Bug 135265 Paste to a wrong column
Steps to reproduce: 1.Open the attached file 2.Choose the column[2] which contains a label , copy and paste to column[3] Expected result: It will be pasted to column[3] Actual result: It is pasted to column[4] The related bug is #103448
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/PropertyHandle.java
* @see org.eclipse.birt.report.model.api.SimpleValueHandle#isVisible()
	 */
	public boolean isVisible( )
	{
		boolean isVisible = true;
		switch ( propDefn.getValueType( ) )
		{
			case PropertyDefn.SYSTEM_PROPERTY :
			case PropertyDefn.EXTENSION_PROPERTY :
			case PropertyDefn.ODA_PROPERTY :
				IElementDefn elementDefn = getElementHandle( ).getDefn( );
				if ( !elementDefn.isPropertyVisible( propDefn.getName( ) ) )
					isVisible = false;
				break;
			case PropertyDefn.EXTENSION_MODEL_PROPERTY :
				if ( !propDefn.isVisible( ) )
					isVisible = false;
				break;
		}
		return isVisible;
	}
	/**
	 * Adds an item to the end of a list property. The handle must be working on
	 * a list property.
	 * 
	 * @param item
	 *            The new item to add.
	 * @throws SemanticException
	 *             If the property is not a list property, or if the the value
	 *             of the item is incorrect.