The AutoWidth property of a Table component indicates whether the reporting tool will fix the cells size after the report rendering.
The AutoWidth property is set to None. Column size is not changed. In this case setting the AutoWidthType property of a table and the FixedWidth property of cells will not affect on a table.
The AutoWidth property is set to Page. If a rendered table is placed on several pages then columns will have different width on different pages. It depends on data.
The AutoWidth property is set to Report. If a rendered table is placed on several pages then columns will have the same width in a report.