Bug 155365 Can not set data type to "date time" when editing "Data Item"
Description: Can not set data type to "date time" when editing "Data Item" Steps to reproduce: 1. Insert a data item to the layout 2. Name it and set the expression to "a = new Date()" 3. Select the data type to date time 4. Press ok Actual result: An Birt Exception is thrown out. Expected result: No NPE thrown out
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ColumnBindingDialog.java
}
		public boolean isLabelProperty( Object element, String property )
		{
			return false;
		}
		public void removeListener( ILabelProviderListener listener )
		{
		}
	};
	private String highLightName = null;
	private ICellModifier cellModifier = new ICellModifier( ) {
		public boolean canModify( Object element, String property )
		{
			if ( property == null
					|| ( element == dummyChoice && !COLUMN_NAME.equals( property ) ) )
			{
				return false;
			}
			if ( COLUMN_AGGREGATEON.equals( property ) )
			{
				ComputedColumnHandle handle = ( (ComputedColumnHandle) element );
				if ( !ExpressionUtil.hasAggregation( handle.getExpression( ) )
						|| DEUtil.getGroupControlType( inputElement )
								.equals( DEUtil.TYPE_GROUP_NONE ) )
				{
					return false;
				}
			}
			return true;
		}