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TreeViewer & Columns number [message #1671827]

Fri, 13 March 2015 19:30

Kasper M.

Messages: 15
Registered: September 2014

Junior Member

Hi all,
the code below show my tree viewer with one column more (apparently not requested Mad

).
Indeed, it shows, correctly, the first two column "Column 1" and "Column 2" but one more empty 3rd column .... Crying or Very Sad

any idea/help from you expert?

personTab.setText("MY GREAT TAB");

Tree personTree = new Tree(parentTabFolder, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
personTree.setHeaderVisible(true);
TreeViewer treeViewer = new TreeViewer(personTree);

TreeColumn column1 = new TreeColumn(personTree, SWT.LEFT);
personTree.setLinesVisible(true);
column1.setAlignment(SWT.LEFT);
column1.setText("Column 1");
column1.setWidth(100);

TreeColumn column2 = new TreeColumn(personTree, SWT.RIGHT);
personTree.setLinesVisible(true);
column2.setAlignment(SWT.LEFT);
column2.setText("Column 2");
column2.setWidth(100);

personTab.setControl(treeViewer.getTree());

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Re: TreeViewer & Columns number [message #1679466 is a reply to message #1671827]

Mon, 16 March 2015 16:27

Eclipse User

You're mixing JFace and SWT: use JFace to create the columns. Rather than create SWT TableColumns, create JFace TableViewerColumns instead.

Brian.

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Re: TreeViewer & Columns number [message #1679607 is a reply to message #1679466]

Mon, 16 March 2015 17:38

Kasper M.

Messages: 15
Registered: September 2014

Junior Member

mmh ... right Shocked

refactored but with the same result Mad

		// tabFolder is a CTabFolder!
		CTabItem personTab = new CTabItem(commandsTabFolder, SWT.NONE);
		personTab.setText("MY GREAT TAB");

		TableViewer treeViewer = new TableViewer(commandsTabFolder);

		// first column is for the first name
		final TableViewerColumn viewerColumn = new TableViewerColumn(treeViewer, SWT.NONE);
		TableColumn column = viewerColumn.getColumn();
		column.setText("Name");
		column.setWidth(150);

		TableViewerColumn viewerColumn2 = new TableViewerColumn(treeViewer, SWT.NONE);
		column = viewerColumn2.getColumn();
		column.setText("Surname");
		column.setWidth(200);

		final Table table = treeViewer.getTable();
		table.setHeaderVisible(true);
		table.setLinesVisible(true);

		GridLayout layout = new GridLayout(2, true);
		commandsTabFolder.setLayout(layout);

		personTab.setControl(treeViewer.getTable());

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Re: TreeViewer & Columns number [message #1684762 is a reply to message #1671827]

Wed, 18 March 2015 15:13

Thibault Le Ouay

Messages: 23
Registered: October 2014

Junior Member

You should use the TableColumnLayout

        Composite innerComposite = new Composite(shell, SWT.NONE);
        TableColumnLayout tableColumLayout = new TableColumnLayout();
        innerComposite.setLayout(tableColumLayout);
        TableViewer treeViewer = new TableViewer(innerComposite);

        // first column is for the first name
        final TableViewerColumn viewerColumn1 = new TableViewerColumn(treeViewer, SWT.NONE);
        TableColumn column = viewerColumn1.getColumn();
        column.setText("Name");

        tableColumLayout.setColumnData(viewerColumn1.getColumn(), new ColumnWeightData(50));
        TableViewerColumn viewerColumn2 = new TableViewerColumn(treeViewer, SWT.NONE);
        column = viewerColumn2.getColumn();
        column.setText("Surname");
        tableColumLayout.setColumnData(viewerColumn2.getColumn(), new ColumnWeightData(50));


        final Table table = treeViewer.getTable();
        table.setHeaderVisible(true);
        table.setLinesVisible(true);

Play with the weight data

Enjoy !

HTH

Thibault

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