Bug 201673 Data Set Editor should not generate Parameter Position for an Named ODA Parameter
It is valid for an ODA data set parameter definition to have a driver-defined (native) name and no position (value = 0). The Data Set Editor currently assumes that this is not valid. It should *not* have automatically assign a derived position ( >0 value) to the data set parameter and issue a user warning message. The warning message in this case is inaccurate. And by assigning a bogus parameter position, it may disable the ability for the Data Engine to use the parameter's native name when interacting with the ODA runtime driver.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/data/ui/property/AbstractPropertyDialog.java
if ( event.detail == SWT.DRAG )
				{
					return;
				}
				Sash sash = (Sash) event.widget;
				int shift = event.x - sash.getBounds( ).x;
				GridData data = (GridData) left.getLayoutData( );
				int newWidthHint = data.widthHint + shift;
				if ( newWidthHint < 100 )
				{
					newWidthHint = 100;
					shift = 100 - data.widthHint;
				}
				
				
				widthHints[0] = data.widthHint = newWidthHint;
				data = (GridData) right.getLayoutData( );
				newWidthHint = data.widthHint - shift;
				widthHints[1] = data.widthHint = newWidthHint;
				parent.layout( );
			}
		} );
	}
	/**
	 * For the first node of tree is not default selected as it is under
	 * Windows, this method set the first node to be selected for Linux.
	 */
	private void initTreeSelection( )
	{
		PropertyNode node = getNode( getDeafultNode( ) );