C# IPresent类代码示例

		internal void Run(IPresent ip, Row row)
		{
			foreach (TableCell tc in _Items)
			{
				tc.Run(ip, row);
			}
			return ;
		}

		internal void Run(IPresent ip, Row row)
		{
			foreach (TableRow t in _Items)
			{
				t.Run(ip, row);
			}
			return;
		}

		internal void Run(IPresent ip, Row row)
		{
			ip.BodyStart(this);

			if (_ReportItems != null)
				_ReportItems.Run(ip, null);	// not sure about the row here?

			ip.BodyEnd(this);
			return ;
		}

		internal void Run(IPresent ip, Row row)
		{
		}

		internal virtual void Run(IPresent ip, Row row)
		{
			return;
		}

		internal bool AnyRows(IPresent ip, Rows data)
		{
			if (data == null || data.Data == null ||
				data.Data.Count <= 0)
			{
				string msg;
				if (this.NoRows != null)
					msg = this.NoRows.EvaluateString(ip.Report(), null);
				else
					msg = null;
				ip.DataRegionNoRows(this, msg);
				return false;
			}

			return true;
		}

        internal void Run(IPresent ip, Row row)
        {
            if (this.Visibility != null && Visibility.IsHidden(ip.Report(), row))
                return;

            ip.TableRowStart(this, row);
            _TableCells.Run(ip, row);
            ip.TableRowEnd(this, row);
            return ;
        }

		override internal void Run(IPresent ip, Row row)
		{
			Report r = ip.Report();
			WorkClass wc = GetValue(r);

			wc.Data = GetFilteredData(r, row);

			if (!AnyRows(ip, wc.Data))		// if no rows return
				return;					//   nothing left to do

			RunSetGrouping(r, wc);

			base.Run(ip, row);

			if (!ip.ListStart(this, row))	
				return;							// renderer doesn't want to continue
						   
			RunGroups(ip, wc, wc.Groups);

			ip.ListEnd(this, row);
			RemoveValue(r);
		}

		override internal void Run(IPresent ip, Row row)
		{
			base.Run(ip, row);

			string mtype=null; 
			Stream strm=null;
			try 
			{
				strm = GetImageStream(ip.Report(), row, out mtype);

				ip.Image(this, row, mtype, strm);
			}
			catch
			{
				// image failed to load;  continue processing
			}
			finally
			{
				if (strm != null)
					strm.Close();
			}
			return;
		}

 internal void Run(IPresent ip, Row row)
 {
     _TableRows.Run(ip, row);
     return;
 }

		internal void RunPage(IPresent ip)
		{
			Pages pgs = new Pages(this);
			try
			{
				Page p = new Page(1);				// kick it off with a new page
				pgs.AddPage(p);

				// Create all the pages
				_Body.RunPage(pgs);

				if (pgs.LastPage.IsEmpty())			// get rid of extraneous pages which
					pgs.RemoveLastPage();			//   can be caused by region page break at end

				// Now create the headers and footers for all the pages (as needed)
				if (_PageHeader != null)
					_PageHeader.RunPage(pgs);
				if (_PageFooter != null)
					_PageFooter.RunPage(pgs);

				ip.RunPages(pgs);
			}
			finally
			{
				pgs.CleanUp();		// always want to make sure we clean this up since 
			}

			return;
		}

		internal void Run(IPresent ip)
		{
			if (_Subreport == null)
			{	// do true intialization
				_RuntimeName = 0;				// start names off at zero
				ip.Start();
			}

			if (ip.IsPagingNeeded())
			{
				RunPage(ip);
			}
			else
			{
				if (_PageHeader != null && !(ip is RenderXml))
					_PageHeader.Run(ip, null);
				_Body.Run(ip, null);
				if (_PageFooter != null && !(ip is RenderXml))
					_PageFooter.Run(ip, null);
			}

			if (_Subreport == null)
				ip.End();
		}

		override internal void Run(IPresent ip, Row row)
		{
			Report rpt = ip.Report();
			WorkClass wc = GetValue(rpt);
			wc.FullData = wc.Data = GetFilteredData(rpt, row);

			if (!AnyRows(ip, wc.Data))		// if no rows return
				return;					//   nothing left to do

			int maxColumns;
			int maxRows;
			MatrixCellEntry[,] matrix = RunBuild(rpt, out maxRows, out maxColumns);

			// Now run thru the rows and columns of the matrix passing the information
			//   on to the rendering engine
            int headerRows = _ColumnGroupings.Items.Count;	// number of column headers we have
            if (!ip.MatrixStart(this, matrix, row, headerRows, maxRows, maxColumns))
				return;
			for (int iRow = 0; iRow < maxRows; iRow++)
			{
				ip.MatrixRowStart(this, iRow, row);
				for (int iColumn = 0; iColumn < maxColumns; iColumn++)
				{
					MatrixCellEntry mce = matrix[iRow, iColumn];
					if (mce == null)
					{
						ip.MatrixCellStart(this, null, iRow, iColumn, row, float.MinValue, float.MinValue, 1);
						ip.MatrixCellEnd(this, null, iRow, iColumn, row);
					}
					else
					{
						wc.Data = mce.Data;		// Must set this for evaluation

						Row lrow = wc.Data.Data.Count > 0? wc.Data.Data[0]:null;
						mce.DisplayItem.SetMC(rpt, mce);	// set for use by the display item
						SetGroupingValues(rpt, mce);
												   
						ip.MatrixCellStart(this, mce.DisplayItem, iRow, iColumn, lrow, mce.Height, mce.Width, mce.ColSpan);

						mce.DisplayItem.Run(ip, lrow);
						ip.MatrixCellEnd(this, mce.DisplayItem, iRow, iColumn, lrow);
					}
				}
				ip.MatrixRowEnd(this, iRow, row);
			}
			ip.MatrixEnd(this, row);
			RemoveValue(rpt);
		}

		override internal void Run(IPresent ip, Row row)
		{
			return;
		}

		internal void Run(IPresent ip)
		{
			if (_Subreport == null)
			{	// do true intialization
				ip.Start();
			}

			if (ip.IsPagingNeeded())
			{
				RunPage(ip);
			}
			else
			{
				if (_PageHeader != null && !(ip is RenderXml))
					_PageHeader.Run(ip, null);
				_Body.Run(ip, null);
				if (_PageFooter != null && !(ip is RenderXml))
					_PageFooter.Run(ip, null);
			}

			if (_Subreport == null)
				ip.End();

			if (_DataSourcesDefn != null)
				_DataSourcesDefn.CleanUp(ip.Report());	// datasets may not have been cleaned up
		}