Adds properties specific to the System.Web.UI.WebControls.TableCell control to the list of attributes to render.
The TableCell.AddAttributesToRender(System.Web.UI.HtmlTextWriter) method overrides the base class's WebControl.AddAttributesToRender(System.Web.UI.HtmlTextWriter) method and first calls the base method and then adds the System.Web.UI.WebControls.TableCell attributes corresponding to the TableCell.RowSpan property, the TableCell.ColumnSpan property and the TableCell.AssociatedHeaderCellID property. If the TableCell.AssociatedHeaderCellID property refers to a System.Web.UI.WebControls.TableHeaderCell that can not be found, an System.Web.HttpException is thrown.
The TableCell.AddAttributesToRender(System.Web.UI.HtmlTextWriter) method is used primarily by control developers extending the functionality of the System.Web.UI.WebControls.TableCell control.