Использование события CreatePage в FastReport .NET

<?xml version="1.0" encoding="utf-8"?>
<Report ScriptLanguage="CSharp" TextQuality="Regular" ReportInfo.Description="Demonstrates a group report. To create it:&#13;&#10;- go to &quot;Report|Configure Bands...&quot; menu;&#13;&#10;- press &quot;Add&quot; button and add a group header (this will add a data band and a group footer as well);&#13;&#10;- return to the report page, doubleclick the group header to show its editor." ReportInfo.Created="01/17/2008 04:31:41" ReportInfo.Modified="03/13/2024 17:32:59" ReportInfo.CreatorVersion="1.0.0.0">
 <ScriptText>
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Windows.Forms;
using System.Drawing;
using System.Data;
using FastReport;
using FastReport.Data;
using FastReport.Dialog;
using FastReport.Barcode;
using FastReport.Table;
using FastReport.Utils;
 
namespace FastReport
{
 public class ReportScript
 {
 private void Page1_CreatePage(object sender, EventArgs e)
 {
 if(Data1.DataSource.RowCount == 0)
 Data1.InitDataSource();
 Page1.ExportAlias = Data1.DataSource[&quot;ProductName&quot;].ToString().Substring(0,1);
 }
 }
}
</ScriptText>
 <Styles>
 <Style Name="EvenRows" Fill.Color="OldLace" Font="Arial, 10pt"/>
 </Styles>
 <Dictionary>
 <TableDataSource Name="Products" ReferenceName="NorthWind.Products" DataType="System.Int32" Enabled="true">
 <Column Name="ProductID" DataType="System.Int32"/>
 <Column Name="ProductName" DataType="System.String"/>
 <Column Name="SupplierID" DataType="System.Int32"/>
 <Column Name="CategoryID" DataType="System.Int32"/>
 <Column Name="QuantityPerUnit" DataType="System.String"/>
 <Column Name="UnitPrice" DataType="System.Decimal"/>
 <Column Name="UnitsInStock" DataType="System.Int16"/>
 <Column Name="UnitsOnOrder" DataType="System.Int16"/>
 <Column Name="ReorderLevel" DataType="System.Int16"/>
 <Column Name="Discontinued" DataType="System.Boolean" BindableControl="CheckBox"/>
 <Column Name="EAN13" DataType="System.String"/>
 </TableDataSource>
 <Total Name="TotalProducts" TotalType="Count" Evaluator="Data1" PrintOn="GroupFooter1"/>
 </Dictionary>
 <ReportPage Name="Page1" Watermark.Font="Arial, 60pt" CreatePageEvent="Page1_CreatePage">
 <ReportTitleBand Name="ReportTitle1" Width="718.2" Height="103.95" CanGrow="true">
 <TextObject Name="Text1" Top="56.7" Width="718.2" Height="47.25" Text="ALPHABETICAL PRODUCT LIST" HorzAlign="Center" VertAlign="Center" Font="Tahoma, 14pt, style=Bold"/>
 <TextObject Name="Text11" Top="28.35" Width="718.2" Height="28.35" Anchor="Top, Left, Right" Fill.Color="WhiteSmoke" CanGrow="true" CanShrink="true" Text="[Report.ReportInfo.Description]&#13;&#10;" Padding="4, 4, 4, 4" Font="Tahoma, 8pt"/>
 <TextObject Name="Text18" Width="718.2" Height="28.35" Anchor="Top, Left, Right" Fill.Color="WhiteSmoke" Cursor="Hand" Hyperlink.Value="http://fast.report/cda2a" Hyperlink.OpenLinkInNewTab="true" Text="Learn how to build this report on the Fast Reports Academy channel" VertAlign="Center" Font="Tahoma, 10pt, style=Bold, Underline" TextFill.Color="Blue"/>
 </ReportTitleBand>
 <GroupHeaderBand Name="GroupHeader1" Top="107.15" Width="718.2" Height="37.8" StartNewPage="true" KeepWithData="true" Condition="[Products.ProductName].Substring(0,1)" SortOrder="None">
 <TextObject Name="Text7" Left="9.45" Width="699.3" Height="37.8" Border.Lines="All" Border.Color="LightSkyBlue" Fill="LinearGradient" Fill.StartColor="LightSkyBlue" Fill.EndColor="AliceBlue" Fill.Angle="90" Fill.Focus="0.42" Fill.Contrast="1" Text="[[Products.ProductName].Substring(0,1)]" Padding="5, 0, 0, 0" VertAlign="Center" Font="Tahoma, 12pt, style=Bold"/>
 <DataBand Name="Data1" Top="148.15" Width="718.2" Height="18.9" DataSource="Products" KeepTogether="true">
 <TextObject Name="Text2" Left="9.45" Width="604.8" Height="18.9" Border.Lines="Left" Border.Color="LightSkyBlue" Text="[Products.ProductName]" VertAlign="Center" Font="Tahoma, 8pt">
 <Highlight>
 <Condition Expression="[Row#] % 2 == 0" Fill.Color="AliceBlue" TextFill.Color="Black" Font="Arial, 10pt" ApplyFill="true" ApplyTextFill="false"/>
 </Highlight>
 </TextObject>
 <TextObject Name="Text4" Left="614.25" Width="94.5" Height="18.9" Border.Lines="Right" Border.Color="LightSkyBlue" Text="[Products.UnitPrice]" Format="Currency" Format.UseLocale="true" Format.DecimalDigits="2" HorzAlign="Right" VertAlign="Center" Font="Tahoma, 8pt">
 <Highlight>
 <Condition Expression="[Row#] % 2 == 0" Fill.Color="AliceBlue" TextFill.Color="Black" Font="Arial, 10pt" ApplyFill="true" ApplyTextFill="false"/>
 </Highlight>
 </TextObject>
 <Sort>
 <Sort Expression="[Products.ProductName]"/>
 </Sort>
 </DataBand>
 <GroupFooterBand Name="GroupFooter1" Top="170.25" Width="718.2" Height="47.25" KeepWithData="true">
 <TextObject Name="Text8" Left="9.45" Width="699.3" Height="18.9" Border.Lines="Left, Right, Bottom" Border.Color="LightSkyBlue" Text="Total products: [TotalProducts]" HorzAlign="Right" VertAlign="Center" Font="Tahoma, 8pt, style=Bold"/>
 </GroupFooterBand>
 </GroupHeaderBand>
 <PageFooterBand Name="PageFooter1" Top="220.7" Width="718.2" Height="28.35" Fill.Color="WhiteSmoke">
 <TextObject Name="Text9" Left="614.25" Width="94.5" Height="28.35" Text="[PageN]" HorzAlign="Right" VertAlign="Center" Font="Tahoma, 8pt"/>
 <TextObject Name="Text12" Left="9.45" Width="217.35" Height="28.35" Cursor="Hand" Hyperlink.Value="https://www.fast-report.com/en/product/fast-report-net/" Text="Generated by FastReport .NET" VertAlign="Center" Font="Tahoma, 8pt, style=Underline" TextFill.Color="Blue"/>
 </PageFooterBand>
 </ReportPage>
</Report>