayer and SpanningDataProvider.

Report message to a moderator

Previous Topic:	Can row groups and column groups use together?
Next Topic:	Making cells editable

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Fri Apr 19 14:38:21 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter