Bug 144378 There is no checkbox for user to bind a dynamic image
Description: Create a dynamic image, there is no checkbox for user to bind the column of dataset. Steps to reproduce: 1.Create a sample datasource and dataset with "select * from CLASSICMODELS.PRODUCTLINES". 2.Add a image to the report layout, select dynamic image type, and then click "Binding" button, select the dataset, and want to bind a column. But there is no checkbox for user to do this action. Expected result: Like data item, there is a checkbox for user to bind the column.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ColumnBindingDialog.java
label.setText( LABEL_COLUMN_BINDINGS );
			label.setLayoutData( new GridData( GridData.BEGINNING ) );
			combo = new CCombo( composite, SWT.READ_ONLY | SWT.BORDER );
			combo.setBackground( PlatformUI.getWorkbench( )
					.getDisplay( )
					.getSystemColor( SWT.COLOR_LIST_BACKGROUND ) );
			String[] dataSets = ChoiceSetFactory.getDataSets( );
			String[] newList = new String[dataSets.length + 1];
			newList[0] = NullChoice;
			System.arraycopy( dataSets, 0, newList, 1, dataSets.length );
			combo.setItems( newList );
			String dataSetName = getDataSetName( );
			combo.deselectAll( );
			if ( dataSetName != null )
			{
				combo.setText( dataSetName );
			}
			else
			{
				combo.select( 0 );
			}
			combo.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
			gd = new GridData( );
			gd.widthHint = 250;
			combo.setLayoutData( gd );
			combo.addSelectionListener( new SelectionAdapter( ) {
				public void widgetSelected( SelectionEvent event )
				{
					String value = null;
					if ( combo.getSelectionIndex( ) != 0 )